Insulate Rafters Or Ceiling

Check the joists and wall plates for any holes or openings.

Insulate rafters or ceiling.

Make sure it is flush against the wood as even a 1 inch gap can cause a 20 percent heating loss. Cathedral ceilings must provide space between the roof deck and home s ceiling for adequate insulation and ventilation. This type of ceiling is insulated in the same manner that you would insulate a standard attic space. If you have an attic there are quick ways to insulate the ceiling from above after drywalling it.

If your attic is usable space but not lived in then you won t need to insulate the roof rafters as long as the ceiling floor that separates the roof from your living area below is insulated. Seal the insulation or the ceiling surface below against air leakage. Insulate a cathedral ceiling by ensuring there is no opportunity for drafts to get into the room. You don t want moist air leaking into the roof cavity.

For example cathedral ceilings built with 2x12 rafters have space for standard 10 inch batts r 30 and ventilation. Stand on a ladder and using a caulk gun seal any areas where there is visible wiring or plumbing. For rolled insulation place it between roof rafters. Start with the attic floor.

Do no use a vapor barrier under the. Because the simplest and cheapest way to insulate an attic is to add material to the floor. Seal all ceiling openings. Home ceilings are usually insulated in order to seal off the extreme temperatures in your attic.

If you don t have an attic however there is. Then feed the rolled insulation under wires and pipe if either is present. If you have to insulate around electrical boxes or cables then support from an electrician might be needed as part of the process too. This ceiling type involves the installation of a ceiling that is not attached directly to the roof rafters.

This can be achieved through the use of truss joists scissor truss framing or sufficiently large rafters. Place the insulation between the rafters or below them. One drawback to this is that the layer of insulation placed above the ceiling is missing which can subject the area of the house with the exposed rafters to extreme temperature changes. Apply insulation between rafters when finishing an attic into a heated room or when building a cathedral ceiling in the home.

This can give the house a more rugged open feeling. How to put insulation in a ceiling before drywall. Garages built without attics are also prime candidates for insulation.