Putting New Insulation In Attic
This is because there are no chemical interactions that are caused by mixing these kinds of insulation meaning there are no health concerns to worry about.
Putting new insulation in attic. A typical insulation project can range from 1 500 to 5 000 depending on the size of the project. Add the right kind of insulation when adding additional insulation you do not have to use the same type of insulation that currently exists in your attic. Before entering your attic make sure that the climb to the attic is safe and you wear a protective mask against the tiny fibers in some 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 recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. Being careful to walk only on the beams measure the depth of your insulation. Batt loose fill or roll insulation can be installed on top of existing insulation. The vapor retarder on top of or between layers of insulation can trap moisture.
Proper insulation should be between 10 and 16 inches deep. Block all vents in the attic floor with baffles making sure to extend the baffles at least four inches above the planned thickness of your insulation. In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment. 3 have a friend add material to the hopper.
Adding new insulation over old insulation. Position the new vent chute so the. Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face. In most cases homeowners will add new insulation over old insulation.
Pull back the existing insulation and use expanding spray foam the fire blocking type to seal any. Install or repair vent chutes. Pull the existing insulation away from the roof. We typically work through and seal the attic bypasses with the existing insulation in place olson says.
0but olson says in many cases the old insulation does not need to be removed which keeps costs down. These insulation levels will keep heated air from migrating out in winter. Blown in insulation in the attic seal attic bypasses.