Interpretation #8003

Published September 27, 2017

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Original Request

Code Version
2014
Code
RESIDENT
Code Description
Chapter
9
Section
R905.10.5
Topic
Underlayment

Question

Is the intent of R905.10.5 to require underlayment for metal roofs installed on open frame purlins (steel, lumber or otherwise)?

Answer Published 09/27/2017 at 8:24 AM

Yes, unless the roof covering is specifically designed to be applied over spaced supports and the documentation addresses the issue in another manner.

Commentary

None