0 Helpful?

Is it okay to put an unvented hot roof under a wood shingle roof?

I live on Cape Cod and I would like to put spray foam on the roof and then Sheetrock . There are wood shingles on the roof now and because I am in a historic district I have to keep them. Thank you for your help.
Randy

Asked by Randy Aubrecht
Posted Jun 12, 2014 8:43 PM ET

Tags:

2 Answers

Select your preferred way to display the comments and click "Save settings" to activate your changes.
1.

Randy,
Are the cedar shingles nailed directly to the plywood deck, or are the shingles nailed to skip sheathing?

If the shingles are nailed to skip sheathing, the next question is: are the skip-sheathing boards the only type of sheathing? Or is there continuous plywood under the skip sheathing?

Answered by Martin Holladay, GBA Advisor
Posted Jun 13, 2014 7:13 AM ET
Edited Jun 13, 2014 7:20 AM ET.

2.

The shingles are nailed directly to tounge and groove sheathing.

Answered by Randy Aubrecht
Posted Jun 13, 2014 9:27 AM ET

Other Questions in General questions

Options to make space for exterior insulation

In Green building techniques | Asked by Brad White | Aug 26, 16

Two condensation questions

In General questions | Asked by John Sexton | Aug 7, 16

Cellulose over 1/2" drywall and 24" o.c. furring strips

In Energy efficiency and durability | Asked by Marc Delisle | Aug 26, 16

following up on musty smell in our crawl space

In General questions | Asked by linda larochelle | Aug 26, 16

Gluing Polyiso to Metal and Plywood

In General questions | Asked by Brian Keefe | Aug 26, 16
Register for a free account and join the conversation


Get a free account and join the conversation!
Become a GBA PRO!