16 Inch Dense Pack Cellulose Roof

What requirements are there for thermal insulation.

16 inch dense pack cellulose roof.

The insulation installer is recommending opening the soffits and ridge. Do not install cellulose below active roof leaks. The house is a cape with a shed dormer roof with front pitch 6 12 and shed pitch 2 1 2 12. Pull out any existing fiberglass or make sure that you can dense pack the cellulose to the outside.

Section r 302 10 of the 2012 irc requires cellulose insulation to pass the following tests. I am thinking about this and my assembly would look like. There are continuous soffit vents. Pull out the fiberglass and install r 20 dense pack cellulose by national fiber for the rafter bays at the cathedral and r 40 for the attic floor.

A properly applied dense packing of cellulose provides excellent r value to the home at 3 5 and 4 0 per inch dense packing cellulose helps stop air flow and improves home comfort. Consumer protection safety commission 16 cfr parts 1209 and 1404. Shingles roof felt ice guard osb taped seams dense pack cellulose intello drywall paint. The guy in the middle is jim fitzerald the absolute best guy in the world and he could not make it.

Address wet basements or crawlspaces before insulating your roof. Flat roof being dense packed the roof is opened up and cellulose is being blown into the roof cavity dense packing it. And while the low density fiberglass insulation used in attics rates a much lower r 2 0 per inch there is typically very little space restriction in attics. Fiberglass batts and cellulose used in walls earn similar conductive ratings between r 3 and r 4 per inch depending on density.

Because the space between the inner and outer walls creates a thermal break that reduces heat loss through the framing members the actual r value will. Flat roof there are a gazillion of these roofs that are uninsulated and need to be addressed. This is a technique that dense packs 3 7 lb of cellulose per cubic feet into existing wall and roof cavities. What is the r value of nu wool premium cellulose insulation.

However according to bohdan boyko a technical rep from u s. For instance a 2 1 2 inch gap between the inner and outer frames creates a total 10 inch cavity that when filled with dense pack cellulose achieves a nominal insulating value of around r 31. When you dense pack an unvented roof here are factors to control for quality and performance.