Proper Way To Insulate A Vaulted Ceiling

That is create a vent channel above the insulation with low and high vents.

Proper way to insulate a vaulted ceiling.

Sprayed against the underside of the roof deck it seals against air movement eliminating the need for a vapor barrier or ventilation. Then insulate below with fiberglass or cellulose add a vapor retarder and your finish ceiling. Illustration by ian worpole. It provides an open airy look and feel to the room and they are often in demand among home buyers.

There are in practical terms two commonly found ways to attack the problem of moisture in cathedral ceilings. A cathedral ceiling is a sloping and pointed ceiling which is usually high and open. Insulated cathedral ceilings are a relatively recent phenomenon. The best way to install the batts is in 4 foot high rows from one side of the vaulted ceiling to the other.

In those days most builders stuffed cathedral ceiling rafter bays with fiberglass batts. First there is the traditional moisture control method in which insulation is installed on the bottom of the cavity and a ventilation area is left on top of the insulation so that moisture moving through the insulation enters the. Easy step by step instructions for vaulted ceiling insulation. Once the lower row is in place you might have to add another section to the scaffold.

But its open cell structure still allows moisture to escape. The craze for insulated cathedral ceilings and great rooms really took off in the 1970s and 1980s when examples began popping up like mushrooms after a warm rain. Vaulted ceiling insulation is quite a complex process when done without knowing the proper techniques. When tom insulates a cathedral ceiling or a finished attic he also turns to foam.

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. This article explains the requirements and takes you through the steps on insulating a vaulted ceiling.