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Latest News
Counting Carbon: Understanding Carbon Footprints of Buildings
Everyone seems to be talking about measuring carbon footprints and designing carbon-neutral buildings, but these terms mean different things to...Read More
Making Air Barriers that Work: Why and How to Tighten Up Buildings
Incorporating a continuous air barrier into a building’s design and construction can save energy and improve the indoor environment, among...Read More
Cities Mandate LEED But Not Certification
Cities that adopt policies requiring private buildings to meet LEED standards—without actual certification—must figure out how to ensure green requirements...Read More
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Member Comments
An Affordable Heat-Pump Water-Heater Retrofit sunil sinha says, “AirTap Heat Pump Water Heater is installed in the places like garage, basement, attic which are mostly not directly heated...” More... Styrofoam SIS John Beeson says, “The aluminum layer which would reside on the outside (?) when taped would be an effect air retarder, but it...” More... An Affordable Heat-Pump Water-Heater Retrofit Ethan Goldman says, “Because this is an air-source heat pump, the heat it's "pushing" into the water in the tank is extracted from...” More... D'Mand Hot Water Delivery System Brent Eubanks says, “My unit is installed as a retrofit, and I have occasionally found warm water in my cold tap at the...” More... Alex Wilson says, “The concern Mr. Behm expresses is a real one--for retrofit applications. When a Metland, Taco, or Uponor D'Mand system is...” More... Gregory Behm says, “Brent or anyone else with D'Mand experiences, What is your experience with the cold water temperature after running the D'Mand system?...” More... Insulation: Thermal Performance is Just the Beginning Alex Wilson says, “While Air-Krete is "cementitious," it uses magnesium oxide cement, rather than Portland cement. To the best of our knowledge, the...” More... John Beeson says, “If Air-Krete has cement in it, wouldn't its "Pollution from Manufacture" column in the Summary chart be more significant than...” More... Water-Efficient Showerheads Brent Ehrlich says, “I can understand Bill’s confusion since the H2OKinetic web page explains/displays the body spray feature but not the showerhead. But...” More... Bill Burke says, “A check of the Delta website indicates that the "body spray" is 1.6 gpm but that the shower head is...” More... Styrofoam SIS Christopher Vlcek says, “Note that the shear panel is not considered a nailing surface. To apply wood siding over this panel, you must...” More...
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