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Basement plan showing sump pump location and perimeter drain that empties to the sump pit

Basement plan showing sump pump location and perimeter drain that empties to the sump pit
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Basic foundation types: deep basement, submerged crawl space, flush crawl space, and slab-on-grade

Basic foundation types: deep basement, submerged crawl space, flush crawl space, and slab-on-grade
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Bathrooms should be equipped with an exhaust fan that vents directly outdoors

Bathrooms should be equipped with an exhaust fan that vents directly outdoors
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Because flue temperatures are cool, intake and exhaust ducts on a Category 4 direct-vent sealed-combustion condensing furnace can be made of PVC

Because flue temperatures are cool, intake and exhaust ducts on a Category 4 direct-vent sealed-combustion condensing furnace can be made of PVC
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Because the above-grade potions of the wall lack exterior insulation, condensation and even ice form during cold winter conditions

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

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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Braced cripple wall construction in crawlspace anchored to framing and foundation

Braced cripple wall construction in crawlspace anchored to framing and foundation
Video:

BrHEAThe Instruction Video

Case Study:

Building America Case Study: Simplified Air Distribution, Desuperheaters, and Sub-Slab Geothermal Heat Exchangers

Case Study:

Building America Case Study: Standard- Versus High-Velocity Air Distribution in High-Performance Townhomes

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Capillary break at all crawlspace floors using > 6 mil polyethylene sheeting, lapped 6-12 in., and secured in the ground at the perimeter using stakes

Capillary break at all crawlspace floors using > 6 mil polyethylene sheeting, lapped 6-12 in., and secured in the ground at the perimeter using stakes
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Capillary break at all crawlspace floors using ≥ 6 mil polyethylene sheeting, lapped 6-12 in., and lapped up each wall or pier and fastened with furring strips or equivalent

Capillary break at all crawlspace floors using ≥ 6 mil polyethylene sheeting, lapped 6-12 in., and lapped up each wall or pier and fastened with furring strips or equivalent
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Capillary break at all crawlspace floors using ≥ 6 mil polyethylene sheeting, lapped 6-12 in., and placed beneath a concrete slab

Capillary break at all crawlspace floors using ≥ 6 mil polyethylene sheeting, lapped 6-12 in., and placed beneath a concrete slab
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Caulk may be used to seal the cracks in the band joist area

Caluk may be used to seal the cracks in the band joist area
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CCHRC: Combustion Safety Test

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Central heat pump water heaters like this fully packaged system provide efficient, reliable domestic hot water for multifamily buildings; storage tanks are within the enclosure, and the heat pump is seen just outside.

Central heat pump water heaters like this fully packaged system provide efficient, reliable domestic hot water for multifamily buildings; storage tanks are within the enclosure, and the heat pump is seen just outside.
Video:

Closed Crawlspace - Finished Tour

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Closed-cell spray foam insulates the floor above a vented crawlspace; a protection board made of fiber cement is screwed in place under the floor joists to keep out pests

Closed-cell spray foam insulates the floor above a vented crawlspace; a protection board made of fiber cement is screwed in place under the floor joists to keep out pests
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Clothes dryers vented directly to outdoors, except for ventless dryers equipped with a condensate drain

Clothes dryers vented directly to outdoors, except for ventless dryers equipped with a condensate drain
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Common exhaust duct not shared by fans in separate dwellings

Common exhaust duct not shared by fans in separate dwellings
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Comprehensive above-grade water management details for a crawlspace foundation include a capillary break over the crawlspace floor, slope the surface grade away, installing gutters that slope away, and capillary break under sill plate.

Comprehensive above-grade water management details for a crawlspace foundation include a capillary break over the crawlspace floor, slope the surface grade away, installing gutters that slope away, and capillary break under sill plate.
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Comprehensive water management features include a capillary break (≥ 6-mil polyethylene sheeting) at all crawlspace floors

Comprehensive water management features include a capillary break (≥ 6-mil polyethylene sheeting) at all crawlspace floors
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Concrete crawl space wall with exterior insulation

Concrete crawl space wall with exterior insulatio
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Concrete crawl space wall with interior insulation

Concrete crawl space wall with interior insulation