Settled Insulation In Attic

It needs to be unfaced.

Settled insulation in attic.

The two commonly used types of blown in attic insulation are cellulose and fiberglass. In walls standard practice is to install cellulose insulation at 3 0 to 3 5 pcf. If your existing attic insulation has settled you can address the problem with additional batt or rigid foam insulation. To make insulating an attic easier grab a helper and set aside two days.

But saving 1 000 or more with blown in ceiling insulation will make up for your aching back. Additionally professional insulation installers must display a similar chart in the attic verifying the required depth of the insulation has been met. Because it is applied so thickly it cannot settle. When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic.

You can add loose fill on top of fiberglass batts or blankets and vice versa. As a loose fill insulation cellulose provides high insulating values represented by its higher r value and it creates a good barrier against air leaks and infiltration. The insulation works by preventing heat transfers through millions of tiny air pockets. By the end of the weekend you re going to be sore and tired.

However like other loose fill insulation it also has a tendency to settle over time reducing its r value and its ability to prevent air movement. Blown in fiberglass attic insulation is as the name would suggest blown into the attic under high pressure using a hose as opposed to blanket or batts of insulation which are laid down in large sections in an attic. For an r value between 38 and 49 the average person spends about 1 50 each square foot. The cost of blown in insulation is determined by which material you decide on the r value needed and the space of your attic.

Cellulose is a natural wood product and is made primarily from recycled newspaper. Don t forget to factor in whether you will be renting a blow machine or hiring someone to do it for you. If you use fiberglass over loose fill make sure the fiberglass batt has no paper or foil backing. This process is often called dense packing it prevents settling in wall cavities.

Attic insulation settling is this a common occurrence with blown fiberglass. One for attic prep and the second to actually blow the insulation.