Posted on July 11, 2011 by Scott Gibson
in Q&A Spotlight
Finding effective ways of beefing up under-insulated roofs is a perennial problem, affecting countless houses built to minimum energy standards.
Even roofs that meet minimum code requirements are susceptible to thermal bridgingHeat flow that occurs across more conductive components in an otherwise well-insulated material, resulting in disproportionately significant heat loss. For example, steel studs in an insulated wall dramatically reduce the overall energy performance of the wall, because of thermal bridging through the steel.
when only the rafter bays are insulated.