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Case Study:

New Whole-House Solutions Case Study: Insight Homes: Deep Creek, Seaford, Delaware

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Pest proofing of this unvented crawlspace includes a metal termite shield that extends out from the sill plate, metal flashing wrapping the bottom of exterior rigid foam, and a termite inspection gap above interior rigid foam.

Pest proofing of this unvented crawlspace includes a metal termite shield that extends out from sill plate, metal flashing wrapping bottom of exterior rigid foam, and a termite inspection gap above interior rigid foam.
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Points of radon entry into buildings

Points of radon entry into buildings
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Radon control techniques for basements, sill detail

Radon control techniques for basements, sill detail
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Radon fan– slab-on-grade construction

Radon fan– slab-on-grade construction
Video:

Radon Mitigation in New Construction

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Radon vertical ventilation pipe system – basement construction

Radon vertical ventilation pipe system – basement construction
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Radon vertical ventilation pipe system – crawlspace construction

Radon vertical ventilation pipe system – crawlspace construction
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Radon vertical ventilation pipe system – retrofit basement construction

Radon vertical ventilation pipe system – retrofit basement construction
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Radon vertical ventilation pipe system – slab-on-grade construction

Radon vertical ventilation pipe system – slab-on-grade construction
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Right - An unvented attic with no soffit vents, borate-treated fascia board, metal drip edge, and concrete block construction on this south Florida home help make it resistant to hurricanes, pests, and wind-born wildfire embers.

Right - An unvented attic with no soffit vents, borate-treated fascia board, metal drip edge, and concrete block construction on this south Florida home help make it resistant to hurricanes, pests, and wind-born wildfire embers.
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Right - Spray foam covers the walls and a sealed vapor retarder lines the floor of this unvented crawl space.

Right - Spray foam covers the walls and a sealed vapor retarder lines the floor of this unvented crawl space.
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Right - Spray foam insulates and air-seals the stone walls of this unvented crawlspace.

Right - Spray foam insulates and air-seals the stone walls of this unvented crawlspace.
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Right - This unvented crawlspace is insulated along interior walls with rigid foam and air-sealed by covering the floor with vapor retarder that is sealed to the rigid foam which is taped at the seams.

Right - This unvented crawlspace is insulated along interior walls with rigid foam and air-sealed by covering the floor with vapor retarder that is sealed to the rigid foam which is taped at the seams.
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Right - This unvented crawlspace is insulated along the walls and between the floor joists with 2-inch foil-faced polyisocyanurate; a termite inspection gap is visible above of the wall insulation and below the band joist.

Right - This unvented crawlspace is insulated along the walls and between the floor joists with 2-inch foil-faced polyisocyanurate; a termite inspection gap is visible above of the wall insulation and below the band joist.
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Right – A radon pipe provides a path for radon to vent to the roof rather than seeping into the home.

Right – A radon pipe provides a path for radon to vent to the roof rather than seeping into the home.
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Right – Spray foam insulates the unvented attic.

Right – Spray foam insulates the unvented attic.
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Right – The passive radon vent stack is properly labeled; this pipe brings radon and soil gases collected via a perforated pipe located under the floor slab up through an exterior wall for venting out through the roof.

Right – The passive radon vent stack is properly labeled; this pipe brings radon and soil gases collected via a perforated pipe located under the floor slab up through an exterior wall for venting out through the roof..
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Right – The radon pipe is labeled.

Right – The radon pipe is labeled.
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Slab-on-grade radon control techniques

Slab-on-grade radon control techniques
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Tape seals gaps between the vapor barrier and pipes that penetrate through the subslab vapor barrier.

Tape seals gaps between the vapor barrier and pipes that penetrate through the subslab vapor barrier.
Case Study:

Technology Solutions Case Study: Combustion Safety for Appliances Using Indoor Air

Case Study:

Technology Solutions Case Study: Field Testing an Unvented Roof with Asphalt Shingles in a Cold Climate

Case Study:

Technology Solutions Case Study: Field Testing an Unvented Roof with Fibrous Insulation and Tiles