BRANZ. Welcome to BRANZ



  BU540 Solar gain in housing

BU540.jpgThe sun provides a major source of heat for our houses, but it is often untapped because houses are not always designed to benefit from it. Excess solar gain can also be a nuisance as it can overheat the internal spaces.

It is important to consider conflicting aspects of using heat from the sun at the initial design stage of a new home or any major alteration to an existing home.

This bulletin covers:

  • measuring the sun's energy
  • using the sun in winter, including collecting, storing and retaining the sun's energy
  • reducing solar gain in summer, including solar control glass and films, building for shading, external building elements, landscaping for shading and
  • internal shading methods.

Publication date: October 2011 Keywords: environment, glass, glazing, heating, insulation, solar, window