Showing results 1 - 37 of 37
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A continuous layer of polyethylene covers the crawlspace floor and is attached to the wall with wood nailing strips
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Because the above-grade potions of the wall lack exterior insulation, condensation and even ice form during cold winter conditions
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Capillary break at all crawlspace floors using ≥ 6 mil polyethylene sheeting, lapped 6-12 in., and lapped up each wall or pier and fastened with furring strips or equivalent
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Concrete is poured into the rigid foam shell of the insulated concrete form (ICF) walls; a plastic water barrier has already been installed to protect the below-grade wall surfaces.
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Existing low-slope (“flat”) roof and brick masonry walls with a new fully adhered air barrier membrane plus polyisocyanurate rigid foam insulation and a roofing membrane water control layer
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Exterior fiberglass insulation on this new home was (incorrectly) cut to terminate below-grade after backfill, which will expose the above-grade portions of the foundation wall to cold temperatures
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Exterior XPS basement insulation is correctly installed to completely cover the foundation wall
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Foil-faced rigid foam and spray foam can be used to insulate a basement on the interior; use good moisture management techniques to keep the basement dry
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Good water management practices like sloping grade away from house, and installing gutters, perimeter drain pipe, a capillary break, and free-draining soils or drainage mat protect the foundation from water saturation.
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Over the taped rigid foam board, 2x4 furring strips provide a ventilating air gap and drainage plane under the engineered wood lap siding. The furring strips were attached with structural screws to provide an attachment surface for the siding.
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Polyethylene completely covers the floor of this crawlspace and is attached to the walls and piers as well
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Polyethylene is being attached to the crawlspace floor and walls with plywood furring strips
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Proper flashing around windows is especially important when the rigid foam serves as the drainage plane in the wall
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Right - Basement slab with a capillary break of either gravel or a drainage mat.
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Right – Furring strips provide a drainage gap between the rigid foam and the siding.
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Right – Polyethylene sheeting vapor barrier is installed and sealed to the crawlspace walls with mastic
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Right: All joints in the rigid foam are taped to keep stucco out of joints for even drying. Mesh tape (shown here) is used with expanded polystyrene (EPS); acrylic sheathing tape or self-adhered membrane is used with XPS
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Rigid foam insulation can serve as the drainage plane when all seams are taped. Furring strips provide an air gap behind the cladding.
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Rigid insulation and water control layers are installed on the exterior of a flat foundation wall; spray foam insulates the rim joist
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Seams in the ICF block are sealed so the EPS foam surface can serve as the drainage plane; no house wrap is needed.
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Spray foam extends down the inside of the foundation wall to the uninsulated slab; because the wall lacked exterior perimeter drainage, the slab was cut and an interior footing drain was installed.
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Tape horizontal joint with minimum 3" wide tape placing tape offset high on the joint, adhearing to the upper sheet without wrinkles
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Terminate 4" tape with 2" wide tape placing tape offset high on the joint, 2/3 of the tape should be adhered to the sheet of insulation
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This exterior wall retrofit permits drying to the exterior of a sill plate installed on an untreated flat foundation wall
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Vapor-permeable mineral wool insulation is installed on the exterior side of the sill beam during an exterior wall retrofit to allow the sill beam to dry to the outside
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Wrong – The polyethylene sheeting vapor barrier is not attached to the piers with mechanical fasteners