Attic Insulation Material Ratings

The main factors that impact the cost are.

Attic insulation material ratings.

From schools to businesses to family homes our insulation works everywhere. Let s say the insulation you ve selected has an r value of three per inch. Add insulation to attic. In general an attic s r value should be between r 30 and r 49.

According to home advisor insulating your attic can cost between 1700 to 2100. Most homes have some old or existing attic insulation already in their attic. Add insulation to attic. Recommended insulation levels for retrofitting existing wood framed buildings.

Measure the length and width of the area you need to insulate. Cellulose insulation is calculated based on the depth of the blown in insulation. Existing 3 4 inches of insulation. Inspecting your attic insulation.

Its expert engineering lets you create the most comfortable environment without compromising your design. 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. Cellulose a fiber insulation material with a high recycled content is blown into a home attic. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.

The various performance levels r 19 r 30 and r 38 is all made from the same insulation material only the thickness of the insulation differs in order to achieve different r values and performance. Type and material of your insulation. In particularly cold climates you might go up to r 60. Contractor or insulation installer s fee.

Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. Square footage of your attic. Insulation our building science makes insulation br smarter.

Cellulose insulation manufacturers association insulation materials run the gamut from bulky fiber materials such as fiberglass rock and slag wool cellulose and natural fibers to rigid foam boards to sleek foils. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Decide on the type of insulation to use.