Add Blown In Insulation To Attic

Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.

Add blown in insulation to attic.

If you choose loose fill insulation you ll need to rent a machine to install it. Blow in the new insulation. 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. The type of material you use is up to you.

You can rent insulation blowers but some stores provide the machine at no charge when you purchase your insulation from them. In this case we worked with the insurance company and took care of packing out belongings in the attic. To determine whether you should add insulation. Once the material becomes wet it s very difficult to clean up.

To keep the blown in insulation from falling through the attic hatch opening make a 2x12 dam around the hatch perimeter. Because studs are spaced every 16 inches or so penetrations to add insulation must be made at the same intervals filling one cavity at a time. In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment. The negative thing about blown in insulation is that it makes the attic absolutely impassable when you re done and you need a lot more thickness of it because it has more air inside of it than you would if you used fiberglass bats.

Thickness must not be used as the sole factor in determining the r value of loose fill insulation particularly for attic insulation. Because blown in insulation which is fiberglass generally can go on top of the existing insulation. The situation was made much worse by the attic s blown in cellulose insulation. Cut two layers of r 19 fiberglass batt insulation slightly larger than the hatch and staple duct tape to the hatch edges to secure it in place.

However that service does add to the cost of restoration. Inspecting and evaluating your insulation. Blown in insulation can be added to attics and walls without the hassle. Loose fill blown in insulation is best for tight spaces or if your attic already has a layer of insulation that just needs to be topped off.

Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all. Check the attic walls and floors adjacent to an unheated space like a garage or basement. Remove old compacted insulation with a vacuum. What s more this type of insulation can also seal small gaps and spaces as it settles filling these sneaky spots where.