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Air seal and insulate double-walls that are half-height or full-height walls used as architectural features in homes.
Air seal and insulate flex ducts
Air seal and insulate the rim and band joists of walls separating an attached garage from the home’s conditioned space.
Air seal around all duct shafts and flues installed through ceilings, walls, or flooring to keep conditioned air from leaking into unconditioned space.
Air seal around all plumbing and piping installed through walls, ceilings, and flooring to keep conditioned air from leaking into unconditioned space.
Air seal around all wiring installed through walls, ceilings, and flooring to keep conditioned air from leaking into unconditioned space.
Air seal around kitchen and bathroom exhaust fans to keep conditioned air from leaking into unconditioned space.
Air seal around recessed can light fixtures installed through ceilings to keep conditioned air from leaking into unconditioned space.
Air seal door and window rough openings with backer rod, caulk, or nonexpanding foam
Air seal drywall to top plates at all attic/wall interfaces to minimize air leakage.
Air seal duct boot to ceiling by installing fiberglass mesh tape and mastic over seam
Air seal floor joist cavities under kneewall with rigid foam, plywood, or OSB caulked in place
Air seal the common wall between units in a multi-family structure to minimize air leakage.
Air seal the floor above a garage when there is living space above the garage and make sure floor insulation is in full contact with the underside of the subfloor.
Air seal the floor above an unconditioned basement or crawlspace and make sure floor insulation is in full contact with the underside of the subfloor.
Air seal the top, bottom, and sides of a cantilevered floor cavity and ensure that insulation is in full contact with all sides without voids.
Air speeds generated by a typical ceiling fan are in the ideal range for providing occupant cooling without causing disruption
Air-Impermeable Insulation for Condensation Control in Unvented Attics, per IRC Table 806.5.
Airflow can be directed across thermal mass in the ceiling, floor, or elsewhere inside the home through various window and louver configurations
All ceiling, wall, floor, and slab insulation shall achieve RESNET-defined Grade I installation
All components of the recirculation system should be included in the plumbing layout.
All holes through the top plates should be sealed with canned spray foam to prevent conditioned air from leaking into the attic.
All of the ductwork for the efficient (8.5 HSPF, 15 SEER) heat pump is mastic sealed and installed in conditioned space.
All of the pipes are insulated on this high-efficiency 50-gallon heat pump water heater.
All other supply ducts and all return ducts in unconditioned space have insulation ≥ R-6
All populated regions in the United States can experience an extreme heat event, whether northern or southern, humid or dry, or urban or rural
All return air and mechanically supplied outdoor air pass through filter prior to conditioning
All seams between structural insulated panels (SIPs) foamed and/or taped per manufacturer's instructions
All seams in the HVAC equipment and ductwork are sealed with mastic; because the HVAC equipment is in the garage, it is an air-sealed closet
All vents are routed to gable walls and eaves rather than through the roof to minimize the risk of leaks and provide an uninterrupted plane for PV panels.
Alliance Green Builders built this custom for buyer home in the hot-dry climate in Ramona, CA, and certified it to DOE Zero Energy Ready Home specifications in 2017.