Hi there, I'm working on stadium in Australia. For compliance with ASHRAE 90.1-2010, the window systems (frame + glazing) have to comply with the mandatory provisions (5.4) in ASHRAE 90.1-2010. Specifically, 5.4.3.2 Fenestration and Doors, 'shall be determined in accordance with AAMA/WDMA/CSA 101/I.S.2/A440, NFRC 400, or ASTM E283'. The architect has selected window systems which the air permeability has been tested according to EN 1026/12207 class 2 (we have received the certificate showing this). Is the EN standard acceptable for compliance? As the stadium is in Australia, it has to pass our local codes and we only need compliance with ASHRAE 90.1-2010 to get the LEED rating. If the EN standard is not acceptable, how should we proceed? Thanks!

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Wed, 07/19/2017 - 13:55

It sounds like that is the locally acceptable equivalent standard so it should be fine for LEED.

Fotis Kotsopoulos

LEEDuser Basic Member

0 thumbs up

Thu, 04/02/2020 - 11:31

According to EN 1026/12207, class 2 air leakage should be <1.4 m3/h/m2. ASHRAE 90.1-2010 defines maximum 1.1 m3/h × m2 for curtainwall and storefront glazing,tested at a pressure of at least 75 Pa or higher in accordance with NFRC 400 or ASTM E283.

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