Blow In Insulation Vaulted Ceiling

Utilizing cellulose insulation contractors blow the cathedral ceiling cavity completely full and do away with the need for outside ventilation.

Blow in insulation vaulted ceiling.

To keep fiberglass batts from blocking airflow rafter baffles should be. In a vaulted ceiling however the only fresh air route lies between the insulation and the underside of the roof deck. Step 5 blow the insulation. I have a mountain of insulation that i m creating and building this up.

Although many view this as a new method as stated previously many contractors have been doing this for years. Welcome to my world for the next couple of days or the next day or so. But codes rarely make the distinction between attics and cathedral ceilings in the minimum insulation requirements. Closed cell foam ceiling insulation in a vaulted ceiling offers substantial advantages over open cell.

The higher r value reduces condensation when moist interior air hits the now less cold ceiling vice versa in summer with humid outside air. Over here on this side you can see what it looks like to me right here is the ceiling and up in here is my little peep hole where i can see down in and i can blow mountains of insulation down there. First closed cell foam has a 60 percent higher r value per inch than open cell 6 3 vs. In fact as far back as 1975 ncima standard n 301 75 stated.

Calculate the r value of your vaulted ceiling based on the existing insulation. According to the seattle department of planning and development batts offer an r value of 2 to 3 per inch while. Typically cathedral ceiling insulation is blown in from the roof.