Metal Roof Cathedral Ceiling Insulation

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

Metal roof cathedral ceiling insulation.

Flat roof cathedral ceiling we re going to give it a try. Metal roof with cathedral ceiling below rafters cr004a products enviroseal proctorwrap high tensile roof htr. It is a common misunderstanding that roof insulation is more important than wall insulation because heat rises hot air does rise but the temperature at your ceiling is at most a couple of degrees warmer than at the floor or walls. 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.

I need to insulate a cathedral ceiling that will be finished with tongue and groove pine paneling. There is no plywood roof sheathing. If i have a 9 5 inch rafter for a vaulted ceiling in a very cold climate could i put 2 inch solid insulation on top of the 2x4 purlins and seal with foam the the roofing paper on top then the metal roofing with pink batts under with the poly. Foil backed bulk insulation has a high risk of condensation if there is less than 2 3 of the total.

The house has steel roofing installed over 1x3 purlins. Unvented roof assemblies should be insulated either with air impermeable insulation rigid foam or spray polyurethane foam or with a combination of foam and air permeable insulation. Australia recommend a condensation risk analysis is undertaken to determine if a vapour barrier is required at the ceiling. A cathedral ceiling is a sloping and pointed ceiling which is usually high and open.

Can i insulate with foam board. While fiberglass insulation is an excellent and effective product for insulating most building cavities in areas where there is extra risk of trapping moisture and thus rot or mold infections such as crawl spaces and cathedral ceilings where roof venting may be absent or minimal we prefer to use closed cell foam insulation products or spray. Existing is a fourteen year old roof with 2 of closed cell roofing foam with an acrylic elastomeric coating. If you don t want to use sips or nailbase read this article tolearn the four basic approaches to insulating unvented roof assemblies.

Below is 1x decking and 2x4 rafters. It provides an open airy look and feel to the room and they are often in demand among home buyers. So the heat loss from conduction is about the same.