When adding additional insulation you do not have to use the same type of insulation that currently exists in your.
Additional insulation in 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.
Cellulose is recycled newsprint treated with a fire.
Additional precautions steps and costs for asbestos insulation are not included.
Transfer existing loose fill insulation into container and dispose of responsibly off premise.
Fortunately adding insulation to an attic is a task well within the ability of.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.
Multiply the number of inches of insulation by the r value per inch.
The vapor retarder on top of or between layers of insulation can trap moisture.
For up to 1 foot thick layer of fiberglass wool and cellulose insulation only.
Check the attic walls and floors adjacent to an unheated space like a garage or basement.
Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face.
Depending on the difficulty of your job the size of your attic and the type of insulation material you.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
According to the u s.
Department of energy fibgerglass batts have an r value of 3 2 per inch while loose fill fiberglass.
Expect to pay an additional 85 per hour for this service.
In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment.
Both can be added to uninsulated attics or layered over existing material.
In some cases you may also need the expertise of an electrician to safely insulate around junction boxes or cables.
Expect to pay an attic insulation installer about 70 per hour.
For diy attic insulation you ve got two choices.
Material cost includes dump fee.
The higher the r value the better the thermal performance of the insulation.
Loose fill or batt the common term for blanket insulation.
Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
The structural elements are usually exposed in these areas which makes it easy to see what type of insulation you have and to measure its depth or thickness inches.
Most attics are insulated with blown in loose cellulose r 3 5 per inch blown in loose fiberglass r 2 5 per inch or fiberglass batts r 3 2 per inch.
Inspecting your attic insulation.