SPECIFICATION WRITING.pdf
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Specification Writing 1. GENERAL Specifications, as one of the Contract Documents, deserve as much care and attention as working drawings. They should be clear, concise and accurate in their wording. Specifications should not duplicate the information given on the drawings, (information that can be most clearly shown by drawings) but should deal with all other needed information with as few well-chosen words as necessary for complete understanding. One problem, which must be faced by the specification writer is that of providing for effective competition between producers. For the general contractor (and separate contractors) competition may be provided by the bidding process, and these contractor will promoted competition between subcontractors and suppliers whenever the specifications permit it. When specifications designate a product which can be furnished by only one producer or dealer, however, no competition is provided and the cost of the products may be higher than it would otherwise be. If two or more designated products would serve equally well, the contractor should be given the choice. For major items the contractors may be required to submit alternate bids. The words “or equal” should never be used, since doing so postpones the time of decision, and encourages the expression of differing opinions of comparative qualities. The resulting uncertainty causes bidders to protect themselves by bidding high enough to pay for the most expensive item they might be required to furnish, and then seek approval of a cheaper one. 2. PROCEDURE The specifications should be started in the form of a construction outline and equipment outline (or outline specifications) to accompany the schematic drawings, and be further developed as preliminary specifications to accompany later design drawings. Thus, decisions, made tentatively at first, become firm if not changed; the client is given time to consider before approving important decisions; and data for preliminary estimates are made available. Since the preliminary specifications may not have been prepared by the specification writer, and he may not have followed later developments, a review of the working drawings and notations of decisions is in order. This may uncover the need for additional decisions, regarding selection of materials or methods of construction or the choice of equipment. Proceed from this point as follows: 1) Prepare a list of all sections 2) Write scope of the work for each section. 3) Coordinate “Scopes” to make sure that everything is included.
4) Prepare specification brief (or “dummy”) The following shall be covered in the scope of the work when applicable: 1. Material and labor included under this section. 2. Material required to be furnished under this section to be installed by others (Indicate who) 3. Material furnished by others (Indicate who) to be installed under this section. 4. Work shown on the drawings not included under this section. 5. Work shown on the drawings not included under the contract. 3. CONFLICTS BETWEEN SPECIFICATIONS AND DRAWINGS The General Provisions of the contract states that “Anything mentioned in the specifications, and not shown in the drawings, or shown on the drawings and not mentioned in the specifications, shall be of like effect as if shown or mentioned in both. In case of difference between drawings and specifications, the specification shall govern. In case of discrepancy either in figures, in the drawings or in the specifications, the matter shall be promptly submitted to the contracting officer, who shall promptly make a determination in writing. 4. FORM, SENTENCES, GRAMMAR If, in the wording of specifications, complete sentences are used, many repetitions of the words “Architect”, “contractor”, “owner”, “shall be” and “will be” are necessary. The accepted rule, is to use the words “shall” and “will” with proper discrimination, as an example: - Certain things shall be done by the contractors, other things will be done by the owner. The use of the words “to be” or “are to be” lack definiteness and clarity. Use “shall be” or “must be” to secure the mandatory form essential to specifications. a. Styles to Avoid Since the specifications are one part of the contract documents, that the contract is between the owner and a prime contractor; and that the prime contractor is the only party responsible for completing the work the accord with the specifications, therefor, it is never proper to refer to a sub-contractor in the specifications; example: INCORRECT: “The Tile Contractor shall examine surfaces for defects.” This style is incorrect because it violates the intent of the contract, undermines the proper chain of command, and invites disputes over authority and responsibility for compliance with the specifications. ACCEPTABLE: “The Contractor shall install all accessories.” BETTER: “All accessories shall be installed”
BEST: “Install all accessories” Another structure to avoid is the verb phrase “is to be”; for example: AVOID: “Adhesive is to be spread with a notched trowel” BETTER: “Spread adhesive with a notched trowel” BETTER: “Use a notched Trowel” b. CORRECT GRAMMAR The tense of the subject and that of the verb must always agree plural verbs should not be used with singular subjects nor vice versa. CORRECT: ONE of the elongated Central fasteners is to be placed around the eye of the panel and bolted. INCORRECT: One of the elongated fasteners are to be placed around the eye of the panel and bolted. BETTER: Bolt one of the elongated fasteners to the eye of the panel. The rules of good grammar require parallel construction. The use of identical style in both parts of a compound subject or predicate, or the use of identical style in a string of prepositional phrases modifying the same noun. INCORRECT: Heating, ventilation, and Air-Conditioning CORRECT: Heating, ventilation, and Air Conditioning INCORRECT: Tests shall be performed to determine strength and the quality shall be established. CORRECT: Tests shall be performed to determine strength and to established quality. BETTER: Perform tests to determine strength and to establish quality. c. Avoid words having varied or indefinite meanings DO NOT SAY: “The equipment shall be removed and replaced as indicated.” SAY: “Remove equipment during the alteration thereof and reinstall after completion.” DO NOT SAY: “The existing culverts shall be replaced as indicated on the drawings.” SAY: “Remove existing culverts shall reinstall in the new location.” d. “PROVIDE” is defined in the general provisions as “Furnish and install”. When material and /or equipment are only to be furnished by the contractor, the term “furnish” should be used, and when material and/or equipment are only to be installed
by the contractor may be required to “provide” foundation, fastenings, etc., for the installation. If the word “install” is used alone, the bidder or contractor has a right to assume, on the basis of the definition cited, that the government (if public) or the owner (if private) will “furnish” the material is question. Therefore define what is to be provided by the contractor to complete such an installation.
THREE-PART SECTION FORMAT The section provided for recognition of a basic unit work. The content of a section must indicated clearly all that is necessary to know about that basic unit of work. With a threepart section format the function of each part can be described briefly as follows: 1. Part one covers those general areas of concern which precede and follow the word, and which define the scope of the work. 2. Part two defines in detail the materials, equipment, systems, fixtures, etc., which will be incorporated into the work. 3. Part three describes in detail the manner in which items covered by part two ar to be incorporated into the work. INTERNAL NUMBERING The basic scheme of alternating numbers ad letters is recommended in lieu of an all number scheme. (2,2.1, 2.11, 2.1.1.1). The contrast between number and letter contributes to visual acquity and comprehension. The contrast further contributes to the mental establishment and retention of levels of emphasis or rank of the paragraph. The recommended method of numbering the internal elements of the section paragraph is: 1.1 PARAGRAPH TITLE a. Subparagraph 1. Subparagraph a)subparagraph numbering systems within the Section alternate numbers and letters and various paragraphs and subparagraphs should be indented accordingly. Outline of the Three-Part Section Format The outline presented herein and paragraph titles have been made as comprehensive as possible including most items utilized in current specifications practice. This provides a framework for the location of these items, if the specifier
wishes to include them. However, in some cases, inclusion of these items in specifications is contrary to principles of the CSI Manual of Practice and their appearance in this report does not constitute an endorsement of their use.
Part 1: General Execution Scope Description Requirements of Regulatory Agencies Qualifications Submittals Mock-Up Product Handling Environmental Conditions Protection Operating Instructions Extra Stock Alternates Measurement and Payment
Part 2: Products
Materials Mixes Equipment Fabrication Source Quality Control
Part
3:
Condition of Surfaces Preparation Installation Field Quality Control Adjusting Patching Cleaning Schedules
Suggested Groupings of Paragraphs
PART 1: GENERAL Scope Where a scope paragraph is used, it should be at the beginning of part one. See Scope Paragraphs in Specifications Sections [Ref. 11] which cautions against its inclusion. This also applies to related paragraphs such as: Related Work Specified Elsewhere Furnished by Others Furnished But Not Installed Not Furnished But Installed Furnished by Owner
Description of Systems This location for grouping paragraphs is recommended mainly for sections where engineers often describe systems with such paragraph titles as: Water Supply System Cold Water System Hot Water System Chilled Water System Storm Water Drainage System Soil and Waste Drainage System Heating System Cooling System Fire Protection System Electrical Distribution System Wiring System Motor Wiring System Telephone System Call System Time Clock System Fire Detection System Loud Speaker System Burglar Alarm System TV and Radio System Outside Lighting System and where architects may describe such systems as: Conveyor System Passenger Elevator System Freight Elevator System Integrated Ceiling System Floor Decking System Curtain Wall System Panel Wall System Requirements of Regulatory Agencies At this point it is recommended paragraphs be grouped with such titles as: Permits Codes Ordinances U.L. Regulations Tests by Agencies Design Conditions
Qualifications Should there be in a section qualification requirement paragraphs, they may be grouped here with such titles as: Qualification of Manufacturer Qualification of Applicators Qualification of Welders Qualification of Erectors Qualification of Testing Agency
Submittals Many specification sections require submittals and this location is recommended for paragraphs such as the following: Time and Sequence Schedules Shop Drawing Samples Manufacturer’s Literature Lists Parts List Certificates Guarantees (when over 1 year) Bonds (such as roofing bonds) Mock-up Mock-up is defined in Webster’s Dictionary as “a full-sized structural model built accurately to scale chiefly for study, testing or display. “ thus, under such a heading would occur such paragraphs as follows: Sample Panels Models Window Assembly Door Assembly Curtain Wall Assembly Panel Wall Assembly Integrated Ceiling Assembly
Product Handling At this location it is recommended to place paragraphs with such titles as: Delivery of Materials Delivery of Equipment Delivery of Fixtures Storage of Material Storage of Equipment Storage of Fixtures Handling Materials Handling Equipment Handling Fixtures Crating Environmental Conditions For certain types of materials, it is necessary to specify proper environmental conditions for application by reference to: Temperature Humidity Lighting Ventilation Protection There are sometimes paragraphs related to protection. It is recommended they be located here. They include such paragraphs as: Drop Cloths Removal of Hardware Removal of Flammable Rubbish Smoking Operating Instructions For mechanical and electrical systems there is often a paragraph requiring operating instructions to be given to the building engineer and his representatives and the time limit established for these instructions. Here is the position recommended for such a paragraph. Extra Stock Some sections of specifications require that extra stock be furnished to the owner. Typical paragraphs are entitled:
Spare Parts Extra Tile Extra Wall Covering Resilient Flooring Extra Brick Tools Maintenance Materials Alternates If alternates involve a section it is advisable to add a paragraph even if it only states, “Alternates affect the scope of work in this section; see Section 0170 entitled Alternates.
Measurement and Payment Architectural specifications rarely include paragraphs covering Measurements and Payments but civil engineering specifications often do. It is preferably that this information be discussed in the general conditions and defined by the proposal form. It is properly a contractual-legal matter. However, if the specifier elects to include it in the section it should be placed at the end of part one. PART 2: PRODUCTS Materials The first group of paragraphs under part two should be those describing in detail all materials to be furnished for work within the section. Literally hundreds of example titles could be given. Mixes Many materials before they can be used in the structure have to be mixed together nn certain proportions. Paragraphs describing these mixes should follow the group of paragraphs describing the materials themselves. Whether the mixing is done at the job site or not it was agreed to locate them under part two for two reasons: 1. There is a tendency more and more to mix materials off site.
2. Mixing is, n effect, a manufacturing process preparing materials for use. Examples of paragraph titles used are: Plaster Mixes Concrete Mixes Asphalt Binder Mix
Asphalt Topping Mix Terrazzo Mixes
Equipment Products are not always materials, they are often equipment, fixtures, or devices particularly in sections under divisions 10,111, 13, 14, 15 and 16. The position of this group of paragraphs is also under Part 2: Products. Fabrication Many products are not ready for use until they are fabricated. Paragraphs describing fabrication requirements should be grouped in this location. Paragraphs such as: Fabrication of Structural Steel Fabrication of Reinforcing Steel Fabrication of Doors
Fabrication of Windows Fabrication of Toilet Partitions
Source Quality Control When tests are made of products at the plant, mill, shop or factory paragraphs describing them should occur at the last of part two. Such paragraphs are: Mill Tests Factory Tests
Plant Tests Shop Tests
PART 3: EXECUTION Condition of Surfaces In many sections such as the ones on painting, roofing, vinyl wall covering, resilient flooring, and acoustic treatment, a paragraph is introduced requiring inspection of surfaces to receive materials. Such a statement might be “prior to the work of this section.” It must be ascertained that preceding work has been adequately performed to permit compliance with the quality required by this section. See CSI Doc. 005 and 010 [Refs. 12 and 11] Preparation When surfaces are required to be prepared to receive materials under the section this is the recommended position for paragraphs with titles such as:
Fine Grading (to receive base course of pavement). Treatment of Formwork (to receive concrete) Treatment of Galvanized Surfaces (to receive paint). Treatment of Wood Surfaces (to receive paint). Installation Installation is recommended as the next grouping of paragraph such as: Placing Concrete Laying Brick Framing Floors But the related word application may be better to use for paragraphs such as: Application of Roofing Application of Paint. Application of Vinyl Wall Covering which can be used as subparagraphs under “Installation”. Or the related word workmanship may be better to use for paragraphs such as: Clearing Site General Excavation Footing Excavation Rough Grading Or the related word erection may be better to use for paragraphs such as: Erection of Structural Steel Erection of Bar Joists Erection of Trusses However, these may be subparagraphs under “Installation”.
Field Quality Control It is recommended that paragraphs calling for tests at the site or for material taken form the site for testing should be located in part three. Paragraph titles such as: Soil Compaction Tests Air Content Tests Pile Load Tests Moisture Content Tests Concrete Compression Tests Plumbing Systems Tests Concrete Slump Tests Heating System Tests Adjusting There are paragraphs covering adjusting particularly in sections under Division Nos. 14, 15, and 16, Conveyors, mechanical, and Electrical. It is recommended these requirements be located just before Patching and Cleaning. Patching Patching and/or repair of defects is often required under such sections as Concrete and Plastering. It is recommended these paragraphs be located here near the end of part three Touch up of damaged surfaces should be included here.
Cleaning If more than broomclean, as usually established by the general conditions is required in a section, it is recommended such a paragraph should be located here. Some specification writers with the encouragement of contractors and subcontractors are writing a separate section on cleaning to enable the contractor to sublet it to a janitorial services organization, and can be included under Division 1, General Requirements, Section on Cleaning Up. Schedules Frequently, schedules are placed within the specifications rather than on the drawings. Since the schedules are subject to change until the construction documents are released, it is expedient that they be the last item in the section. Such a schedule must be reference in the appropriated area of the specifications. An example would be a hardware schedule, which would be reference under “Part 2: Products.” Other examples are: Accessories Schedule Hardware Schedule Painting Schedule Plumbing Fixture Schedule Mechanical Equipment Schedule Lighting Fixture Schedule
SECTION 08800 GLAZING PART 1 - GENERAL 1.1 APPLICABLE PUBLICATIONS: The publications listed below form a part this specification to the extent referenced. The publications are referred to in the text by the basic designation only. 1.1.1 Federal Specification (Fed. Spec.): DD-G-451D Glass, Float or Plate, Sheet, Figured, (Flat, for Glazing, (Mirrors and Others Uses) TT-G-410E & Am 1
Glazing Compound, Sash (Metal) For Back Bedding and Face Glazing (Not for Channel or Stop Glazing)
1.1.2 American Society for Testing and Materials (ASTM)Publications: C-920-79 1.1.3
National Fire Protection Association (NFPA) Publication: 80-81
1.1.4
Elastrometric Joint Sealants
Fire Doors and Windows
Flat Glass Marketing Association (FGMA) Publications: 1980
Glazing Manual
1.2 SUBMITTALS: 1.2.1 Shop Drawings: Show complete details of setting methods ad materials for each type of glazing material specified. 1.2.2 Manufacturer’s Data: Include glass manufacturers recommendations for setting and sealing materials for installation of each type of glazing material specified. 1.2.3 Samples: Two, 10 inch square, factory labeled, for each of the following. a. Wire glass - showing mesh configuration and thickness of glass 1.2.4 Certificates of Compliance: Certify of label each product to indicate that materials meet specified requirements. 1.3 DELIVERY AND STORAGE: Deliver products to the site in unopened containers, labeled plainly with manufacturers’ names and brands. Store glass and setting materials in safe, dry locations and do not unpack until needed for installation. Handle and install materials in a manner that will protect them from damage. 1.4 ENVIRONMENTAL CONDITIONS: Do not start glazing work until the outdoor temperature is above 40 degrees F and rising unless approved provisions are made to warm the glass and rabbet surfaces. Provide sufficient ventillation to prevent condensation of moisture on glazing work during installation. Do not perform glazing work during damp or rainy weather. PART 2 - PRODUCTS 2.1 GLASS: Fed. Spec. DD-G-451, unless specified otherwise. 2.1.1 Primary Glass: Type 1, Class 1 (clear), Quality q4 (A). Use double-strength sheet glass or 1/8-inch float glass. Provide for both lights of double-hung
sash, both lights of sliding sash except locker room windows in 01 area which shall have primary glass in inboard light only. 2.1.2 Wire Glass; Clear, polished both sides, ¼ inch thick, square wire. Provide for out-board light of fixed window and vision panels in doors as indicated. 2.1.3 Figure Glass: Type II, Class 1 (translucent), Form 3 (figured), Quality of 7 (decorative), Finish f1 (figured one side), Pattern pl (linear), 1/8-inch thick. Provide in outboard lights of sliding sash of locker room windows in 01 area. 2.2 GLAZING MATERIALS 2.2.1 Glazing Compound: Fed. Spec. TT-G-410. Use for face glazing metal sash as indicated on the drawings. 2.2.2 Elastomeric Sealant: ASTM C 920, Type S or M, Grade NS, Class 12.5, Use NT. Use for channel or stop glazing metal sash. Sealant shall be chemically compatible with setting blocks, edge blocks and sealing tapes. Color of sealant shall be white. 2.2.3 Sealing Tapes: Performed, semisolid, polymeric-based material of proper size and compressibility for the particular condition as indicated on the drawings. Provide spacer shims for use with compressible tapes. 2.2.4 Setting Blocks and Edge Blocks: Lead, or neoprene of 70 to 90 Shore “A” durometer hardness, chemically compatible with sealants used, and of sizes recommended by the glass manufacturer. 2.2.5 Accessories: As required to provide a complete installation, including clips, shims, tape and spacer strips. Provide non-corroding metal accessories. Provide primer-sealers and cleaners as recommended by the glass and sealant manufacturer.
PART 3 - INSTALLATION 3.1 PRECAUTIONS AND PROCEDURES: Determine the sizes to provide the require edge clearances by measuring the actual opening to receive the glass. Leave all labels in place until the installation is approved. Securely fix movable items or keep in closed and locked position until glazing compound has thoroughly set. 3.2 GLASS SETTING: Items to be glazed shall be either shop or field glazed using glass of the quality and thickness specified or indicated. Preparation and glazing, unless other wise specified or approved, shall conform to applicable recommendations in the FGMA Glazing Manuals. Aluminum windows, may be glazed in conformance with
one of the glazing methods described in the standards which they are produced and as indicated on the drawings. Handle and install glazing materials in accordance with the manufacturers instructions. Use stops which are furnished with to be glazed to secure the glass in place. 3.2. 1 Sheet Glass: Cut and set with the visible lines or waves horizontal. 3.3. 2 Wire glass: Install glass for fire doors in accordance with installation requirements of NFPA 80. 3.4. 3 Figured Glass: Set glass with smooth surface on the weather side. 3.3 CLEANING: Thoroughly clean glass surfaces and remove labels, paint, sport, putty, and other defacement. Glass shall be clean at the time the work is accepted. SECTION 0916 - PLASTERING PART 1: GENERAL 1-01 S C O P E : a. Related Work Specified Elsewhere 1. Furring and Lathing; Section 0911. 2. Plaster and Fireproofing; Section 0916.1. 3. Solid Plaster Partitions; Section 0914. 4. Acoustical Plaster; Section 0918. 5. Dry wall construction; Section 0918. 6. Plastering Accessories; Section 0915. PART 2 : PRODUCTS 2-01 MATERIALS a. Hydrated Lime: ASTM C 206-49, if required by manufacturer, lime shall be allowed to soak for 24 hour before use. If necessary to obtain a fine textured putty, mix lime with water and screen through a sleve. b. Gypsum Plaster: ASTM C 28-66 c. Sand: ASTM C 35-67 d. Portland Cement: ASTM C 35-67 e. Vermiculite: ASTM C 35-67 f. Water shall be clean and free from deleterious substances. g. Temporary grounds shall be provided, 5/8 inch thick for mansonry surfaces and ¾ inch thick for metal lath surfaces. 2-02 MIXES: a. Gypsum Plaster shall be mixed as follows by volume (one 100-lb. Bag equals 1 part gypsum plaster, and 7 No. 2 shovelful equal to 1 part damp loose sand):
1. Scratch Coat (1st coat), on surfaces not otherwise specified: 1 part gypsum neat plaster (fiber or unfibered) 2 parts sand 2. Base Coat for two coat work: 1 part gypsum neat plaster 2 ½ part sand 3. Brown Coat (2nd coat) for three-coat work and Scratch Coat on masonry: 1 part neat gypsum neat plaster 3 parts sand 4. Finish Coat shall be lime putty and gypsum plaster applied to brown coat, by volume: 3 parts lime 1 parts gypsum gauging plaster b. Portland Cement Plaster and Stucco: All three oats shall be mixed by volume as follows: 1 part portland cement 3 parts sand ¼ part lime putty for cement plaster and 1/10 part for stucco For scratch coat on metal lath, 1lb. Of hair or fiber shall be added per sack of cement. c. Gypsum Vermiculite Plaster shall be mixed as follows: 1. Scratch Coat (1st coat) on surfaces not otherwise specified: 100 lbs. Of gypsum fibered plaster 2 cu.ft. of vermiculite 2. Brown Coat (2nd coat) in all three-coat work and scratch coat on masonry surfaces: 100 lbs. Of gypsum fibered plaster 3 cu.ft. of vermiculite 3. Finish Coat shall be lime putty and gypsum plaster smooth hard finish.
PART 3: EXECUTION 3-01 INSTALLATION: a. Application of Gypsum Plaster, shall be to surfaces where Finish Schedule calls for “Plaster”, Scratch coat and brown coat shall be applied to ceilings where Finish Schedule calls for “Acoustical Plaster” to serve as a base to
receive the sprayed on acoustical plaster. Apply gypsum plaster in three coats. Brown coat may be applied over scratch coat better it has hardened when applied over rigid base. 1. Scratch Coat: Apply with sufficient force and material to form good full keys or bond. Allow to harden then scratch to produce a rough surface. 2. Brown Coat: apply over scratch coat and rod darby to produce true plane surfaces flush with grounds leave brown coat rough, ready to receive finish coat. 3. Finish Coat: Do not apply until brown coat is thoroughly dry. Dampen surface brown coat before applying finish. Apply finish to cover brown coat completely with no noticeable joints or ridges, allow finish to draw for a few minutes, then steel troweled to a smooth, hard, even surface. b. Application of Cement Plaster of Stucco shall be in two coats back of the wainscoting’s and three coats for stucco work on outside of building and in smoke towers. 1. Scratch Coat: Apply with sufficient force and material to form full keys or bond. Cross scratch as soon as scratch coat has attained its initial set, and apply brown coat as soon as practicable. 2. Brown Coat: Scratch or broom for bond of finish coat and allow to set hard. Keep brown coat moist until finish coat is applied. 3. Finish Coat: Bring to true, even surfaces with rods darbies and trowel smooth, leaving finished surface free from tool marks and blemishes. Keep cement plaster moist for a least 3 days and protect against rapid drying until cured. c. Cement Plaster, 1-1/2 inches thick, shall be provided for secondary beams where they pass through the Smoke Shaft under the Passageways. Over the lath apply cement plaster in three coats giving the last coat a sand float finish. d. Application of Gypsum-Vermiculite Plaster to surfaces where finish schedule calls for gypsum-vermiculite plaster shall be the same as specified above for Gypsum Plaster. Gypsum-vermiculite plaster may be substituted, at Contractor’s option, for gypsum plaster scratch and brown coats. 3-02 PATCHING: a. Patch plaster following work of other trades. SUBJECT
:
SPECIFICATIONS
OWNER
:
MR. and MRS. JOHNNY BALANGCOD
ADDRESS
:
NO. 69 CLAMOR STREET SUYAT GARDENS, BAGUIO CITY
PROJECT
:
TWO-STOREY RESIDENCE
LOCATION
:
NO. 2 ASSUMPTION ROAD BAGUIO CITY
ARCHITECT LICENSE NO. PTR ADDRESS
: : : :
GEORGE S. SALVAN 1939 NO. 30 MABINI STREET BAGUIO CITY
OUTLINE SPECIFICATIONS I. SITE WORK A. WORK INCLUDED 1. Staking out of building, establishment of lines, grades and benchmarks. 2. All excavation work including all necessary shoring bracing, and drainage of storm water from site. 3. All backfilling, filling and grading, removal of excess material from site. 4. Protection of Property, work and structures, workmen, and other people from damage and injury. B. LINES, GRADES AND BEMCHMARKS 1. Stake out accurately the lines of the building and of the other structures included in the contract, and establish grades therefore, after which secure approval by Architect before any excavation work is commenced. 2. Erect basic better boards and basic reference marks, at such places where they will not be disturbed during the construction of the foundations.
C. EXCAVATION
1. Structural Excavations - Excavations shall be to the depths indicated bearing values. Excavations for footings and foundations carried below required depths shall be filled with concrete, and bottom of such shall be level. All structural excavations shall extend a sufficient distance from the walls and footings to allow for proper erection and dismantling of forms, for installation of service and for inspection. All excavations shall be inspected and approved before pouring any concrete, laying underground services for placing select fill materials. The Contractor shall control the grading in the vicinity of all excavated areas to prevent surface drainage running into excavations. Water which accumulates in excavated areas shall be removed by pumping before fill or concrete is placed therein. D. FILLING AND BACKFILLING 1. After forms have been removed from footings, piers, foundations, walls, etc. and when concrete work is hard enough to resist pressure resulting from fill, backfilling may then be done. Materials excavated may be used for backfilling. All filling shall be placed in layers not exceeding six (6) inches in thickness, each layer being thoroughly compacted and rammed by wetting, tamping , rolling. E. PLACING AND COMPACTING FILL 1. Common Fill - shall be approved site - excavated material free from roots, stumps and other perishable or objectionable matter. 2. Select Fill - shall be placed where indicated and shall consist of crushed gravel crushed rock, or a combination thereof. The material shall be free from adobe, vegetable matters and shall be thoroughly tamped after placing. 3. Before placing fill material, the surface upon which it will be placed shall be cleared of all brush roots, vegetable matter and debris, sacrified and thoroughly wetted to insure good bonding between the ground. F. DISPOSAL OF SURPLUS MATERIALS 1. Any excess material remaining after completion of the earthwork shall be disposed of by hauling and spreading in nearby spoil areas designated by the OWNER. Excavated material deposited in spoil areas shall be Grade to a uniform surface. II. CONCRETE AND REINFORCED CONCRETE: A. GENERAL
1. Unless otherwise specified herein, concrete work shall conform to the requirements of the ACI Building Code. Full cooperation shall be given other trades to install embedded items. Provisions shall be made for setting items not placed in the forms. Before concrete is placed, embedded items shall have been inspected and tested for concrete aggregates and other materials shall have been done. B. MATERIALS 1. Cements for the concrete shall conform to the requirements of specifications for Portland Cement (ASTM C-150) 2. Water used in mixing concrete shall be clean and free from other injurious amount of oils, acids, alkaline, organic materials or other substances that may de deleterious to concrete or steel. 3. Fine Aggregates shall consist of hard, tough, durable, uncoated particles. The shape of the particles shall be generally rounded or cubicle and reasonably free from flat or elongated particles. The stipulated percentages of fines in the sand shall be obtained either by the processing of natural sand or by the production of a suitably graded manufactured sand. 4. Course Aggregate shall consist of gravel, crushed gravel or rock, or a combination of gravel and rock, course aggregates shall consists of hard, though, durable, clean and uncoated particles. The sizes of course aggregates to be used in the various parts of the work shall be in accordance with the following: Size - ¾” for all concreting work. 5. Reinforcing Bars shall conform to the requirements of ASTM standard specifications for Billet Steel Bars for concrete reinforcement (A 15-625) and to Specification for minimum requirements for the deformed steel bars for concrete reinforcement (A 305-56) All secondary ties such as stirrups, spirals and inserts may be plain bars. The main reinforcing bars shall be as follows: No. 4 (1/2”) 12mm No. 3 (3/8”) 10mm No. 5 (5/8”) 16mm No. 6 (3/8”) 20mm No. 7 (7/8”) 22mm No. 8 (1”) 25mm
fy - 33,000 psi fy - 40,000 psi
C. PROPORTIONING AND MIXING 1. Proportions of all materials entering into the concrete shall be as follows: Class “A”
-
Cement 1
: :
Sand 2
: :
Gravel 4
Class “B” Class “C”
-
1 1
: :
21/2 : 3 :
5 6
2. Class of Concrete - concrete shall be machine mixed. Mixing shall begin within 30 minutes after the cement has been added to the aggregates. In the absence of a concrete mixer, Manual mixing is allowed. 3. Mixing - concrete shall be machine mixed. Mixing shall begin within 30 minutes after the cement has been added to the aggregates. In the absence of a concrete mixer, Manual mixing is allowed. D. FORMS 1. GENERAL - Forms shall be used wherever necessary to confine the concrete and shape it to the required lines, or to insure the concrete of contamination with materials caving from adjacent, excavated surfaces. Forms shall have sufficient strength to withstand the pressure resulting from placement and vibrating of the concrete, and shall be maintained rigidly in correct position. Forms shall be sufficiently fight to prevent loss of mortar from the concrete. Forms for exposed surfaces against which backfill is not be placed shall be lines with a form grade Plywood. 2. Cleaning and oiling of Forms - Before placing the concrete, the contact surfaces of the form shall be cleansed of encrustation’s of mortar, the grout or other foreign material, and shall be performed at once and airing shall be started as soon as the surface is sufficiently hard to permit it without further damage. 3. Removal of Forms - forms shall be removed in a manner which will prevent damage to the concrete. Form shall not be removed without approval. Any repairs of surface imperfections shall be performed at once and airing shall be started as soon as the surface is sufficiently hard to permit it without further damage. E. PLACING REINFORCEMENT 1. GENERAL - Steel reinforcement shall be provided as indicated, together with all necessary wire ties, chairs, spacers, supported and other devices necessary to install and secure the reinforcement properly. All reinforcement, when placed, shall be free from loose, flaky rust an scale, oil grease, clay and other coating and foreign substances that would reduce or destroy its bond with concrete. Reinforcement shall be placed accurately and secured in place by use of metal or concrete supports, spacers and ties. Such supports shall be of sufficient strength to maintain the operation. The supports shall be used in such manner that they will not be exposed or contribute in any way, to the discoloration or deterioration of the concrete. F. CONVEYING AND PLACING CONCRETE:
1. Conveying - concrete shall be conveyed from mixer to forms as rapidly as practicable, by methods which will prevent segregation, or loss of ingredients. There will be no vertical drop greater than 1.5 meters except where suitable equipment is provided to prevent segregation and where specifically authorized. 2. PLACING - Concrete shall be worked readily into the corners and angles of the forms and around all reinforcement and embedded items without permitting the material to segregate. Concrete shall be deposited as close a possible to its final position in the forms so that flow within the mass does not exceed two (2) meters and consequent segregation is reduced to a minimum near forms or embedded items, or elsewhere as directed, the discharge shall be so controlled that the concrete may be effectively compacted into horizontal layer not exceeding 30 centimeters in depth within the maximum lateral movement specified. 3. Time interval between mixing and placing. Concrete shall be placed before initial set has occured and before it has contained its water content for more than 45 minutes. 4. Consolidation of Concrete - Concrete shall be consolidated with the aid of mechanical vibrating equipment and supplemented by handspading and tamping. Vibrators shall not be inserted into lower coursed that have commenced initial set; and reinforcement embedded in concrete beginning to set or already set shall not be disturbed by vibrators. Consolidation around major embedded parts shall be by hand spading and tamping and vibrations shall not be used. 5. Placing concrete through reinforcement. In placing concrete through reinforcement, care shall be taken that no segregation of the coarse aggregate occurs. On the bottom of beams and slabs, where the congestion of steel near the forms makes placing difficult, a layer of mortar of the same cement-sand ratios as used in concrete shall be first deposited to cover the surface. G. CURING: 1. GENERAL: All concrete shall be moist cure for a period not less than seven (7) consecutive days by an approved method or combination applicable to local conditions. 2. Moist Curing - The surface of the concrete shall be kept continuously wet by covering with burlap plastic or other approved materials thoroughly saturated with water and keeping the covering wet spraying or intermittent hosing. H. FINISHING 1. Concrete surfaces shall not be plastered unless otherwise indicated. Exposed concrete surfaces shall be formed with plywood, and after removal of forms, the surfaces shall be smooth, true to line and shall present or finished appearance except for minor defects which can be easily be repaired with
patching with cement mortar, or can be grounded to a smooth surface to remove all joint marks of the form work. 2. Concrete slabs on Fill. The concrete slabs on fill shall be laid on a prepared foundation consisting of subgrade and granular fill with thickness equal to the thickness of overlaying slab except as indicated otherwise. III. MASONRY WORKS A. MATERIALS 1. Concrete Hollow Blocks shall have a minimum face shall thickness of 1” (.025) Nominal size shall be 6” x8” x 16” and 4” x8” x16” minimum compressive strength shall be as follows: Class A - 900 psi Class B - 750 psi All unit shall be stoned for a period of not less than 28 days (including curing period) and shall not be delivered to the job site prior to that time unless the strengths equal or exceed those mentioned in these specifications. 2. Wall Reinforcement shall be No. 3 (3/8”) or 10 mm steel bars. 3. Sand shall be river sand, wee screened, clean, hard, sharp sillicious, free from loam, sit or other impurities, composed of grains of varying sizes within the following limits: Steve No. 9 16 100
Percent Passing Retained Retained
100 5 97
4. Cement shall be standard portland cement, ASTM C - 150-68 Type 1 5. Mortar - Mix Mortar from 3 to 5 minutes in such quantities as needed for immediate use. Retempering will not be permitted if mortar stiffens because of premature setting. Discard such materials as well as those which have not been used within one hour after mixing. Proportioning: Cement mortar shall be one (1) part portland cement and two (2) parts sand by volume but not more than one (1) part portland cement and three (3) parts sand by volume. B. ERECTION 1. All masonry shall be laid plumb, true to line, with level and accurately spaced courses, and with each course breaking joint with the source below. Bond
shall be kept plumb throughout; corners and reveals shall be plumb and true. Units with greater than 12 percent absorption shall be wet before laying. Work required to be built n with masonry, including anchors, wall plugs and accessories, shall be built in as the erection progresses. 2. Masonry Units. Each course shall be solidly bedded in portland cement mortar. All units shall be damp when laid units shall be showed into place not laid, in a full bed of unfurrowed mortar. All horizontal an vertical points shall be completely filled with mortar when and as laid. Each course shall be bonded at corners and intersections. No cells shall be left open in face surfaces. All cells shall be filled up with mortar for exterior walls. Unit terminating against beam or slab softfits shall be wedged tight with mortar. Do not lay cracked, broken or defaced block. 3. Lintels shall be of concrete and shall be enforced as shown on the drawings. Lintels shall have a minimum depth of 0.20 (8”) and shall extend at least 0.20 (8”) on each side of opening.
C. WORKMANSHIP AND INSTALLATION: 1. PLASTERING: Clean and evenly wet surfaces. Apply scratch coat upon attaining its initial set; keep damp. Apply brown coat after scratch coat has set at least 24 hours after scratch coat application. Lightly scratch brown coat; keep moist for 2 days; allow to dry out. Do not apply finish until brown coat has seasoned for 7 days. Just before applying coat, wet brown coat again. Float finish coat to true even surface; trowel in manner that will force sand particles down into plaster, with final trowling, leave surfaces barnished smooth, free from rough areas, trowel marks, checks, other blemishes. Keep finish coat moist for at least 2 days; thereafter protect against rapid drying until properly, thoroughly cured. 2. PEA GRAVEL WASHOUT: Before start of work, provide desired pitch for drainage. Roughen concrete surface with pick or similar tool. Clean of loose particles and other materials which may prevent bond, keep surface wet for at lest 4 hours before applying. Scratch coat of mortar. Coat not more than ¾” thick. Apply mixture of pea gravel to hard, smooth, even plane and rod and float to uniform surface of even texture. When surface is semi-dry evenly spray surfaces with clean water with and wash down remaining cement paste with soft brush, to leave pea gravel in its natural texture and appearance. Before applying pea gravel finish, submit samples to owner for approval. D. SCAFFOLDING
Provide all scaffolding required for masonry work, including cleaning down on completion, remove. E. VITRIFIED FLOOR TILE INSTALLTION: 1. Do not start floor tiling occurring in space requiring both floor and wall tile setting has been completed. 2. Before spreading setting bed, establish border lines center line outward. Make adjustment at walls. 3. Clean concrete sub floor and moisten it without soaking. Sprinkle dry cement over surface. Spread setting bed mortar on concrete and tamp to assure good bond over the entire area then screed to smooth, level bed. Set average setting bed thickness at ¾” but never less than ½”. F. WALL TILE INSTALLATION 1. Scratch coat for application as foundation coat shall be at most ½”. While still plastic, deeply score scratch coat or scratch and cross scratch. Protect scratch coat and keep reasonably mioist within seasoning period. Use mortar for scratch, float coats, within one hour after mixing. Retempering of partially hardened mortar is not permitted. Set scratch coat shall be cured for at least 2 days before starting tile setting. 2. For float coat use one part portland cement, one part hydrated lime (optional), 3-1/2 parts sand. IV. CARPENTRY AND JOINERY WORK A. MATERIALS 1. QUALITY OF LUMBER: Lumber shall be the approved quality of the respective kinds for the various parts of the work, well seasoned, thoroughly dry, and free from large, loose, or unsound knots, sups, shakes, and other imperfections impairing its strength, durability or appearance. All finishing lumber to be used shall be completely dried and shall not contain more than 14% moisture. All flooring, tongue and grooved shall be kiln dried. 2. TREATMENT OF THE LUMBER: a. All concealed lumber shall be sprayed with anti-anay or bukbok liquid. b. Surface in contract with masonry and concrete coated with creosote or equivalent. 3. DOOR SASHES: All door sashes shall be well seasoned, flush type, semihollow core and solid core, tanguile plywood veneers on both sides. Exterior doors shall be of kiln dried Tanguile panel doors.
4. KIND OF LUMBER: All unexposed lumber for framings shall be of Apitong. All window and door jambs shall be of Apitong or Tanguile. Balcony railings, flooring, girder and joints shall be of S4S Yacal. All interior flooring shall be of Kiln dried T and G Tanguile Living room wood panels at the second floor shall be of 1” thick pinewood Eaves shall be of kiln dried T and G Tanguile S4S. Exterior sidings shall be seasoned sun dried V-Cut Tanguile. B. WORKMANSHIP 1. Execute rough carpentry in best, substantial, workmen like manner. Erect framing true to line, levels and dimensions, squared, alighed, plumbed, wellspliced and nailed, and adequately braced, properly fitted using nortise and tenon joists. 2. Millwork - accurately milled to details, clean cut moldings profiles, lines, scrape, sand smooth; mortise, tenon, splice, join, block, nail screw, bolt together, as approved, in manner to allow free play of panels; avoid swelling, shrinkage, ensure work remaining in place without warping, splitting opening or joints. Do not install mill work and case until concrete and masonry work have been cured and will not release moisture harmful to woodwork. 3. Secure work to grounds, otherwise fasten in position to hold correct surfaces, lines and levels. Make finished work flat, plumb, true.
V. ARCHITECTURAL FINISHES SCHEDULE A. FLOORING 1. All interior flooring shall be 1” x 4” tongue and groove (T & G Tanguile,kiln dried.) 2. Toilet floors shall be vitrified 4-1/4” x 4-1/4” white or beige in color, mariwasa brand. 3. Balcony floors shall be of 1”x 4” Yacal set on a ¼” open joint and nailed on Yacal Floor joist. All balcony railings shall be Yacal. 4. Concrete Floor fronting the street shall be finished with 12” x 12” Vigan tiles with black pebble washout as border all around. B. WALLING: 1. All interior partitions shall be of ¼” x 4’ x 8’ plywood. Joints of partitions shall have a V-cut Joint. 2. Interior paneling of second floor living room shall be 1” x 8” pine wood: 3. Exterior walling shall be 1” x 6” V-cut tanguile. 4. CHB Walling shall be plastered and lined with ¼” nail strip.
5. Toilet wall finish shall be of 4-1/4” x 4-1/4” white glazed tiles. C. CEILINGS: 1. All interior ceilings shall be of ¼” x 4’ x 8’ plywood with mouldings. 2. Outside ceiling eaves shall be of 1” x 4” T and G Kilm dried tanguile, with air Vents covered with screen. D. DOORS: 1. All interior, bedroom doors shall be hollow core flushed door using plywood venner. 2. All toilet doors shall have one side using waterproofed plywood facing inside. Bring float coat flush with screeds or temporary guide strips placed to give true and even surface at proper distance from the tile finished face. 3. Setting Wall Tiles: seals wall tile thoroughly in clean water before setting. Set wall tile by trowelling neat portland cement skim coat on float coat or apply skim coat to back of each tile unit. Immediately float tile in place. Make joints straight, level and perpendicular. Maintain vertical joints plumb. 4. Grouting: Grout joints in wall tile with neat white cement immediately after suitable area of tile has been set. Tool joints slightly concave, suit off excess mortar and wipe from face tile. Toughen interstices of depressions. In mortar joints after grout has been cleaned from surface. Fill to line of cushion tile bases or covers with mortar. Make joints between wall tile, plumbering and other built in fixtures with light colored caulking. Immediately after grout has had its initial set, give tile wall surfaces protective coat of non-corrosive soap. 5. All exterior doors shall be solid panel doors. E. WINDOWS: 1. All windows shall be steel windows casement and awning type with simple ½” square wrought iron railings and secured with screen. 2. Other windows as indicated in the plan shall be glass jalousie. 3. Glass and glazing: All windows shall be glazed on the outside with steel casement putty. Glass shall be puttied and face-puttied in neat trim line manner, with steel glazing chips. Use 3/16” thick clear glass. 4. Provide louvers below the ceiling and wall partition of bedrooms without exterior window access. F. FINISHING HARDWARES: 1. Butt Hinges - unless otherwise approved, Use brass, polished and finely finished, mortise ball bearing 5 knuckles, non rising loose pins as manufactured by Stanley or corbin for all interior wood doors.
Use one and one-half pairs (3 pcs.) of hinges per leaf of doors more than 1.80 m high, loose pin butt for room doors, fixed pin butt for closets. G. LOCKSETS: 1. Cylindrical locks - all interior doors shall be equipped with high grade heavy or standard duty (as required) cylindrical locksets. The mechanism shall be heavy gauge, cold rolled contained in sturdy cylindrical housing with all parts zinc plate and dichromated for maximum resistance against rust and corrosion. Exposed parts shall be brass heavily plated as manufactured by schlage, yale or approved equivalent. 2. Keying and Keys - locks shall be keyed in sets and sub sets to provide maximum expansion. All sets shall be grand master keyed, and all entrance locks shall be great grand master keyed per unit. H. RIM BOLT - Rim bolts and keeper shall be chrome finish. I. DOOR BUMPERS - where wooden doors shall strike an object during opening, provide door bumpers. J. Cabinet hinges shall “Washington” type or piano hinges heavily chrome or nickel plated. K. Cabinet and Closet catches shall be plastic roller types. L. Provide Yale door closers for swing exterior doors. M. Provide heavy-duty head and foot bolt for the three (3) main entrance doors.
VI. ROOFING AND TINSMITHING WORKS
A. MATERIALS: 1. ROOFING SHEATHING - shall be corrugated galvanized Iron sheet gauge 26. 2. Gutters downspouts ad Flashings shall be of guage 26 plain G.I. sheets. B. INSTALLATION WORKMANSHIP: 1. Sheathing - layout the roofing sheets in a manner that the side overlap faces away from the prevailing wind. Provide not less than 0.30 m overlap on ends and not less than 1/1/2 corrugation on side laps on both sides. Secure the roofing sheets to purlins by using G.I. rivets and 1” wide G.I. Ties.
2. Gutter - connection of gutters shall be made by using brass rivets and fully jointed by nikolite lead. Provide a minimum of 1% slope towards the downspouts. 3. Downspouts - shall be 2 x 4” plain G.I. sheets or colored pvc pipe as approved by the Architect. 4. Flashing - shall be plain G.I. sheet over corrugated roofing of not less than 0.30 overlap extend G.I. Flashing until it covers the top portion of the firewall. VII. PLUMBING WORKS: A. GENERAL: 1. All work shall be done under the direct supervision of a licensed plumber and in strict accordance with these specification and of the methods as prescribed by the National Plumbing Code of the Philippines. B. MATERIALS: 1. Cast iron soil pipe for sewer and cement drainage pipes T and G ASTM C-14 and ASTM-75 respectively. 2. Cast iron sewer pipes and fittings – ASTM A-74 for soil, waste and vent pipes. 3. Caulking Lead - Federal spec. QQ-56 or epoxy mix A and B. 4. Bronze gate values - Federal spec. WW-V-58. 5. Galavanized iron pipes and fittings - Schedule 40 for all hot and cold water lines. 6. Water Closet - Saniwares brand. All toilets shall be of ventura model or compton except the second floor owners toilet which shall be salernina or cadet type. Vitreous china “price Pfister” angle valves. White in color. 7. Lavatories - Saniwares Ventura and Diana (or new comrade) vitreous China, complete with all chromard finish “price pfistor. Fittings and accessories. 8. Kitchen Sink - Northern Hill Classic cast iron acid - resisting enamelled finish inside. With back complete with chromard finish U.S. fittings and accessories. 9. Soap and Tissue holder - Vitreous China 10. Towel bars and hooks, - brass chrome plated. 11. Drains: Floor drains shall be high grade strong , tough and even-grained metals with adjustable screwed cover nickel plated. 12. Shower head and Valve a. For owner’s toilet, use P.F. with “marquis” 3-valve divester. b. For other toilets - use shower head with plastic, and 2 - valve divester. C. ALTERNATE MATERIALS:
1. Alternate material allowed, provided such alternated is approved by Architect such as PVC pipes for sewer and drainage pipes. 2. Each length of pipe, fitting, trap, fixture and device used in plumbing system shall have cast, stamped or indelibly marked on it, manufacturer’s trademark or name weight, type and classes or product when so required. D. INSTALLATION 1. Install plumbing fixtures free and open to afford easy access for cleaning. 2. Install plumbing fixtures as indicated on drawings, furnishings all brackets, cleats, plates and anchors required to support fixtures rigidly in place. 3. Install all fixtures and accessories in locations directed in accordance with manufacturer’s instructions, minimizing pipe fittings. 4. Protect items with approval means to maintain perfect conditions. Remove work damaged or defective and replace with perfect work without extra cost to OWNER. 5. All G.I. soil and drainage pipes shall have a minimum slope of 1%. 6. Vertical pipes shall be secured strongly by hooks to building framing. Provide suitable bracket or chairs at the floors from which they start. Where an end or circuit vent pipe from any fixtures or line of fixtures is connected to a vent line serving other fixtures, connection shall be at least four (4) feet 1.20 M above floor on which fixtures are located, to prevent use of any vent line as a waste. Horizontal pipes shall be supported by well secured strap hangers. 7. Connection of water closets to soil pipes shall be made by means of flanged Plates and asbestos packing without use of rubber putty or cement. 8. Make all joints air and water-tight; for jointing pipes, the following shall be used. a. For bell and spigot jointed cast iron and waste pipes, caulk with oakum or jute and soft pig lead. b. Lead to cast iron pipes use brass ferrule wiped on lead side and caulked into ball of cast iron soil pipe. c. Concrete pipes: bell and spigot or tongue and groove use yarning material and cement mortar. d. G.I. pipes - Use Teflon Tape or white lead when tightening threaded joints. E. ROUGH-IN 1. Provide correctly located opening of proper sizes where required in walls and floors for passed of pipes.
2. All items to be embedded in concrete shall be thoroughly clean and free from all rust, scale and paint. 3. All changes in pipe sizes on soil, wash and drain lines shall be provided with reducing fittings or recesses reducers. For changes in pipe sizes provide reducing fittings. 4. High corrosive nature ground within site shall be taken into account by plumber. Protective features shall be installed to prevent corrosion of all water pipes installed underground. 5. Extend piping to all fixtures, outlets and equipment from gate valves installed in the branch near the riser. 6. Care shall be taken as not to weaker structural portion of the building. VIII. ELECTRICAL WORKS A. SCOPE OF WORK: 1. The work consist of furnishing of all materials and labor, tolls and equipment and all necessary services to complete the electrical work ready for operation as shown in the drawings and specified as follows: a. Supply and installation of the main and sub-feeders from electrical panel-boards up to service entrance. b. Supply and installation of electrical panel boards, gutters, pull box and accessories box as required. c. Supply of wiring devices porcelain receptacles, outlets, switches, etc. complete with suitable cover plates as per specifications. d. Supply and installation for all branch feeders circuits from panel boards up to all outlets, switches, controls or other loads; other wiring as show in plan. e. Installation of all owners furnished materials such as lightings fixtures and electrical control. f. Grounding system as per EE Code requirements. g. The contractor shall secure and pay for all electrical installation fees and permits, but Owner shall pay for the necessary deposit. B. CODES AND REGULATIONS: The Electrical work shall be done in accordance with all the requirements of the latest issue Philippine Electrical Code, with rules and regulations and Ordinances of the local enforcing authorities of Baguio City and the Requirement of the Local Power Company.
C. DRAWINGS AND SPECIFICATIONS:
1. All installation shall be done in a work-manlike manner and shall included all necessary works that may not be clearly indicated in the plans or schematic but necessary to attain the purpose or intent of the design scheme. 2. The plan indicate the general layout of the system and the location of outlets are diagrammatic, and may be adjusted as required by the Architect before installation. 3. The contractor shall record all accomplishments as work progresses in a set of records plan. Three (3) sets of as built drawings shall be duly signed and sealed by the supervisor-in-charge of construction shall be submitted for the owners and Architect’s references and maintenance purposes. D. MATERIALS & WORKMANSHIP: All materials to be supplied shall be new and of high quality suitable for the location and purpose. Materials shall be standard products of reputable manufacturers. E. TECHNICAL SPECIFICATIONS: 1. Power service: 115/230 volts, single phase, 3 wire solid neutral 6 hertz. 2. Wiring methods: all power and control wiring shall be in rigid mild steel conductor. 3. Grounding: Panelboards, raceways, gutters, metallic conduits and other non-current carrying metal parts of equipment, heaters, motor frames, shall be provided with effective grounding connection to a grounded cold center pipe. 4. Main and Branch Feeders: Conductors and complete conduit systems shall be provided as shown in drawings and no change, in sizes shall be made without approval by the Architect or his authorized representative. 5. Panel Board: Furnish and installs the electrical panel-boards as shown in plan. Disconnect switches and magnetic starters shall be provided by motor equipment supplier. 6. Receptacles, switches, Outlets: a. Provide as indicated in drawings, the switches and receptacles with proper cover plates. Switches shall be of the quiet-matic type, “NATIONAL” or approved equal.
b. Receptacles shall be duplex with proper cover plates, rated 10 amp. Min. 250 V.A.C., “Eagle” or approved equal. c. Lighting outlet at ceiling shall be provided with 4” octagonal box ga. 18 min. Connections from fixtures to boxes be made by using TW wire CHB in flexible conduit. 7. Light Fixtures: a. All lighting fixtures shall be furnished by owner and installed by the Contractor. Detail of fixture design when not standard shall be shown in the Architectural Drawings. b. Flourescent fixtures if any shall be complete set with lamps and ballast of high quality, Philips G.E. Philec or approved equal. 8. Wire and Cables: a. Wires shall be Phelp Dodge, duraflex, Far East Wires or approved equivalent. b. No wires shall be drawn into a raceway until it is complete with all necessary fittings, boxes supports. Connections shall be securely fastened such as not to loosen under vibration and normal strain. All connections, splices shall be made with approved methods. IX. PAINTING WORK: A. SCOPE OF WORK 1. Consists of furnishing all items, articles, materials tools, equipment, labor scaffoldings, ladders, methods and other incidentals necessary and required for the satisfactory completion of the work. 2. It covers complete painting and finishing of wood, plasters, concrete, metal or other surfaces exterior or interior of building. B. GENERAL PAINTING and Surface Finishing shall be interpreted to mean and included sealers, primers filler, intermediate and finish coats, emulsions, varnish, shellac, stain or enamels. 1. All paint and accessory materials incorporated in or forming a part thereof shall be subject to the prior approval and selection for color, tint, finish or shade by the Architect. 2. In connection with the Architect’s determination of color or tint of any particular surface, the depth of any color or tint selected or required shall in no instance be a subject for an additional cost to the owner.
3. Painting of all surfaces, except as otherwise specified shall be three (3) coat work, one primer and a finish coat. C. MATERIALS:
1. All paint materials shall meet the requirements of paint materials under classification class “A” as prepared by the institute of Science, Manila, use “BOYSEN” or “Fuller Paints or equivalent. 2. All paints shall be recommended by the manufacturer for the use intended and shall be delivered to the jobsite in original containers with seals unbroken and labels intact. 3. Painting materials such as Linseed oil, turpentine, thinners, shellac, lacquer, etc. shall be pure and of the highest quality obtainable and shall bear the manufacturer’s label on each container or package. 4. Except for ready mixed materials in original containers, all mixing shall be done in the jobsite. No materials are to be reduced, changed or mixed except as specified by manufacturer of said materials. 5. Storage and Protection The resident Architect shall designate a place for the storage of paint materials whenever it may be necessary to change this designated storage place, the contractor shall promptly more to the new location. The storage space shall be adequate protected from damage and paint. Paint shall be covered at all times and safeguards taken to prevent fire. D. MATERIALS: 1. All surfaces to be painted shall be examined carefully before beginning any work and see that all work of other trades or subcontractor’s are installed in workmanlike condition to receive paint, stain or particular finish. 2. Before proceeding with any painting or finishing, thoroughly clean, sand, and seal if necessary by removing from all surfaces all dust, dirt, grease, or other foreign substances which would affect either the satisfactory execution or permanency of the work. Such cleaning of shall be done after the general cleaning executed under the separate division of the work. 3. No work shall be done under conditions that are unsuitable for the production of road results, not at any time when the plastering is in progress or is being cured, or not dry. 4. Only skilled painters shall be employed in the works. All workmanship shall be executed in accordance with the best acceptable practices.
5. Finished hardware, lighting fixtures, plates and other similar items shall be removed by workmen skilled in these trades, or otherwise protected during painting operations and reposition upon completion of each space. 6. Neither paint nor any other finish treatment shall be applied over wet or damp surfaces. Allow at least two (2) days from drying preceeding coat before applying succeeding coat. 7. Begin work only when resident Architect has inspected and approved prepared surface otherwise no credit for coat applied shall be given. The contractor shall assume responsibility to recoat work in question. Notify Architect when particular coat applied is complete, ready for inspection and approval. E. PREPARATION OF SURFACES: 1. For bricks, concrete, cement or concrete blocks; cut out scratches, cracks abrasion in plaster surfaces, openings and adjoining trim as required. Fill flush adjoining plaster surface. When dry; and smooth and seal before priming coat application. 2. Tint plaster priming coat to approximate shade of final coat. Touch up sanction spots in plaster or cement after first coat application, before applying second coat, to produce even result in finish coat. Secure color schedules for rooms before priming walls. 3. In cases of presence of high alkati conditions, neutralize surfaces by washing with zinc sulphate solution (3 pounds to a gallon of water). Allow to dry thoroughly, brush free of crystals before priming. 4. Prime with mixture of equal parts by volume of L & S Portland cement paint ad 5244 improved Alkali proof seal or its equivalent as may be approved by the Architect. 5. Brush one or more finish coats of L & S thinned if necessary with minerals spirits or turpentine. F. WOODWORK TO BE PAINTED: 1. Touch up knots, pitch, streaks, sappy spots with shellac. 2. Do necessary puttying of nail holes, cracks etc. after first coat with putty of color to match that of finish. Bring putty with adjoining surface in neat, workmanlike manner. 3. Wipe paste wood fillers, applied in open grain wood, when “set”, across wood grain. Then with grain to secure clean surface. 4. Cover surfaces to be stained with uniform stain coat. 5. Tiny undercoats of paint and enamel to same or approximate cost shade. 6. Sand smoothly woodwork to be finished with enamel or varnish; clean surface before proceeding with first coat application. Use fine sand paper between coats on enamel or varnish finish applied to wood to produce even smooth finish.
G. VARNISHING: 1. 2. 3. 4. 5.
Sand wood surfaces with fine grade sand paper. Wipe dust off with clean cloth dampened with lacquer thinner. Apply wood filler as per manufacturer’s specifications. Apply approved stain in uniform coats until desired shade is achieved. Apply finish coat as per manufacturer’s specifications.
X. FIRE CODE REQUIREMENTS All interior wooden structures shall be applied with resist-A-Flame Fire Retardant solution applied as per manufacturer’s specifications. All other requirement as of the fire code of the Philippines as far as they relate to this project shall likewise be complied with. XI. FIRE RETARDATION TREATMENTS A. SCOPE OF WORK 1. The Fire Retardant Applicator shall provide all materials, labor, tools, equipment and all facilities for the satisfactory and effective treatment with fire retardant solution or paint for the wooden components of the said project. General Conditions 2. The fire retardation under this item refers to the treatment of all wood, plywood, woodworks, acoustical board, lumber, wood studs, wood shavings, wooden shingles, bamboos and the like in the interior and/or exterior with proven fire retardant chemical having Class A or B Flame Spread Rating such as the “Resist-A-Flame” fire retardant or approved equal. 3. Studs, Trusses and other interior wooden components must be treated with Fire Retardant chemical before panellings are installed. 4. When colorless fire retardant chemicals are applied, treatment must be done before painting on both sides of the plywood. Care in the application must be meticulously observed in such a way that saturation and maximum penetration shall be achieved. 5. In the treatments, specified rate of application, as hereunder stated, must be carefully observed. Estimates for the needed quantity of chemicals must be observed during application inorder to attain maximum effectiveness. B. APPLICATION
1. Preparation Remove all loose dirt, dust and other foreign matters from the surfaces to be treated. Nail heads must be countersunk to clear the surface. Cooking within the area be prohibited; flammables be removed from the area; all workers be notified to avoid smoking and/or burning inside the building. Other precautions must be strictly observed inorder to prevent destructive fire in the area. All workers in the area must realize that the fire retardant chemical is flammable especially when it is newly applied.
2. Application Fire Retardant chemicals must be applied by the Fire Retardant Applicator duly authorized by the fire retardant chemical manufacturer/blender and certified by the Fire Code implementing agencies. The applicator and / or his men must follow good painting practices using paint brush, spray or rollers. They must conform with the following rate of application. a. All wooden doors and stairs shall be treated with fire retardants at the rate of 100 sq. ft. per gallon for Class A Flame Spread Rating or three (3) coatings; b. All ceiling boards, panellings and all wooden structures of the building that are found along corridors, lobbies and kitchen shall be treated at the rate of 150 sq. ft. gallon or two (2) coatings; c. All interior panellings, ceilings, floors, closets, cabinets and all other wooden components found in the interiors of a building shall be treated with fire retardant chemicals at the rate of 200 sq.ft. per gallon for Class “B” rating or one coating; and d. All other exterior wood-based component of the building such as sidings, facia boards, eaves, etc. shall be treated with fire retardants at the rate of 150 sq. ft. per gallon or two (2) coatings. C. GUARANTEE 1. The APPLICATOR shall and hereby warrants that all fire retardation work executed under this section shall be free from defects of materials and workmanship for a period of five (5) years from the date of the completion’s of application. 2. The APPLICATOR further agrees that he will at his own expense repair and replace all such defective work and all other works damaged thereby which becomes defective during the term of this guarantee.
D. CERTIFICATIONS 1. The APPLICATOR issues a certification of contract executed by an between him and the Owner/Contractor of the building which certification attests to the existence of a program for the application of fire retardant on the building during construction; and 2. The APPLICATOR issues a certification of treatment after the required treatment has been completed and accepted by the Owner/Building Contractor.
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