Attic Insulation Roll Sizes

Owens corning r 30 ecotouch pink unfaced fiberglass insulation roll 23 in.

Attic insulation roll sizes.

It prevents heat loss in cold climates and retains cool air in warm. From schools to businesses to family homes our insulation works everywhere. Since modern two by fours are not 4 inches the true depth of the wall cavity is 3 1 2 inches. Measure the area needing insulation.

If your current insulation is only five inches deep you will need to add seven inches of insulation to achieve the 12 inch r 38 rating. Its expert engineering lets you create the most comfortable environment without compromising your design. The main goal of attic insulation in the house is to keep the rooms below warm in winter and cool in summer. Owens corning ecotouch r 15 30 sq ft single faced fiberglass roll insulation 15 in w x 24 ft l item 821444.

Attic insulation is the easiest way to improve your house s energy efficiency. Owens corning attic insulation. Insulation for 2x4 walls most wall assemblies especially those in older homes are built with two by four 2x4 studs. Guardian r 13 kraft faced fiberglass insulation roll 23 x 32 61 3 sq.

Johns manville r 19 48 96 sq ft single faced fiberglass roll insulation 15 in w x 39 17 ft l item 179420. Add insulation to attic. Recommended insulation levels for retrofitting existing wood framed buildings. In most wall applications you will use r 13 or r 15 kraft faced fiberglass insulation rolls for these two by four stud walls.

R 38 is the industry standard and the minimum thickness for r 38 is 12 inches. Proper attic insulation helps regulate indoor temperature. Measure the length and width of the area you need to insulate. They come with or without a paper or foil facing that acts as a vapor barrier.

A guide to attic insulation. Use our roll insulation calculator to estimate the amount of wall insulation crawlspace insulation or attic insulation you need for your project. This flexible insulation material is most often packaged in rolls that come in various thicknesses and standard widths usually 16 inches and 24 inches to fit between joists or studs in a house s framing. Insulation our building science makes insulation br smarter.