Foam board the last option that i considered and the one i m using is foil faced polyiso insulation board.
Foam board ceiling insulation.
For pricing and availability.
Foam board insulation is easy to use and is a great diy way to add some insulation.
You don t want moist air leaking into the roof cavity.
It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches.
2 in x 4 ft x 8 ft.
The air space will be continuous down to the soffit vents and.
5 panels with 97 reviews.
Rigid boards are manufactured from either.
R5 radiant acoustic insulation kit stc 19 5 piece with 172 reviews and the amvic multipurpose high density insulation kit r10 2 3 8 in.
Regular ceilings are likely to be under attics with either batt insulation between the joist bays or in some cases rigid insulation between the rafters.
Some types of thicker foam board insulation are available but they may need to be special ordered.
Some of the most reviewed foam board insulation are the silverboard 24 in.
Use closed cell spray foam closed cell foam board extruded polystyrene such as dow styrofoam or foil faced iso board.
For pricing and availability.
Do no use a vapor barrier under the insulation.
2 in x 4 ft x 8 ft 1 faced polystyrene garage door foam board insulation.