Old Insulation In Attic Types

5he house was built in 1944 and is northern virginia.

Old insulation in attic types.

They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. Closed cell and open cell aka 2 pound and pound respectively. 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. Old attic insulation types.

The types of insulation that were most commonly made with asbestos are loose fill also called blown in insulation. Both can be added to uninsulated attics or layered over existing material. It s considered a very natural product and does not contain asbestos. If your attic or wall insulation is in batt or blanket form whether it s fiberglass cellulose or another material you generally don t have to be concerned about asbestos.

In particularly cold climates you might go up to r 60. Another way to determine what type of insulation you have in your home is to look at the insulation itself. Loose fill or batt the common term for blanket insulation. First you should understand the different types of insulation.

There are five main types of insulation that you may encounter. Loose fill insulation consists of natural or man made fibers that are blown into the ceiling cavity. It looks to be a white batt type insulation. That is the loose granular insulation called vermiculite.

I suspect the insulation is original. Your home s r value score will guide you toward the type of insulation you need. Consider the key characteristics. Other insulation balsam wool is a shredded wood product treated with borax as a fire retardant.

Batt or blanket insulation is made from glass or cotton fiber and comes in roll form usually in widths of 16 or 24. For diy attic insulation you ve got two choices. I am trying to identify the type of insulation in my attic. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

In general an attic s r value should be between r 30 and r 49. There are three types of blown in insulation. There is one type of older insulation that has a significant possibility of being contaminated with asbestos. Loose fill insulation comes in a variety of materials.

The three most common types of blown in insulation are loose fill fiberglass cellulose and rock wool each with its own pros and cons. Spray foam attic insulation. Choose from two types. Due to the age it disintegrates into dust when i compress it between my fingers.

Spray foam offers the best attic insulation performance available. For example if the insulation is loose fill grey soft and without a shine you probably have cellulose insulation.