How To Insulate A Vaulted Ceiling 2x6

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

How to insulate a vaulted ceiling 2x6.

Insulation radiant and vapor barriers best insulation technique for 2x6 cathedral ceiling i ve just finished tearing out a very poorly done finished attic. 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. Insulate a cathedral ceiling by ensuring there is no opportunity for drafts to get into the room. In a vaulted ceiling however the only fresh air route lies between the insulation and the underside of the roof deck.

I m looking for some suggestions in terms of insulating. The current plan is to use batts of some kind in the bays take care to air seal the interior surface avoid penetrations air seal the vent channel too bays fully sealed double prime the inside surface for vapor resistance. Check the joists and wall plates for any holes or openings. I live in vermont so it s recommended to have around r50 insulation in the ceiling.

Have a newly framed vented cathedral ceiling to insulate. Ceiling joists are the horizontal boards that span the width of the house resting on the outer wall plates and possibly on. The garage is 12x20 and has about a 27 degree pitch in the roof with 2x6s as rafters. Seal all ceiling openings.

To keep fiberglass batts from blocking airflow rafter baffles should be. Stand on a ladder and using a caulk gun seal any areas where there is visible wiring or plumbing. A how to on installing certainteed s fiberglass insulation batts into attic and cathedral ceiling applications.