How To Insulate A Vaulted Ceiling 2x6

Straight bays 2x12 24 o c.

How to insulate a vaulted ceiling 2x6.

Have a newly framed vented cathedral ceiling to insulate. I m looking for some suggestions in terms of insulating. A how to on installing certainteed s fiberglass insulation batts into attic and cathedral ceiling applications. Check the joists and wall plates for any holes or openings.

Ceiling joists are the horizontal boards that span the width of the house resting on the outer wall plates and possibly on. Seal all ceiling openings. Insulate a cathedral ceiling by ensuring there is no opportunity for drafts to get into the room. To keep fiberglass batts from blocking airflow rafter baffles should be.

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. How to increase the interior ceiling joist for r38 insulation. In a vaulted ceiling however the only fresh air route lies between the insulation and the underside of the roof deck. The garage is 12x20 and has about a 27 degree pitch in the roof with 2x6s as rafters.

Stand on a ladder and using a caulk gun seal any areas where there is visible wiring or plumbing. If i retain the vaulted ceiling i ll need to furr out the 2x6 s to achieve the recommended r value. 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.