ice dam membrane | General Discussion | Archive | Ask The Experts Forum

This topic has been closed by the administrator. Comments are no longer accepted.

One of my metal roofing bids includes using ice dam membrane on the entire roof deck. Is there any draw back to this? It sounds like a good idea to me.	richard sprecker 12/17/2009	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/14204/find/
It will eliminate any breathability through your roof deck. Therefore, I encourage making sure you have good attic ventilation beneath it.	Todd Miller Isaiah Industries, Inc. 12/19/2009	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/14205/find/
I have attic ventilation but not sure if it's a 1 to 300 ratio. Since I live in an area that has no snow or ice dam issues, is the membrane that much better than a synthetic underlayment? Thanks	richard sprecker 12/19/2009	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/14206/find/