Insulating A 2x6 Vaulted Ceiling

If i retain the vaulted ceiling i ll need to furr out the 2x6 s to achieve the recommended r value.

Insulating a 2x6 vaulted ceiling.

I m in the early stages of building an amazing workshop to showcase tools over at tool box buzz and shop projects here at hci. In those days most builders stuffed cathedral ceiling rafter bays with fiberglass batts. Insulating a vaulted ceiling is similar to insulating exterior walls with one notable difference. The economics of insulating cathedral ceilings is more like walls expensive to insulate than attics cheap to insulate.

The new workshop will be located over my garage in an area that was framed using attic trusses when we built the new house. So some people go to crazy lengths trying to reach r 40 or r 50 in their cathedral ceiling while their. Insulated cathedral ceilings are a relatively recent phenomenon. Insulation radiant and vapor barriers best insulation technique for 2x6 cathedral ceiling i ve just finished tearing out a very poorly done finished attic.

Check the joists and wall plates for any holes or openings. Stand on a ladder and using a caulk gun seal any areas where there is visible wiring or plumbing. I live in vermont so it s recommended to have around r50 insulation in the ceiling. Seal all ceiling openings.

Insulate a cathedral ceiling by ensuring there is no opportunity for drafts to get into the room. R value insulation receives a rating. Insulating cathedral ceilings can be quite challenging. A how to on installing certainteed s fiberglass insulation batts into attic and cathedral ceiling applications.

But codes rarely make the distinction between attics and cathedral ceilings in the minimum insulation requirements. Attic trusses typically have a sloping ceiling. When renovating an older home whose roof rafters are only 2x6 really 5 1 2 x 1 5 in dimension the available space for insulation and ventilation is limited therefore limiting the options for a combination of good under roof ventilation and high insulation r values in the cathedral ceiling. I m looking for some suggestions in terms of insulating.

The garage is 12x20 and has about a 27 degree pitch in the roof with 2x6s as rafters.