Building Performance

  • air leaks diagram (Source: US EPA)

    Air leaks waste money spent on heating and cooling.
    View larger version. (Diagram Source: US EPA)

  • thermal imaging the exterior of a building

    Thermal imaging can be used as part of the energy assessment to diagnose the building's performance.

  • infrared image of temperature difference where there is air infiltrating the home

    Air infiltration is the number one cause of heat loss. Here you can see the temperature difference where there is air infiltrating the home.

A building is a collection of systems, almost like a human body. The shell, or the building envelope, is like the building's skin. Hot and cold temperatures, moisture—all of these affect the building envelope as air and moisture move through the air pathways in the building. The location of these pathways will dictate how comfortable the interior spaces in the building feel. Sometimes the location of the air pathways can even damage your home. This damage could include mildew and mold growth or even structural problems.

Building performance is a set of measurable building characteristics including:

  • Durability
  • Moisture Management
  • Energy Efficiency
  • Indoor Air Quality
  • Structural Performance
  • Thermal Comfort

infrared photography is part of the energy assessment diagnostics Infrared photography is part of the energy assessment diagnostics. Poor air-sealing and inadequate insulation can be pinpointed using this process. Photos courtesy of The Snell Group.

infrared photography helps the energy auditor determine the source of drafts, moisture, and other symptoms of heat loss Infrared photography helps the energy auditor determine the source of drafts, moisture, and other symptoms of heat loss. Photos courtesy of The Snell Group.

"Building performance." Wikipedia, The Free Encyclopedia. 20 Nov 2007, 19:04 UTC. Wikimedia Foundation, Inc. 14 Oct 2008