Underlayment - - - do I need felt? | DIY - Do It Yourself | Archive | Ask The Experts Forum

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I am building a small cabin. The roof has 5/8" plywood sheathing. I have covered the entire roof with Grace Ice and Water Shield. Do I need an ADDITIONAL layer of felt (30# or 15#) prior to installing the metal roofing panels?	Guest User 4/19/2009	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/13131/find/
No. I see no need to add anything else. Put the metal directly over the Grace.	Nate Libbey 4/20/2009	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/13132/find/
I agree.	Todd Miller Isaiah Industries, Inc. 4/22/2009	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/13133/find/
I also want to add that good attic ventilation will probably be important to this installation.	Todd Miller Isaiah Industries, Inc. 4/22/2009	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/13134/find/