Iecc Roof Insulation Requirements

The ibc requires removal of the existing roofing materials down to the deck and installing a new roof covering assembly.

Iecc roof insulation requirements.

The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures. Specific insulation requirements of section c402 2 thermal requirements of either. The iecc requirement above is limited to those buildings where the roof assembly contains above deck insulation and is part of the building s thermal envelope.

A minimum r 3 5 thermal spacer block is placed above the purlin batt and the roof deck is secured to the purlins. Roof replacement is a defined term in the i codes. R value based method of section c402 1 3 u c and f factor based method of section c402 1 4. The second r value is for unfaced fiberglass insulation r 13 r 19 batts installed parallel to the purlins.

R 13 r 13 the first r value is for faced fiberglass insulation batts draped over pulins. Roofing specific requirements of iecc 2015 may 18 2017 10 arizona roofing contractors association webinar tapered insulation international energy conservation code 2015 edition c402 2 2 roof assembly.