- Three layers of R15 = R45
- It is a breeze to install and can be cut to size using an insulation knife or the handy dandy Roxul serrated knife pictured below
- It is fire retardant, water repellent, sound absorbent, and resistant to mold, mildew and rodents
- Roxul is made from stone wool (mineral wool) and recycled slag, and does not off gas
Click here for more information about Roxul insulation.