What two products or means address the mechanisms that transport water through a wall or roof cavity?
AnswerVapor barriers seek to limit water vapor diffusion through a wall or roof assembly, whereas air barriers address air leakage by stopping infiltration and exfiltration. However, air leakage is capable of transporting more moisture through the assembly than water vapor diffusion.
AnswerVapor barriers seek to limit water vapor diffusion through a wall or roof assembly, whereas air barriers address air leakage by stopping infiltration and exfiltration. However, air leakage is capable of transporting more moisture through the assembly than water vapor diffusion.
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