Insulate Cathedral Ceiling With Ridge Vent

The right way to insulate attics and cathedral ceilings with batts using certain t.

Insulate cathedral ceiling with ridge vent.

I want to cut the kneewall sheathing to fit between the roof rafters and up to rafter baffles seal any air intrusion points into the stud cavity with foam but still allow soffit to ridge ventilation. Cathedral ceilings are a feature in many homes that add to value to the house because the high ceiling tends to make rooms look larger. Our summers in northern california can be pretty hot amp i am looking to add more insulation to my attic the attic floor is insulated already there is a ridge vent there are 2 gable vents 1 has a fan there are 2 between rafter vents there are no soffits or eaves so no vents there. Existing is a fourteen year old roof with 2 of closed cell roofing foam with an acrylic elastomeric coating.

At insulation location for cathedral ceilings we describe a high labor method that combines providing an air barrier above fiberglass insulation in a cathedral ceiling to avoid heat loss by air movement in the roof combined with the addition of solid foam insulation to provide a much higher r value for the completed cathedral ceiling structure. Our plan is to put rigid board up between the 2x4 s caulk the edges and then hang sheetrock. It provides an open airy look and feel to the room and they are often in demand among home buyers. Once the rafter vents are in place you can install batt or rigid foam insulation and then finish the vaulted ceiling with drywall.

This is the tough part i encounter where the kneewalls meet the vaulted ceiling and roof. Below is 1x decking and 2x4 rafters. When renovating an older home whose roof rafters are only 2x6 really 5 1 2 x 1 5 in dimension the available space for insulation and ventilation is limited therefore limiting the options for a combination of good under roof ventilation and high insulation r values in the cathedral ceiling. A cathedral ceiling is a sloping and pointed ceiling which is usually high and open.

In a vaulted ceiling. Flat roof cathedral ceiling we re going to give it a try. In homes with flat ceilings and unfinished attics insulation doesn t interfere with fresh air entering soffit vents located in the eaves and exiting near the roof peak. This has long been known to be a myth and the roof ventilation of cathedral ceiling insulation has absolutely no affect on the temperature of your shingles or tiles.