Putting Insulation In My Attic

In general an attic s r value should be between r 30 and r 49.

Putting insulation in my attic. If your insulation doesn t measure up and you need more installation can be done as a weekend diy project or you can call a professional installer to handle the job. You can add loose fill on top of fiberglass batts or blankets and vice versa. 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. When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic.

Earlier this year i got a question about a home that had spray foam insulation in the 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. The answer depends on where you live the heating and cooling costs in your area your existing insulation levels local codes and more. Loose fill insulation is usually less expensive to install than batt insulation and provides better coverage when installed properly.

For diy attic insulation you ve got two choices. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. The first step is to make sure you ve sealed your attic bypasses. It needs to be unfaced.

In particularly cold climates you might go up to r 60. Both can be added to uninsulated attics or layered over existing material. If you use fiberglass over loose fill make sure the fiberglass batt has no paper or foil backing. In addition to making the unit hard to get to for service high attic heat can trigger the.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Loose fill or batt insulation is typically installed in an attic. See more on different types of insulation.

Let s say the insulation you ve selected has an r value of three per inch and. Does your attic insulation measure up. A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.

Nothing unusual about that. To find out if you have enough attic insulation measure the thickness of the insulation. Loose fill or batt the common term for blanket insulation.