Metal Roof Cathedral Ceiling Insulation

Australia recommend a condensation risk analysis is undertaken to determine if a vapour barrier is required at the ceiling.

Metal roof cathedral ceiling insulation.

If you don t want to use sips or nailbase read this article tolearn the four basic approaches to insulating unvented roof assemblies. I m concerned about possible condensation on the underside of the steel roofing and i would like to know the best way to insulate this ceiling from the underside. The right way to insulate attics and cathedral ceilings with batts using certain t. 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. 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. 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. 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.

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. It provides an open airy look and feel to the room and they are often in demand among home buyers. Below is 1x decking and 2x4 rafters. Can i insulate with foam board.

A cathedral ceiling is a sloping and pointed ceiling which is usually high and open. Existing is a fourteen year old roof with 2 of closed cell roofing foam with an acrylic elastomeric coating. There is no plywood roof sheathing. 3 regarding roof insulation vs.

Our plan is to put rigid board up between the 2x4 s caulk the edges and then hang sheetrock. I need to insulate a cathedral ceiling that will be finished with tongue and groove pine paneling. 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.