Showing results 1 - 100 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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Right - Below-grade concrete has been properly sealed against moisture and is now having insulation installed.
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Right - Closed-cell spray foam covers the interior of the foundation wall and wall framing is placed to the inside of the spray foam.
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Right - Closed-cell spray foam is used to retrofit an existing rubble basement foundation wall.
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Right - Closed-cell spray foam was applied to the interior of a foundation wall.
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Right - Concrete masonry unit (CMU) basement wall showing exterior insulation and sill detail; above-grade wall has sheathing to the inside of the rigid foam.
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Right - Foil-faced polyisocyanurate rigid foam board is tightly installed and sealed against a concrete foundation wall prior to installing fibrous blanket insulation.
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Right - Potential locations for basement insulation in new construction, slab insulation should always be underneath, with walls insulated (a) inside, (b) outside, (c) sandwiched inside, or (d) inside and outside of walls.
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Right - Poured concrete basement wall showing exterior insulation and sill detail; above-grade wall has sheathing to the inside of the rigid foam.
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Right - Poured concrete basement wall showing exterior insulation and sill detail; above-grade wall has sheathing to the outside of the rigid foam.
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Right - Precast concrete basement walls come to the site with integrated rigid foam insulation and steel-faced concrete studs.
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Right - Reduce condensation risks to blanket insulation by installing perforated vapor retarder covered fiberglass blankets over rigid foam that is air-sealed at all edges; staple the blanket to nailers and top/bottom plates and tape over the seams.
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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 - Rigid foam board is attached to the interior surface of the basement walls.
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Right - Rigid foam insulation is installed along the exterior edge of an existing foundation slab.
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Right - Section view showing how to air-seal and insulate a basement wall with perforated blanket insulation by installing it over air-sealed rigid insulation board to reduce condensation risk in the fiberglass blanket.
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Right - The basement foundation is insulated on the exterior and termite shield extends out past the top of the insulation.
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Right - The basement walls are wrapped with 3 inches of XPS rigid foam that will be taped at the seams then covered with a dimpled plastic water barrier.
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Right - The blanket fiberglass insulation is installed over a continuous layer of rigid foam insulation; the fiberglass is covered with a vapor retarder that is tape sealed at the seams.
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Right - The concrete basement wall is insulated on the interior with rigid foam; the footing detail is shown.
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Right - The concrete masonry unit (CMU) basement wall has exterior insulation; the footing details include interior and exterior footing drain pipe.
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Right - The conditioned basement is insulated on the interior with 1 inch of polyiso R-6.3 rigid insulation.
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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 - The poured concrete basement walls are insulated along the inside with 2.5 inches of extruded polystyrene insulation.
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Right - This concrete basement wall has exterior rigid insulation and comprehensive moisture management details.
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Right - This concrete basement wall is insulated on the interior basement walls with spray foam and under the slab with rigid foam; footing details are shown.
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Right - This concrete basement wall is insulated on the interior with rigid insulation; sill details are shown.
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Right - This concrete basement wall is insulated on the interior with spray foam insulation; sill detail are shown.
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Right - This opening in the foundation wall around this pipe was filled with wire mesh then sealed with spray foam to prevent rodent and insect entry
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Right - This poured concrete basement wall is insulated on the exterior and under the slab with rigid insulation; footing details include interior and exterior footing drain pipe.
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Right - XPS rigid foam board is tightly installed against a concrete foundation wall and seams are sealed with tape prior to installing fibrous blanket insulation.
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Right – A sump pump with a perforated sump pit was installed in the crawlspace slab to reduce water accumulation under the slab
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Right – A termite inspection gap is left at the top of the rigid foam board basement wall insulation.
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Right – Construction adhesive is applied to the rigid foam panels that will be installed on the interior basement walls.
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Right – Foil-faced insulation was added after the crawlspace was dried and sealed by diverting water runoff, sealing off crawlspace windows and vents, and adding sump pumps and exhaust fan ventilation
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Right – Foundation drainage mat was installed over the waterproof membrane that covers the sealed crawlspace window
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Right – Precast concrete basement walls come to the site with integrated insulation and steel-faced concrete studs.
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Right – The basement contains four 5,000-gallon rainwater holding tanks for this home which meets all of its water needs with rainwater.
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Right – The basement of this cold-climate home is insulated along interior walls with 2 inches of foil-faced rigid foam; finished basement walls also have a 2x4 interior wall insulated with R-19 blown-in fiberglass insulation and a poly vapor barrier.
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Right – The entire first floor and second floor of these modular homes were assembled in the factory and installed on an insulated concrete basement foundation on site.
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Right – The insulated concrete forms that are below-grade have a damp-proof coating to prevent moisture seeping into the foundation
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Right – The rim joists above the pre-insulated basement walls are sealed and insulated with spray foam to prevent air leakage at this juncture in the building envelope.
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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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Right – The spacer structure of these ICFs provides supports for attaching the fasteners used to attach the metal studs of the below-grade walls.
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Right – This crawlspace window was completely sealed off on the inside and outside with air barrier and water-proof materials and the window well was filled in to an above-grade height to prevent bulk water from entering the crawlspace
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Right – Two inches of rigid foam was installed on the ground before pouring the basement floor slab while precast, pre-insulated concrete panels comprise the basement walls.