Fiberglass over closed cell | Ask Mason Knowles - SPF Consultant | Spray Foam Technical Questions and Answers | SprayFoam Magazine Q&A Forums

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JosephF Posted: Dec 06, 2016 10:52 PM	Fiberglass over closed cell I have searched and searched and continue to find mixed answers. But, here it goes. I recently purchased a house that was renovated, and not finished. Currently all of my walls and roof areas are closed cell, spray insulated. In spots though, there is at times, on the roof, about a half inch of insulation. I have free fiberglass insulation on hand. Am I able to apply un-faced fiberglass directly to my roof, in an attic? Possibly with a spray glue as to not disturb the spray.
JosephF Posted: Dec 06, 2016 11:49 PM	I forgot to mention, I'm in north east Ohio.

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JosephF

Posted: Dec 06, 2016 10:52 PM

Fiberglass over closed cell

I have searched and searched and continue to find mixed answers. But, here it goes.
I recently purchased a house that was renovated, and not finished. Currently all of my walls and roof areas are closed cell, spray insulated. In spots though, there is at times, on the roof, about a half inch of insulation. I have free fiberglass insulation on hand. Am I able to apply un-faced fiberglass directly to my roof, in an attic? Possibly with a spray glue as to not disturb the spray.

JosephF

Posted: Dec 06, 2016 11:49 PM

I forgot to mention, I'm in north east Ohio.

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