Can I insulate under the roof deck, in my attic? My roof has only two vents (gable). What materials can I use?

Question

Can I insulate under the roof deck, in my attic? My roof has only two vents (gable). What materials can I use?

Asked by Victor

no soffits, no vents at eaves, only vents are the gable vents

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Answers

Erik Henry's picture

Noooo. Insulating under the roof decking will do nothing except decrease the life of your roof.

The best thing to do would be to install a solar powered roof vent fan that operates on a thermostat. Place the power vent mid way between the two gable vents.

For more information:

Read "Should we use open cell or closed cell SPF insulation on the underside of our attic roof in southeast Louisiana?" a Q&A answered by Rick Goyette.