envhouse3 - FIBERGLASS inexpensive Made of silica sand...

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FIBERGLASS POLYSTYRENE FOAM inexpensive expensive Made of silica sand which is an abundant resource Excellent insulator Does not burn/shrink Good moisture resistance Good acoustic properties for sound absorption High structural strength Bugs do not like it so it is not chemically treated like cotton or wool insulation Flammable and can degrade when exposed to sunlight or temperatures over 165 °F US Environmental protection Agency requires all new fiberglass insulation to incorporate 20 percent recycled glass Dangerous when humans are exposed to fiberglass ASPHALT ALUMINUM Perform well in extreme temperatures and in areas where wind, water, and ice are prevalent Noisy when it rains/hails Low application cost Perfectly waterproof Low maintenance Can make water run down where you want it to Easiest to apply Reflects the sun’s rays and repelling heat Flexible and Strong Prevents heat cracks Fire and wind resistance Cost more than asphalt DOUBLE PANE HEAT MIRROR Vacuum between the glazes Superior insulation
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envhouse3 - FIBERGLASS inexpensive Made of silica sand...

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