A finished attic should be insulated much like the rest of the house with insulation in the walls and ceiling.
How do i insulate my attic ceiling.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
Before insulating seal any air leaks and make roof and other necessary repairs.
To meet all three goals insulating your finished attic ventilating the roof and maximizing headroom use a combination of dense batt insulation rigid foam sheeting and air chutes.
Insulating the pitched roof.
To make insulating an attic easier grab a helper and set aside two days.
If your attic is part of your living space or you live in a home with a cathedral ceiling or other low pitch type ceiling then you will probably need to insulate at the roofline.
That means insulating the attic floor only not the walls and having vents in the roof.
The technically correct approach depends on a number of factors.
You also may need to insulate at the roofline if you live in a hot and humid climate.
Whether or not there is an inner roof lining and the total thickness of the roof structure.
If you ve reached your target depth but still have a few bags left over keep adding the material at an even depth throughout the space until all the bags your calculations called for are empty.
If it is located in a conditioned part of the house also remember to insulate and air seal your attic access.
The pros charge 1 500 to 2 000 to do a 1 200 sq ft.
How much does attic insulation cost.
Insulate and air seal any knee walls vertical walls with attic space directly behind them in your home as well.
You can do it yourself for about 500.
Blowing attic insulation isn t hard but it s dusty sweaty work.
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.
If you have an attic there are quick ways to insulate the ceiling from above after drywalling it.
Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.
With a finished attic insulation must help keep the attic areas comfortable.
Inspecting your attic insulation.
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.
To get the target r value from the product you chose use the number of bags your calculations showed that you needed to insulate your attic never fewer.