Blow In Insulation Vaulted Ceiling

Closed cell foam ceiling insulation in a vaulted ceiling offers substantial advantages over open cell.

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. But codes rarely make the distinction between attics and cathedral ceilings in the minimum insulation requirements. 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.

Typically cathedral ceiling insulation is blown in from the roof. Calculate the r value of your vaulted ceiling based on the existing insulation. Step 5 blow the insulation. Although many view this as a new method as stated previously many contractors have been doing this for years.

First closed cell foam has a 60 percent higher r value per inch than open cell 6 3 vs. In order to do this you will have to remove pieces of the roofing material and drill a series of 2 inch holes across the structure in each framing cavity. Now we re going to do is blow cellulose in this hose all the way down to the cathedral ceiling bays and we have air baffles all the way down to the bottom so that air from the vents could get up and out the ridge vent. So some people go to crazy lengths trying to reach r 40 or r 50 in their cathedral ceiling while their money would have been better spent on better air sealing better windows more efficient heating system or increased wall.

To keep fiberglass batts from blocking airflow rafter baffles should be. According to the seattle department of planning and development batts offer an r value of 2 to 3 per inch while. In a vaulted ceiling however the only fresh air route lies between the insulation and the underside of the roof deck.