Showing results 1 - 83 of 83
Image
Image
A concrete slab floor can be elevated above local grade as a strategy to prevent flood damage.
Image
A concrete slab-on-grade foundation with exterior insulation, which can be elevated above the local grade as a flood-prevention strategy.
Image
A dimpled rain mat and perforated drain pipe provide drainage around the basement foundation.
Image
An exhaust fan pulls damp air out of a retrofitted sealed crawlspace while drawing in dry air from the living space
Image
An uninsulated (or existing insulated) basement slab is retrofitted to reduce moisture transmission by sealing with epoxy paint.
Image
Image
Because the above-grade potions of the wall lack exterior insulation, condensation and even ice form during cold winter conditions
Image
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
Image
Buoyancy force on dry floodproofed homes with deep basements leads to possible foundation damage
Image
Image
Image
Image
Drainage and waterproofing system components in a basement, single perimeter drain system, footing detail
Image
Image
Epoxy paint is installed to provide a moisture control layer on the surface of an existing basement slab
Image
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
Image
Exterior XPS basement insulation is correctly installed to completely cover the foundation wall
Image
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
Image
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
Image
ICF bricks are stacked to form hollow walls that are reinforced with steel rebar before the concrete is poured in
Image
Image
Image
New Charleston, SC home's first level used as parking, storage, and access space
Image
Image
Image
Right - Basement with exterior XPS or EPS insulation and insulation under the basement slab.
Image
Image
Right - Below-grade concrete has been properly sealed against moisture and is now having insulation installed.
Image
Right - Closed-cell spray foam covers the interior of the foundation wall and wall framing is placed to the inside of the spray foam.
Image
Right - Closed-cell spray foam is used to retrofit an existing rubble basement foundation wall.
Image
Right - Closed-cell spray foam was applied to the interior of a foundation wall.
Image
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.
Image
Right - Foil-faced polyisocyanurate rigid foam board is tightly installed and sealed against a concrete foundation wall prior to installing fibrous blanket insulation.
Image
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.
Image
Right - Poured concrete basement wall showing exterior insulation and sill detail; above-grade wall has sheathing to the inside of the rigid foam.
Image
Right - Poured concrete basement wall showing exterior insulation and sill detail; above-grade wall has sheathing to the outside of the rigid foam.
Image
Right - Retrofit of an existing basement slab by adding dimple plastic mat, rigid foam insulation, and a floating subfloor.
Image
Right - Rigid foam insulation is installed along the exterior edge of an existing foundation slab.
Image
Right - The basement foundation is insulated on the exterior and termite shield extends out past the top of the insulation.
Image
Right - The concrete basement wall is insulated on the interior with rigid foam; the footing detail is shown.
Image
Right - The concrete masonry unit (CMU) basement wall has exterior insulation; the footing details include interior and exterior footing drain pipe.
Image
Right - The existing basement slab is retrofitted by installing a dimple plastic drainage mat, rigid foam insulation, and a floating subfloor.
Image
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.
Image
Right - This concrete basement wall is insulated on the interior with rigid insulation; sill details are shown.
Image
Right - This concrete basement wall is insulated on the interior with spray foam insulation; sill detail are shown.
Image
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
Image
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.
Image
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.
Image
Right – A sump pump with a perforated sump pit was installed in the crawlspace slab to reduce water accumulation under the slab
Image
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
Image
Right – Foundation drainage mat was installed over the waterproof membrane that covers the sealed crawlspace window
Image
Image
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.
Image
Right – The insulated concrete forms that are below-grade have a damp-proof coating to prevent moisture seeping into the foundation
Image
Right – The seam between the slab and the foundation wall is sealed with urethane caulk.
Image
Right – The slab is coated with two coats of epoxy paint to minimize moisture transfer through the slab from the ground.
Image
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
Image
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.
Image
Rigid foam insulation and a thin slab were installed over the dirt and gravel of this sealed crawlspace
Image
Rigid insulation and water control layers are installed on the exterior of a flat foundation wall; spray foam insulates the rim joist
Image
Image
Spray foam extends down the foundation wall to the slab, which has been retrofitted by adding dimple plastic drainage mat and rigid foam insulation.
Image
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.
Image
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.
Image
Image
Image
Image
The existing slab is retrofitted by coating with epoxy paint, then installing rigid foam insulation and a floating subfloor.
Image
The existing slab is retrofitted with epoxy paint, rigid foam insulation, sleepers (furring strips), and subfloor.
Image
The goal of foundation moisture management is to construct the basement, crawlspace, or slab in a way that keeps moisture from getting in in the first place
Image
This basement is insulated on the exterior with rigid foam over dampproofing, with granular backfill and footing drains to facilitate drainage away from the foundation, a termite shield to protect from pests, and cellular PVC to protect the rigid foam.
Image
This exterior insulated slab-on-grade monolithic grade beam foundation is protected from pests by termite shield at the sill plate, borate-treated framing, flashing at end of wall insulation, brick veneer over slab-edge insulation, and rock ground cover.
Image
Image
Image
Water-proof materials cover the exterior side of crawlspace windows in a crawlspace retrofit, while foil-faced rigid foams seals and insulates the inside face of the openings
Image
Wrong - Moisture from within the basement foundation wall can migrate into the insulation cavity in a conventional blanket insulation installation.
Image
Wrong - The basement blanket insulation is loosely attached to the interior of the basement wall, does not cover the entire wall, is not sealed at the edges, and is not installed over rigid foam that covers the entire surface of the foundation walls.
Image
Wrong - The below-grade concrete does not have the correct construction to be impermeable to moisture because the lumber is untreated and against the concrete that lacks waterproofing.
Image
Wrong – A poorly sealed window and window well allow bulk water to enter the crawlspace from ground that slopes toward the structure
Image
Image
Wrong – The insulated concrete forms at the foundation do not have a damp-proof coating
Image
Wrong – This vented crawlspace has standing water because steps were not taken to address site conditions that led to bulk water flow into the crawlspace