Insulating Attic With Low Pitch Roof

Low slope attics where space constraints limit insulating and air sealing while strong driving forces exist to adequately insulate and air seal attics low slope attics pose space constraints and make insulating and air sealing a challenge while many roof designs exist most designs closely resemble either a hip or a gable roof system.

Insulating attic with low pitch roof.

If your attic is part of your living space or you live in a home with a cathedral ceiling or other low pitch type ceiling then you will probably need to insulate at the roofline. Specify roof trusses or conventional framing deep enough for 12 in. Stage 2 of insulating a low slope roof. Eric dymond lives in a 1920s baltimore row house that needs a new roof.

He plans on replacing the low slope built up roof with an epdm membrane and the question is how to insulate it correctly. Of insulation plus room for an air gap of. There are lots of ways to insulate a low slope roof and most of them are wrong. Radiant heat from the sun beats down on the roof cladding all day.

In older buildings the usual method is to install fiberglass batts or cellulose on top of the leaky ceiling with a gap of a few inches or sometimes a few feet between the top of the insulation and the roof sheathing. You also may need to insulate at the roofline if you live in a hot and humid climate.