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CS-2009 EAp2:Minimum Energy Performance

Automatic sliding doors in 90.1-2007 and LEED 3.0 Projects

Paul Deinhofer

MSc

Schöberl & Pöll GmbH

LEEDuser Basic Member

1 thumbs up

Project location :

May 3, 2016

I am working on project whereat a big retail store wants to use automatic sliding doors for their shop entrances. According to ASHRAE 90.1-2007, 5.4 Mandatory Provisions -> 5.4.3 Air Leakage -> 5.4.3.2 Fenestration and Doors, the air leakage shall not exceed 2.0 L/s*m² for that product. The manufacturer of the doors states that it is impossible to meet this requirment (they say a limit of 5.0 L/s*m² would be possible). ASHRAE 90.1-2007, p.18: "Air leakage shall not exceed 5.0 L/s'm2 for glazed swinging entrance doors and for revolving doors and 2.0 L/s·m2 for all other products." The automatic sliding doors will be used in vestibules. As I interpret it, the requirement is still 2 L/s*m², right? Has anyone used automatic sliding doors that meets the requirement? Or any other suggestions to solve that problem? Thanks.

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Wed, 05/04/2016 - 15:23

Will they be used for the inside or outside of the vestibule? If outside then I agree that the requirement you note applies. You might want to look at 90.1-2013 as there are more detailed requirements for additional fenestration/door types.

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