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.
Metal roof cathedral ceiling insulation.
It provides an open airy look and feel to the room and they are often in demand among home buyers.
I need to insulate a cathedral ceiling that will be finished with tongue and groove pine paneling.
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.
3 regarding roof insulation vs.
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.
The right way to insulate attics and cathedral ceilings with batts using certain t.
There is no plywood roof sheathing.
Flat roof cathedral ceiling we re going to give it a try.
Existing is a fourteen year old roof with 2 of closed cell roofing foam with an acrylic elastomeric coating.
The house has steel roofing installed over 1x3 purlins.
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.
Foil backed bulk insulation has a high risk of condensation if there is less than 2 3 of the total.
Metal roof with cathedral ceiling below rafters cr004a products enviroseal proctorwrap high tensile roof htr.
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.
So the heat loss from conduction is about the same.
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.
Can i insulate with foam board.
Australia recommend a condensation risk analysis is undertaken to determine if a vapour barrier is required at the ceiling.