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The “perimeter cutoff and dewatering” approach can be used to control groundwater in cases where the building foundation is below the groundwater table.

The “perimeter cutoff and dewatering” approach can be used to control groundwater in cases where the building foundation is below the groundwater table.
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The air filter slot on this air handler has no cover.

The air filter slot on this air handler has no cover.
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The air filter slot on this furnace is covered with a magnetic seal.

The air filter slot on this furnace is covered with a magnetic seal.
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The air intake or exhaust grilles in this second-story soffit will be very difficult to safely access to measure airflow

The air intake or exhaust grilles in this second-story soffit will be very difficult to safely access to measure airflow
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The base of the plywood parapet is air sealed with spray foam and fibrous insulation is installed in the rafter cavities in this flat roof retrofit

The base of the plywood parapet is air sealed with spray foam and fibrous insulation is installed in the rafter cavities in this flat roof retrofit
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The below-grade wall assembly includes dampproofing, draining details, and insulation.

The below-grade wall assembly includes dampproofing, draining details, and insulation.
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The black coating on these walls is a liquid-applied asphalt-based air and moisture barrier.

The black coating on these walls is a liquid-applied asphalt-based air and moisture barrier.
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The blocking for a new PV roof-mounting system is integrated with new rigid foam and the air and water control layers installed over an existing flat roof

The blocking for a new PV roof-mounting system is integrated with new rigid foam and the air and water control layers installed over an existing flat roof
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The blocking is completely flashed with roofing membrane before the PV rack hardware is attached on a flat roof

The blocking is completely flashed with roofing membrane before the PV rack hardware is attached on a flat roof
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The board in the center of this photograph shows blue stain (not lumber mold), a discoloration of the wood caused by a fungus affecting the living tree, which did not harm the structural integrity of the wood.

The board in the center of this photograph shows blue stain (not lumber mold), a discoloration of the wood caused by a fungus affecting the living tree, which did not harm the structural integrity of the wood.
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The builder installed a rain screen product that provides an air gap and drainage plane between the coated OSB sheathing and the cladding; the fabric layer folded over the bottom edge forms an insect screen.

The builder installed a rain screen product that provides an air gap and drainage plane between the coated OSB sheathing and the cladding; the fabric layer folded over the bottom edge forms an insect screen.
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The developer added pavers and drains that discharge to underground drywells to reduce storm water runoff.

The developer added pavers and drains that discharge to underground drywells to reduce storm water runoff.
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The diverter should be adequately sized to direct all of the water away from the wall and into the gutter.

The diverter should be adequately sized to direct all of the water away from the wall and into the gutter.
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The Durable Energy home is equipped with a water filtration system, which uses ultrafine membranes and carbon filters to filter city water or harvested rainwater to “bottled water-quality” for drinking water in the disaster-resilient home.

The Durable Energy home is equipped with a water filtration system, which uses ultrafine membranes and carbon filters to filter city water or harvested rainwater to “bottled water-quality” for drinking water in the disaster-resilient home.
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The elevator shaft in this multistory multifamily building has an exhaust fan that maintains a slight negative pressure to control odors; there is also a smoke vent that is dampered closed during normal conditions.

The elevator shaft in this multistory multifamily building has an exhaust fan that maintains a slight negative pressure to control odors; there is also a smoke vent that is dampered closed during normal conditions.
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The energy recovery ventilator operates continuously to provide clean fresh air throughout the home.

The energy recovery ventilator operates continuously to provide clean fresh air throughout the home.
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The entire roof of the home is covered with an ice-and-water shield to help protect against moisture damage.

The entire roof of the home is covered with an ice-and-water shield to help protect against moisture damage.
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The existing flat roof before removal of membrane shows lack of slope allowing water to pool on the surface

The existing flat roof before removal of membrane shows lack of slope allowing water to pool on the surface
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The existing sheathing boards are removed near the perimeter of the flat roof and pressure-treated plywood is installed at the vertical face of the parapet

The existing sheathing boards are removed near the perimeter of the flat roof and pressure-treated plywood is installed at the vertical face of the parapet
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The existing slab is retrofitted by coating with epoxy paint, then installing rigid foam insulation and a floating subfloor.

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.

The existing slab is retrofitted with epoxy paint, rigid foam insulation, sleepers (furring strips), and subfloor.
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The exterior of the home is wrapped in a continuous layer of rigid foam with all seams taped to provide a thermal, air, and moisture barrier and serve as a drainage plane, eliminating the need for house wrap.

The exterior of the home is wrapped in a continuous layer of rigid foam with all seams taped to provide a thermal, air, and moisture barrier and serve as a drainage plane, eliminating the need for house wrap.
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The fluid-applied asphalt coating provides a weather-resistant, moisture resistant layer around the house, serving as a continuous drainage plane and flashing for window and door openings.

The fluid-applied asphalt coating provides a weather-resistant, moisture resistant layer around the house, serving as a continuous drainage plane and flashing for window and door openings.
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The gap between the air filter and the return duct opening has been sealed with tape that will stop air flow but is easily pulled off or cut through when the filter needs to be replaced.

The gap between the air filter and the return duct opening has been sealed with tape that will stop air flow but is easily pulled off or cut through when the filter needs to be replaced.