Measure how much insulation you already have.
Installing attic insulation over existing insulation.
Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
How do i add insulation to existing attic insulation.
Over the insulation install laying foil over on top of insulation on the attic floor this is probably the easiest method to install radiant barrier atticfoil is to lay the foil out over the existing insulation on the attic floor.
Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face.
Calculate how much you need.
Cost effective way to save energy with this old house general contractor tom silva.
Faced insulation should not be placed on top of existing insulation in the attic.
Install fiberglass batts over existing batt insulation.
To install fiberglass batts over existing insulation lay the batts perpendicular to the joists so they do not compress the insulation below.
See below for a shopping list and tools subscribe to this old house.
To install blown in insulation in existing walls holes are drilled at the top of each stud space usually on the exterior and material is blown in via a long flexible hose.
Put on goggles and gloves to protect yourself while handling.
Check the depth using a tape measure.
The hole is then.
This method can be used in any climate though it historically has been most popular in colder climates.
Choose your insulation type.
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Whether you live in a warm weather state as i do or in a cooler northern climate it s hard to stay comfortable and keep your energy bills in check if you don t have adequate insulation in the attic.