Envelope

Related Measures

• Nonresidential Opaque Envelope

  Revise the prescriptive opaque envelope requirements for all nonresidential and high-rise residential buildings.

• Residential High Performance Walls

  Reduces the prescriptive U-factor requirements for residential walls, which will reducing the amount of heat transfer through walls and thus reduce HVAC loads.

• Residential Ducts in Conditioned Space/High Performance Attics

  This measure proposes two alternatives to improve building thermal envelope and reduced HVAC distribution losses in residential buildings.

• Nonresidential Minimum Skylight Area

  The primary focus of this report is to reinstate the minimum skylight area requirement to section 140.3(c) while maintaining the overall simplicity of showing compliance. During the 2013 standards development there was an agreement that the calculation of effective aperture as an alternative method ...