0 Helpful?

I applied rigid form insulation to the inside surface of the existing sheetrock in a bedroom

Prior to placing the insulation, I glued heavy fabric to the front to give it an aesthetic balance with the bedroom.

My concern: Will the form board out-gas causing harm to the occupants?

Asked by Robert Mela
Posted Jul 11, 2014 9:04 AM ET
Edited Jul 11, 2014 9:23 AM ET


2 Answers

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

Q. "Will the form board out-gas causing harm to the occupants?"

A. Probably not, but the rigid foam is definitely a fire hazard and a code violation. Building codes require rigid foam to be protected on the interior by a so-called thermal barrier equivalent in performance to 1/2-inch drywall.

In almost all cases, the easiest material to use for this purpose is 1/2-inch drywall, so that is what you should install to cover your rigid foam.

Answered by Martin Holladay, GBA Advisor
Posted Jul 11, 2014 9:22 AM ET


Oh! I see your point and much appreciated. I feel compeled to remove from the one wall since my 17 year old occupies the bedroom. Thanks for the quick response.

Answered by Robert Mela
Posted Jul 11, 2014 11:59 AM ET
Edited Jul 11, 2014 11:59 AM ET.

Other Questions in General questions

It's 2015 and they still build like this...

In Energy efficiency and durability | Asked by Peter L | Jul 1, 15

How do I get and keep air out of my geothermal loop?

In Mechanicals | Asked by Todd Conradson | Jul 1, 15

Boiler upgrade recommendation:

In Mechanicals | Asked by Joe Pavia | Jul 1, 15

Foundation capillary break & waterproofing

In General questions | Asked by Martin Frank | Jun 30, 15

Geothermal nightmare

In GBA Pro help | Asked by Colleen Nicholson | May 30, 13
Register for a free account and join the conversation

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