This website uses cookies to store information on your computer. Some of these cookies are used for visitor analysis, others are essential to making our site function properly and improve the user experience. By using this site, you consent to the placement of these cookies. Click Accept to consent and dismiss this message or Deny to leave this website. Read our Privacy Statement for more.
Print Page | Sign In | Join
Extrusion Applications's not just a residential issue anymore!

IECC Table 802.2(2)
This proposal eliminates the distinction between "factory assembled" and "site built" fenestration products, adjusts the U-factor for commercial glazed systems to a reasonable level that manufacturers of commercial glazed systems can meet while still providing systems that have the strength and durability needed in commercial buildings and revises the SHGC requirement for residential type windows to be consistent with the requirements for residential windows in Chapter 4 of the IECC and Chapter 11 of the IRC.

IECC Section 402.5.1
402.5.1 Maximum fenestration U-factor and SHGC. The area weighted average maximum fenestration U-factor permitted using trade offs from Section 402.1.3 or Section 404 in zones 4 through 8 shall be 0.48 for vertical fenestration and 0.75 for skylights. The area weighted average maximum fenestration SHGC permitted using trade-offs from section 404 in zones 1 through 3 shall be 0.50.