MBM specializes in blown in insulation which works best in attics, but may also be blown into walls and sub flooring. There are three main types of blown insulation which is cellulose, fiberglass, and rock wool.
A fourth option is a combination of fiberglass and rock wool called mineral fiber. Cellulose is made up of shredded newspapers treated with fire retardant. Even though it's "paper" and sounds ineffective, it's actually a well-established insulating material with a good R-value. Not only that, cellulose settles better into wall cavities. Another upside is its Green attributes since it is commonly made up of recycled telephone books, tax forms and newspapers.
Fiberglass, rock wook and mineral fiber are also made up recycled materials; however, it is more expensive than cellulose because it is lighter and stands up better to moisture.

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