Blow In Insulation Vaulted Ceiling

I have a mountain of insulation that i m creating and building this up.

Blow in insulation vaulted ceiling. 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. 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. Calculate the r value of your vaulted ceiling based on the existing insulation. Welcome to my world for the next couple of days or the next day or so.

In a vaulted ceiling however the only fresh air route lies between the insulation and the underside of the roof deck. Utilizing cellulose insulation contractors blow the cathedral ceiling cavity completely full and do away with the need for outside ventilation. Step 5 blow the insulation. 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.

But codes rarely make the distinction between attics and cathedral ceilings in the minimum insulation requirements. First closed cell foam has a 60 percent higher r value per inch than open cell 6 3 vs. 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. In fact as far back as 1975 ncima standard n 301 75 stated.

According to the seattle department of planning and development batts offer an r value of 2 to 3 per inch while. The higher r value reduces condensation when moist interior air hits the now less cold ceiling vice versa in summer with humid outside air. To keep fiberglass batts from blocking airflow rafter baffles should be.