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Ductwork, furnaces and air handlers should be sealed against air leakage. The only place air should be able to leave the supply duct system and the furnace or air handling unit is at the supply… Read More

In climates where the average monthly temperature for the coldest month of the year goes below 45°F, the temperature of the slab perimeter may be below the dew point of interior air for a significant… Read More

Basements are part of a home, within the building boundary—despite repeated attempts over the years to disconnect them from the living space. Because of this, basements should be designed and… Read More

 The information presented has been compiled from:ASHRAE Fundamentals - 2001Moisture Control in BuildingsCMHCNRC/IRCIEA Annex 24Manufacturer dataWhen using this information, it MUST be done in… Read More

In building air barriers, the field of the opaque wall typically does not contribute strongly to the building’s overall air leakage.  Instead, details that connect building components are often… Read More

Managing exterior sources of liquid water, i.e. rainwater and groundwater, are one of the principal functions of the building enclosure system, and site work (refer to Information Sheets 101, and 301… Read More

Keeping soil gas (radon, water vapor, herbicides, termiticides, methane, etc.) out of foundations cannot be done by building hole-free foundations because hole-free foundations cannot be built. Soil… Read More

Joseph Lstiburek's classic list of building practices not recommended for hot-humid climates. This list was first posted on Building Science Corporation's website in 1997.10. Vented Attics and Vented… Read More

This list contains some of the basic characteristics that should be met in all high performance homes. It has been used as our baseline criteria for all of BSC’s Building America projects.This list,… Read More