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Hello. Are purlins needed as an extra layer between underlayment and metal roof? We are concerned about condensation trapping moisture.
10/26/2023
Or copy this URL: https://www.metalroofing.com/spirit/comment/26430/find/The risk of condensation is generally inside the attic. If you have good attic ventilation that meets code, you should not need battens to create a thermal break on the roof. Here's a link to a webinar on this topic that I have done: https://www.youtube.com/watch?v=NYwD9CWveKY
Isaiah Industries, Inc.
10/27/2023
Or copy this URL: https://www.metalroofing.com/spirit/comment/26431/find/