Materials commonly used for the insulation of the roof deck include.
Insulating vaulted ceilings attic.
Check the joists and wall plates for any holes or openings.
If you re installing insulation directly under the roof like in a cathedral ceiling or attic ceiling make sure to leave about a 2 gap between the insulation and the roof sheathing.
Seal all ceiling openings.
Stand on a ladder and using a caulk gun seal any areas where there is visible wiring or plumbing.
Foil faced iso board can be cost effective insulation for finished attics and cathedral ceilings.
Be sure to seal around any pvc pipes as well.
Foam board insulation would be a more economical especially if you are supplying the labor see photo.
Insulating the roof is a priority if the ceilings of your home happen to be part of the roof deck as is the case with cathedral ceilings.
Insulating a vaulted ceiling is similar to insulating exterior walls with.
Before insulating vaulted attic walls you must provide an unobstructed route from the soffit vents to an exit vent to prevent damage to the roof from moist hot air.