Is this a great room with a cathedral ceiling or an attic space with a floor.
Insulating the underside of your roof.
An unvented attic differs from a conventional vented attic in that there is no direct venting of the attic.
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.
At the same time the areas below the roof benefit from increased comfort both during the winter and the summer.
An advantage of spray foam is it s quick whereas foam board needs to be cut and measured which can be a chore.
Then you could simply insulate the pitched roof.
In this way you prevent the heat from the rooms below escaping to the attic rooms above.
When hvac equipment is in the attic insulation and.
Use these questions to decide which.
If so fix that first.
In the winter your warm indoor air rises and will leave through the attic if it s not properly insulated.
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.
But the best solution is actually to insulate both the attic floor and the underside of the roof.
Do you already have a roof leak.
Yes you can spray foam the underside of your roof.
Insulating the underside of roofs making the case for the unvented attic assembly background.
Don t use spray foam to fix a roof leak.
You can then install.