R45 Attic Insulation

Johns manville r 49 kraft faced fiberglass insulation batt 24 in.

R45 attic insulation.

Take for example the extreme case of the attic being 100 degrees hotter or colder than the conditioned space and suppose the attic is atop 1000 square feet of ceiling. Owens corning pink insulation is soft to the touch and easy to install. Insulated to r40 it loses 2500 btuh insulated to r50 it loses 2000 btuh a difference of 500 btuh. View the owens corning attic insulation 819 00 pallet 819 00 pallet standard delivery.

You get a free blown in machine rental with your insulation purchase. Homeowners prefer ecotouch pink fiberglas insulation because it maintains insulating power over time. Get a free 24 hour blown in machine. Input depth of existing blown in insulation in inches.

Ecotouch pink fiberglas insulation has outstanding thermal resistance for maximum energy savings. It makes adding insulation to your attic a breeze. Click the button to calculate the approximate r value for this job. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and an inch of blown cellulose in an attic has an r value of 3 2 3 7.

Set your store to see local availability add to cart. Model k4924 897 80 897 80. This calculator is to be used as an estimating tool only. As a benchmark one inch of solid wood has an r value of 1.

R values are cumulative meaning that if you place r14 insulation over an initial layer with an r value of 30 the insulation ends up being r45. We love our diyers so take up our incentive to improve your attic insulation situation yourself. Blown in insulation is installed using blowing machines. Kraft faced insulation has a vapor retarder that helps to control moisture.

Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system. Roxul safe 45 is a semi rigid stone wool insulation board ideal for firestopping in concealed spaces of multi unit residential buildings the roxul safe 45 product complies with the 2006 building code 9 10 16 3 2.