Here are the types of products in most homes.
Roxul: Non toxic rock wool insulation that is sound deadening and free from most chemicals. Stops rodents. Naturally resistant to moisture. Gray or brown in color. Very course. R3.7 per Inch.
Fiberglass blow in: Great for walls and other sealed cavities. but packs down over time. Several dangerous chemicals are present. Some are very toxic. Absorbs moisture, must be sealed from the environment. R 3.7 per inch.
Cellulose Blow in: Used by your local utility, lots of chemicals in this stuff. Settles quickly. Easily contaminated. Absorbs moisture, must be sealed from the environment. Absolutely the worst Insulation. Looks like shredded newspaper. R 3.6 per inch.
Fiberglass Blanket: Good quality economical Attic and Floor insulation. Toxic chemicals present, must be sealed.
Liquid Foam: 2-3 times the cost of other insulations. Used for walls. Soy based is safest. Will crack over time and lose trapped air / efficiency. Most is Soy or Corn based which is a food source for Rodents. R3.7 per inch. ( rigid polyurethane foam R6 per inch).
Green Energy Barrier: This is the newest product and highly recommended. Excellent for retaining heat in the winter and keeping heat out in the summer. Great way to finish off your insulation and keep it clean . Will extend the life of your insulation by decades and keep toxins out of your home. Stops rodents and insects. Resists mold. Requires no maintenance.
There are several Programs to help pay for the upgrading of your Home. Some are based on your Energy score and not your Income.
Links you might be interested in;
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