What Insulation For Vaulted Ceiling

Install vaulted ceiling insulation with batts.

What insulation for vaulted ceiling.

If you are looking for the best way to install your cathedral ceiling then there are some mistakes you ll have to avoid in order to prevent heat or. There are a few different options for installing insulation in a vaulted ceiling. Straight bays 2x12 24 o c. Foam board insulation would be a more economical especially if you are supplying the labor see photo.

But it s not a diy project. Ceiling insulation typical ceiling insulation involves spreading either loose fill or batt the term commonly used for blanket insulation within the attic or airspace of a home. Foil faced iso board can be cost effective insulation for finished attics and cathedral ceilings. In a vaulted ceiling however the only fresh air route lies between the insulation and the underside of the roof deck.

Cathedral ceilings were once popular due to their grandiose height and appearance but these days many people avoid it because it is difficult to get proper cathedral ceiling insulation installed. I m a homeowner in seattle. Inexplicably some well built vaulted ceilings complete with vents and fiberglass insulation have moisture problems. Bernice from midland ontario wants to know how to get more insulation into her vaulted or cathedral ceiling the common problem with structures like this that we call compact roofs is that there is not usually enough space for a lot of insulation and a lot of ventilation.

Seal all ceiling openings. A vaulted ceiling does not necessarily require roof insulation because there is an air cavity separating the interior of the home or conditioned space from the roofline. Check the joists and wall plates for any holes or openings. Insulate a cathedral ceiling by ensuring there is no opportunity for drafts to get into the room.

The drywall becomes stained the insulation becomes damp and the roof wood can even begin to rot. Have a newly framed vented cathedral ceiling to insulate. Spray foam is a very expensive option however. Utilizing cellulose insulation contractors blow the cathedral ceiling cavity completely full and do away with the need for outside ventilation.

The current plan is to use batts of some kind in the bays take care to air seal the interior surface avoid penetrations air seal the vent channel too bays fully sealed double prime the inside surface for vapor resistance. In fact when the only space you have is that left by a 2x8 or even a 2x10 you really can t do a perfect job of both. Although many view this as a new method as stated previously many contractors have been doing this for years. If space allows the easiest is to install firm insulation batts over the rafters.

In most cases however insulation will not help prevent moisture. Stand on a ladder and using a caulk gun seal any areas where there is visible wiring or plumbing.