How do you insulate an open ceiling?
Similarly, what is the best insulation for ceilings?
Better materials for attic roof insulation are rigid foam boards and spray foam insulation.
- Spray foam: Technically known as Spray Polyurethane Foam or SPF, spray foam is most commonly applied in the space between attic rafters.
- Rigid foam insulation: Rigid foam, like the SilverGlo® insulation from Dr.
Likewise, people ask, what type of insulation is best for cathedral ceilings?
Foam ceiling insulation is an excellent solution where moisture is a problem. Solve moisture and rot problems in insulated cathedral ceilings with closed-cell foam ceiling insulation. It fills and seals the space and doesn't absorb moisture.
Here are your top insulation choices for unvented sloped ceilings:
- Install 7 inches of spray foam on the underside of the roof sheathing and leave the rest of the rafter cavity open.
- Install 4 inches of spray foam on the underside of the roof sheathing and fill the rest of the cavity with fiberglass batts.