Can Metal Roofs Be Installed Direct Over Old Shingles?

March 8, 2017 | Filed under: Battens or No Battens, Roofing Answers, Roofing Installation

Q: Is it OK for metal roofing to be screwed down directly on top of asphalt shingles, without any wood or other material between the metal and shingle?

A. You may wish to take a look at the videos in our Metal Roofing 101 video series … there may be some topics of interest to you. I am also attaching a copy of my ebook on How To Buy A Metal Roof.

Very few metal roofs must be installed with battens. However, I always suggest a layer of underlayment over existing shingles. It is an extra safeguard against water and it also protects the back side of the metal from abrasions against the shingle granules. Additionally, I interpret the International Building Code as requiring this underlayment. Not all people interpret the code that way though.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Do You Have a Metal Roof?
Tell Us About Your Experience.

I hear from a many homeowners about their metal roofing experiences, some good, some bad, and everything in between. Will you help others do their roofing research by adding a review of your metal roofing experience? It takes less than 5 minutes, and your investment of that time is greatly appreciated. .

Leave A Review