![]() ![]() Ashrae 90.1 2016 envelope pdf code#Īs usual the updated Code allows RAs and PEs a choice of actual Codes to follow – the IECC based NYCECC, or ASHRAE Standard 90.1 as modified by the NYCECC Appendix CA (not just Appendix A anymore). In a previous newsletter I touched upon some of the changes between the IECC 2015 and the IECC 2012 and said I would follow up with a look at the new ASHRAE 90.1-2013 vs the old 90.1-2010 requirements. Now that we’ve had a chance to get to know the new ASHRAE it is safe to say making the choice between the two is now more nuanced than ever.īefore we go further I should clarify that the 90.1-2013 only applies to commercial buildings as defined by the Energy Code, which includes residential structures over three stories. ![]() With this month’s newsletter we’ll be focusing on updates to the building envelope established in Chapter 5. To begin they seem to have clarified (or muddied, depending how you look at it) the general exceptions regarding roof replacement / recovering. The old rules seemed to indicate that if I exposed the roof deck and/or insulation under my proposed scope of work, I’d pretty much have to update that roof area under my scope-of-work to comply with the roof insulation requirements established in Table 5.5-4. ![]()
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