Contractor or insulation installer s fee.
Attic insulation material ratings.
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.
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.
According to home advisor insulating your attic can cost between 1700 to 2100.
Cellulose a fiber insulation material with a high recycled content is blown into a home attic.
In particularly cold climates you might go up to r 60.
Multiply the length times the width to determine the square footage of the space.
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.
Add insulation to attic.
Cellulose insulation is calculated based on the depth of the blown in insulation.
Recommended insulation levels for retrofitting existing wood framed buildings.
In general an attic s r value should be between r 30 and r 49.
The main factors that impact the cost are.
Existing 3 4 inches of insulation.
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.
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.
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.
Measure the length and width of the area you need to insulate.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Measure the area needing insulation.
From schools to businesses to family homes our insulation works everywhere.
Decide on the type of insulation to use.
Inspecting your attic insulation.
Add insulation to attic.
Existing 3 4 inches of insulation.
Type and material of your insulation.
Let s say the insulation you ve selected has an r value of three per inch.
