[Bldg-sim] Fw: Mandatory Provisions 5.4

Rosenberg, Michael I michael.rosenberg at pnnl.gov
Tue Feb 7 07:45:10 PST 2012


Mandatory requirements means they are not available for trade off when using the procedures in Appendix C or Chapter 11 (ECB). Tables 5.5-1 through 5.5-8 are prescriptive requirements which can be traded off against. Hope that helps.

__________________________

Michael Rosenberg, CEM, LEED AP
Senior Research Scientist
ENERGY & ENVIRONMENT DIRECTORATE

Pacific Northwest National Laboratory
2032 Todd Street
Eugene, OR 97405
(541) 844-1960
michael.rosenberg at pnnl.gov<mailto:michael.rosenberg at pnl.gov>
www.pnnl.gov<http://www.pnl.gov/>


From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Ty Law
Sent: Tuesday, February 07, 2012 12:25 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Fw: Mandatory Provisions 5.4

Hi Everyone,

I am quite confused between what the ASHRAE 90.1 and the user’s manual tell us about Building Envelope Mandatory Provisions:

5.4 Mandatory Provisions
“5.4.1 Insulation. Where insulation is required in Section
5.5 or 5.6, it shall comply with the requirements found in Sections
5.8.1.1 through 5.8.1.9.” - ASHRAE 90.1-2007


Insulation (§ 5.8.1)
“The first set of mandatory requirements
addresses the proper installation and
protection of insulation materials. Issues
that are covered include compression of
insulation, installing insulation on sloping
ceilings and around recessed equipment,
and protecting insulation from physical or
moisture damage.”- ASHRAE 90.1-2007-User’s Manual


Does this mean that we could use insulation that is not as efficient as indicated in Table 5.5-1 through 5.5-8 as long as it complies with Section 5.8.1.1 through 5.8.1.9?

Your thoughts are highly appreciated.
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