Showing results 1 - 43 of 43
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Impervious surfaces like patio slabs, sidewalks, and driveways that are within 10 feet of the home should slope away from the house.
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An uninsulated (or existing insulated) basement slab is retrofitted to reduce moisture transmission by sealing with epoxy paint.
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Any holes through the vapor barrier installed over the basement floor slab are thoroughly sealed as part of the foundation water barrier system.
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Comprehensive water management features include a capillary break (≥ 6-mil polyethylene sheeting) at all crawlspace floors
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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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Right - Basement slab with a capillary break of either gravel or a drainage mat.
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Right - Retrofit of an existing basement slab by adding dimple plastic mat, rigid foam insulation, and a floating subfloor.
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Right - The existing basement slab is retrofitted by installing a dimple plastic drainage mat, rigid foam insulation, and a floating subfloor.
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Right – Polyethylene sheeting completely covers the aggregate and the footing with no tears or open seams
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Right – Polyethylene sheeting is laid over aggregate and over footing to provide a capillary break between the ground and the slab and between the footing and the stem wall
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Right – The drain slopes away from the foundation and terminates at the proper distance
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Right – The seam between the slab and the foundation wall is sealed with urethane caulk.
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Right – The slab is coated with two coats of epoxy paint to minimize moisture transfer through the slab from the ground.
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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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Spray foam extends down the foundation wall to the slab, which has been retrofitted by adding dimple plastic drainage mat and rigid foam insulation.
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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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Spray foam insulation extends down the foundation wall to the slab, which has been retrofitted by cutting the slab to install drainage mat against the wall and a new perimeter footing drain, along with rigid foam plastic above the slab.
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The existing slab is retrofitted by coating with epoxy paint, then installing rigid foam insulation and a floating subfloor.
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The existing slab is retrofitted with epoxy paint, rigid foam insulation, sleepers (furring strips), and subfloor.
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The seams of the rigid insulation are not taped and it will not provide a complete capillary break
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There is polyethylene sheeting installed to provide a capillary break between the ground and slab
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To help keep the monolithic slab-on-grade foundation dry, the site’s surfaces is graded away from the structure, the slab is poured on a bed of gravel, and using a vapor barrier will separate the foundation from the sill plates.
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Wrong – Drain pipe has been cut and foundation penetration has not been properly sealed
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Wrong – No polyethylene sheeting vapor barrier is installed on the crawlspace floor
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Wrong – Polyethylene sheeting does not completely cover the aggregate and the footing
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Wrong – Polyethylene sheeting does not extend beyond edge of aggregate to separate the footer from the stem wall which will be poured next
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