Constructive Instruction for Crawl Space

CRAWL SPACE WITH COFFOR TWO METHODS

Method 1: In two steps: foundation then crawl space – Two pouring

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1. Pouring a rough concrete at bottom of foundation 2. Placement of foundation rebarPouring foundations 3. Starter bar are ready to receive the COFFOR panels

Rough concrete 8-10 cm

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5. Placement of COFFOR panels –The COFFOR panels are placed horizontally

Rough concrete 8-10 cm

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6. The COFFOR panels are cut with an electric saw to leave the thickness of the slab.

Thickness of slab

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6. Positioning of rebar for the crawl space

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7. Placement of the horizontal formwork for the slab – The formwork can be a COFFOR single panel or any other type of formwork 8. Placement of rebar for slab.

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BEFORE POURING CONCRETE - The plumber must come to insert all conduits (evacuation of water and all plumbing). - Installation of ventilated grids. - The electrician must come to insert all conduits for electrical.

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9. Pouring of the crawl space together with the slab resulting in a full monolithic structure.

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Method 2: In one step: foundation and crawl space are built at the same time – only one pouring

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1. Pouring a rough concrete at bottom of foundation 2. Mise en place des armatures de fondation 3. Mise en place des armatures verticales du vide sanitaire

Rough concrete 8-10 cm

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4. Placement of the COFFOR panel –Panels are placed hotizontally. The COFFOR panel goes down up the rough concrete.

Rough concrete 8-10 cm

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5. The COFFOR panel is cut with an electric saw to leave the thickness of the slab

Thickness of slab

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6. Concreting of foundation

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7. Placement of the horizontal formwork for the slab. 8. Placement of rebar for the slab.

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BEFORE POURING CONCRETE - The plumber must come to insert all conduits (evacuation of water and all plumbing). - Installation of ventilated grids. - The electrician must come to insert all conduits for electrical.

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9. Pouring of the crawl space together with the slab resulting in a full monolithic structure.

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