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Portable gasoline-powered generators like this one can power smaller emergency cooling and refrigeration loads
Possible failure scenarios due to house sitting on poorly braced and secured cripple wall
Possible locations of heat pump water heater (HPWH)s in a hypothetical multifamily building using a one-to-one deployment of one HPWH per apartment
Possible locations of heat pump water heaters in a hypothetical multifamily building using a cluster deployment where pairs of dwelling units share a heat pump water heater
Power production from the Integrated solar shingles helps cut electric bills to $71 a month for this home in North Carolina.
Preconditioned outdoor air is supplied to the corridors on each floor of a multistory multifamily building, pressurizing the corridors and providing make-up air for the elevator shaft, which is depressurized by an exhaust fan.
Preferred Builders built this custom home in the cold climate in Old Greenwich CT, and certified it to DOE Zero Energy Ready Home specifications in 2013.
Prepare chase with adhesive for bottom insulation
Prescriptive Path: Supply ducts in unconditioned attic have insulation ≥ R-8. Performance Path: Supply ducts in unconditioned attic have insulation ≥ R-6
Pressure manometers are used to determine the level of pressurization and rate of leakage when conducting blower door testing and building diagnostics
Preventative steps to take throughout the home to prepare for an earthquake or other natural disasters
Preventive measures by builders can reduce the likelihood that termites will cause large-scale destruction later on.
Probability that a flood will exceed the n-year flood level over a given period of time.
Profile of an open/shallow pier foundation for riverine areas where an open foundation style is desirable and for buildings in Coastal A Zone where scour and erosion is limited.
Promethean Homes built this custom home in the mixed-humid climate in Charlottsville, VA, and certified it to DOE Zero Energy Ready Home specifications in 2014.
Proper flashing around windows is especially important when the rigid foam serves as the drainage plane in the wall
Proper gutter and downspout system terminates with final grade sloping away from the home
Proper refrigerant charging is critical to maximizing performance for compression cooling systems
Properly install all water-using fixtures, equipment, and appliances such that there are no leaks.
Properly reinforce masonry walls in coastal locations to resist high winds and waves.
Provide a continuous air barrier from the rigid foam below the crawlspace floor joists to the rim joist to the exterior wall above
Provide flashing and sealing integrated with the air and water control layers for vents and other roof penetrations
Provide structural supports that soffit panels can be nailed to at no less than 12 inches apart.
Pull the insulation and outer liner of the flex duct over the collar to come in full contact with the liner and insulation of the trunk line or fitting and tape in place
Pulling flex duct taut when installing greatly reduces the amount of friction caused by the ducting