A finished attic should be insulated much like the rest of the house with insulation in the walls and ceiling.
How to insulate a attic roof.
If you have a solid floor covering the roof rafters use the claw end of a hammer to pull the floor up in several locations and blow the insulation under the boards.
Insulate your attic to keep your heating and cooling from going through the roof along with your monthly budget.
The technically correct approach depends on a number of factors.
That means insulating the attic floor only not the walls and having vents in the roof.
Typically you will fill the insulation blower with the insulation and blow it between the attic floor joists.
How to insulate a finished attic.
If you re finishing your attic insulating it to the proper r value can cause a dramatic loss of headroom if you limit yourself to fiberglass batts.
Whether or not there is an inner roof lining and the total thickness of the roof structure.
If your attic is often used or perhaps you plan to convert it in the future you will need to insulate the inner surfaces of the roof.
Insulate and air seal any knee walls vertical walls with attic space directly behind them in your home as well.
You may also insulate your roof to help regulate the temperature in an attic that is a part of your living space.
Insulating the pitched roof.
It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow.
Materials commonly used for the insulation of the roof deck include.
Insulating the roof is a priority if the ceilings of your home happen to be part of the roof deck as is the case with cathedral ceilings.
If it is located in a conditioned part of the house also remember to insulate and air seal your attic access.
Water is insulation s enemy.
Box out light fixtures.
With a finished attic insulation must help keep the attic areas comfortable.
Then blow another layer on top of the roof rafters.
By steven fox photo.