Does rubber-plastic insulation not require a moisture barrier? ?
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Does rubber-plastic insulation not require a moisture barrier? ? Do other insulating materials such as foam glass and polyurethane also require a moisture barrier? Is this statement correct? ? ? Why? ? Closed pore rate? ? Looking forward to answers from experts. . .
It’s necessary to wrap aluminum foil tape around the outer layer
Aluminum foil tape? ? What is it? It’s not a moisture barrier, right? ? Is it a protective layer? ?
Well, yes. Protective layer, couldn’t see it clearly.
Rubber and plastic materials do not require a moisture barrier for insulation, as their closed-cell content is >95% (for example, in the case of Italian Fullex materials), and their moisture resistance factor (according to EN12086 standard) is >10,000. The aluminum foil tape mentioned earlier is used for fixing purposes during installation, and it does not serve as a moisture barrier.