Adding Attic Insulation To Existing

In case you have had your attic insulation installed more than 15 to 20 years ago it is advisable to get it replaced.

Adding attic insulation to existing.

This is because your original insulation r value most likely has dropped from recommended 60 to 20 30. Blow in insulation until the hopper is empty. How do i add insulation to existing attic insulation. This effect is most important if the new insulation is more dense than the old insulation.

Check the attic walls and floors adjacent to an unheated space like a. This will slightly decrease the r value of the existing insulation. Measure how much insulation you already have. Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.

Move across the attic until you ve hit your desired height at every point. Estimating costs and. Loose fill or batt the common term for blanket insulation. Lay the batts perpendicular to the joists so.

Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. Believe it or not there are situations in a home when you should remove the old attic insulation before adding more over the existing and in this short video. Adding insulation to the attic with existing insulation pros and cons. Install fiberglass batts over existing batt insulation.

How to install attic insulation over existing insulation wear a long sleeve shirt gloves eye protection and a dust mask. When you stack new insulation on top of existing attic insulation the existing insulation is compressed a small amount. For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6. Make sure you use an unfaced batt one without a paper or foil layer so the insulation does not trap moisture in the ceiling.

Then pivot in place and do the same thing to the other side. So this thickness does not stop or prevent your home from heat loss. When you find out the r values of your insulation either from an energy assessment. Put on goggles and gloves to protect yourself while handling.

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. Check the depth using a tape measure. Adding insulation to an existing home inspecting and evaluating your insulation. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.