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.
How to measure for insulation in attic.
How to measure your attic choose an install method first.
The thickness of the attic insulation depends on the value of heat transfer coefficient u.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Extra areas to consider.
Click the button to calculate the amount of insulation in square feet and man hours wall and ceiling fiberglass insulation needed for this job.
Phone camera to remember and record your measurements so put on a dust mask and gloves and grab your measuring stick or tape and a phone camera.
Insulation input length and width of area to be insulated.
Purios e which should be covered with attic is at least 21 cm.
Typically the square footage of the home plus 400 ft for a 2 car garage and add any.
Once you have measured a few spots around the attic calculate the r value by multiplying the average depth of your insulation in inches by the r value for your particular insulation type.