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"Whenever I need insulation work done on my shows or for my construction company, it’s Insta I call." ~ Bryan Baeumler

Is a layer of spray foam a good idea before installing blown attic insulation?

A layer of 2lbs spray foam is a great idea before installing blown insulation into an attic. Spray foam to the attic deck provides the following;

  1. A seamless blanket of air barrier protection
  2. Seals all cracks and gaps that potentially leak moisture into the attic
  3. Provides a vapor barrier
  4. Stiffens and hold plaster ceiling together; more durable