Showing results 1 - 50 of 154
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A concrete slab floor can be elevated above local grade as a strategy to prevent flood damage.
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A concrete slab-on-grade foundation with exterior insulation, which can be elevated above the local grade as a flood-prevention strategy.
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A dimpled plastic water barrier protects the insulated concrete form basement walls and carries any ground water down the walls to the footing drain to minimize the opportunity for water intrusion and frost heave.
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A dimpled rain mat and perforated drain pipe provide drainage around the basement foundation.
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A layer of pea gravel or crushed stone, 4 inches thick and sloped 5%, provides a pest-resistant ground break around the perimeter of a basement foundation
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Air seal the floor above an unconditioned basement or crawlspace and make sure floor insulation is in full contact with the underside of the subfloor.
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Although crawlspaces are not recommended in flood-prone areas, they can be designed or retrofitted to greatly increase resistance to flood damage.
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An exhaust fan pulls damp air out of a retrofitted sealed crawlspace while drawing in dry air from the living space
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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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Basement plan showing sump pump location and perimeter drain that empties to the sump pit
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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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Before sealing and insulating the crawlspace, the windows were sealed, the window wells backfilled, and sumps pumps were installed that discharged to the gutter downspouts
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Buoyancy force on dry floodproofed homes with deep basements leads to possible foundation damage
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Detail of radon vent stack connection to existing basement slab – retrofit basement construction
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Drainage and waterproofing system components in a basement, single perimeter drain system, footing detail
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Epoxy paint is installed to provide a moisture control layer on the surface of an existing basement slab
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Example of an earth-sheltered home in hot climate Tempe, AZ uses the cooling properties of the ground to decrease cooling costs
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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 surface of below-grade walls finished as follows: For poured concrete, concrete masonry, and insulated concrete forms, finish with damp-proof coating
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Exterior surface of below-grade walls finished as follows: For wood-framed walls, finish with polyethylene and adhesive or other equivalent waterproofing
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Exterior XPS basement insulation is correctly installed to completely cover the foundation wall
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Flood vents allow floodwaters to enter and exit the crawlspace without causing hydrostatic pressure differences
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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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For seismic resistance in basement, crawlspace, and crawlspace “cripple” wall foundations, connect the plywood or OSB sheathing to the wall framing, rim joist, and sill plate and anchor bolt the sill plate to the foundation
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ICF bricks are stacked to form hollow walls that are reinforced with steel rebar before the concrete is poured in
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Moisture can migrate from below the foundation to the basement wall and insulation cavity in a conventional blanket insulation installation
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New Charleston, SC home's first level used as parking, storage, and access space
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Right - A continuous layer of rigid foam insulation is installed against the foundation, and the perforated fiberglass insulation blanket is installed over that and covered with a semipermeable facing.
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Right - Air barrier is present and installed between the floor system and unconditioned space.
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Right - All seams in the HVAC equipment and ductwork are sealed with mastic; because the HVAC equipment is in the garage, it is an air-sealed closet.
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Right - Basement with exterior XPS or EPS insulation and insulation under the basement slab.
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