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对几种材料的比较:
1. Cellulose: Pest and mold resistant. Good in wrapping around walls and structions, reduce ai infiltration. The biggest long-term performance concern with cellulose insulation is possible loss of fire-retardant chemicals. Because borates are water soluble, they can leach out if the insulation gets wet.
2. Fiber glass liners inside ducts were a problem because if it got wet it could become a breeding ground for microorganisms, and associated with health issue, example: skin allergy, cancer.
3. Mineral wool: While mineral wool was at one time the most common type of insulation, its market share was largely lost to fiber glass in the 1960s and 1970s. In the past few years, however, the product appears to have begun a comeback. "Mineral wool" actually refers to two different materials: slag wool and rock wool. Slag wool is produced primarily from iron ore blast furnace slag, an industrial waste product. Rock wool is produced from natural rocks.
4. Cotton: This type of insulation uses cotton and polyester mill scraps with plastic fiber added for three-dimensional loft and borates added for pest and combustion resistance. This insulation costs about 15 percent to 20 percent more than comparable fiber glass insulation. |
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