Do you already have a roof leak.
Insulating the underside of your roof.
Yes you can spray foam the underside of your roof.
You can then install.
In some cases you won t be able to insulate the underside of the roof itself but rather the attic floor.
In this way you prevent the heat from the rooms below escaping to the attic rooms above.
At the same time the areas below the roof benefit from increased comfort both during the winter and the summer.
Use these questions to decide which.
In addition to installing the foam board on the underside of the roof deck you can attach it to the bottom edges of the rafters in the same manner you would hang drywall.
Insulating the underside of roofs making the case for the unvented attic assembly background.
If so fix that first.
When hvac equipment is in the attic insulation and.
These circumstances cause your heater and air conditioner to work overtime and your utility bills will spike.
Don t use spray foam to fix a roof leak.
But the best solution is actually to insulate both the attic floor and the underside of the roof.
If you re insulating the roof directly to insulate the roof itself you either use spray foam or retrofit with it with rigid foam board.
Then you could simply insulate the pitched roof.
Advantages of unvented attic assemblies.
In the winter your warm indoor air rises and will leave through the attic if it s not properly insulated.