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How does concrete stop a draft that is going between a window frame and the wall itself? I've never had a draft through a fibercement/wood/fiberglass/drywall w
by rootusrootus 5y ago
How does concrete stop a draft that is going between a window frame and the wall itself?
I've never had a draft through a fibercement/wood/fiberglass/drywall wall, in any case.
- zdragnar 5y agoA poor fit, minor damage, or any defect allows convection within the fiberglass. R-value assumes zero air movement, which is why it is far less useful comparing fiberglass to foam or aerated cement. In real world settings, aerated cement will outperform fiberglass.
- Retric 5y agoThe same thing can happen when concrete cracks, which is quite common. All of this a question of basic building maintenance rather than the building materials chosen. Cracking is why single family homes generally avoid concrete walls in the permafrost.