Showing results 1 - 22 of 22
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A portable CO monitor is used to test for ambient CO near a ventless combustion fireplace
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A typical Las Vegas hot-dry climate home made of wood frame construction and insulated with R-25 expanded polystyrene externally over a drainage plane, with an unvented wood frame insulated attic and roof assembly.
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Air-Impermeable Insulation for Condensation Control in Unvented Attics, per IRC Table 806.5.
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Attic ventilation fans exhaust hot air from the attic while replacing it with cooler air from the outside through intake vents
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Mold on the sheathing in this attic occurred after attic ventilation was increased
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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.
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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.
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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.
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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.
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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.
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This solar powered attic fan runs when the sun is shining and does not draw any power from the home’s electrical system
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Unvented concrete masonry unit crawl space with exterior insulation - designed for termite resistance in moderately infested areas
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Unvented crawl space with interior insulation - designed for termite resistance in heavily infested areas
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Unvented roof assembly at eave retrofitted with rigid foam, spray foam, and a fully adhered membrane seal at the top of wall-to-roof transition
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Unvented roof assembly at eave retrofitted with rigid foam, spray foam, and taped top edge of existing house wrap or building paper
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Unvented roof assembly at rake retrofitted with a filler piece and taped top edge of existing house wrap or building paper to seal the top of wall-to-roof transition
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Unvented roof assembly at rake retrofitted with spray foam installed along the underside of the roof deck and extended to the rake edge to insulate and air seal the attic
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