Insulating Sloped Ceiling Finished Attic
A finished attic should be insulated much like the rest of the house with insulation in the walls and ceiling.
Insulating sloped ceiling finished attic. Use r 30 insulation for the ceiling and r 13 for the walls. How to insulate a finished attic. Staple insulation between the wall studs and ceiling joists image a. If so you can create a dropped ceiling with insulation between the new ceiling joists.
Check the joists and wall plates for any holes or openings. The basic space requirements for a finished attic boil down to the sizes of the finished rooms. A how to on installing certainteed s fiberglass insulation batts into attic and cathedral ceiling applications. Bib jan 21 15 at 16 32 it is a flat ceiling with a sloped roof over it.
For diy attic insulation you ve got two choices. If building a knee wall for storage like karl did with this project make sure to insulate that area as well. 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. Stand on a ladder and using a caulk gun seal any areas where there is visible wiring or plumbing.
Both can be added to uninsulated attics or layered over existing material. With a finished attic insulation must help keep the attic areas comfortable. Insulate a cathedral ceiling by ensuring there is no opportunity for drafts to get into the room. Finished is important to remember when you re measuring an empty attic space.
That means insulating the attic floor only not the walls and having vents in the roof. It needs a certain amount of loft to work properly. Seal all ceiling openings. Don t mash or compress the insulation into the space.
The attic floor which is the ceiling of the living space below often already is insulated. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. If it is and you plan to provide heating and cooling to the finished attic space you need to remove. Loose fill or batt the common term for blanket insulation.