| 摘要 |
A wrapper, rolled up together with a roll of mineral wool insulating material such as glass wool or rock wool, is as wide and as long as the roll, and preferably 10 per cent longer, and is made from a material that can be used as a vapor barrier in conjunction with the mineral wool. A wrapper, rolled up together with a roll of mineral wool insulating material such as glass wool or rock wool, is as wide and as long as the roll, and preferably 10 per cent longer, and is made from a material that can be used as a vapor barrier in conjunction with the mineral wool. The wrapper is preferably 0.050 to 0.25 mm thick, possesses mechanical strength and fire resistance, and is impermeable to water vapor. It can be based on plastic, paper, a metallic material or a combination of these.
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