PASSIVE HOUSE WINDOWS
Achieving a total window U-value of .16
HH Windows & Doors is one of the only North American companies capable of manufacturing Passive House grade windows and doors, achieving total product U-values as low as .16 (NFRC).
What is a Passive House?
The Passive House concept represents today’s highest energy standard. A Passive House is a very well-insulated, virtually air-tight building that is primarily heated by passive solar gain and by internal gains from people, electrical equipment, etc. High performance triple-glazed windows, super-insulation, an airtight building shell, limitation of thermal bridging and balanced energy recovery ventilation make possible extraordinary reductions in energy use and carbon emission. The result is an impressive system that not only saves up to 90% of space heating costs, but also provides a uniquely terrific indoor air quality.
Our Passive House grade window specifications:
- 78 mm sash thickness
- Fully concealed hinging (smaller glass lines and more glass space resulting in a lower U-value)
- Center of glazing U-value = .132, SHGC = .586, Tvis = .69)
- Triple overlay sash construction
- Triple gasketing
- Fully concealed multi point locking hardware
Not interested in Passive House grade windows?
Not a problem! Our standard windows and doors still perform better than most standard American windows. Moreover, we can tailor our windows and doors to virtually any U-value based on your specifications.
What makes our windows and doors so energy efficient?
The superior thermal performance of our windows and doors is the result of both advanced engineering and the materials involved in manufacturing. Triple overlay sash construction, triple gasketing, and multi point locking hardware ensure an unusually tight compression seal, resulting in no air leaks or water penetration. Advanced glazing options, including double or triple pane glass with various LoE configurations, as well as Argon or Krypton gas fill, produce exceptionally low center of glazing U-values. Finally and perhaps most importantly, wood is highly insular. In fact, wood insulates more than any other window and door material available. The result is a window that can achieve a U-value of .16