During roof installation, the waterproofing membrane shows wrinkles and bubbles after application. What is the most likely cause and solution?
Correct Answer
A) Moisture in substrate; allow drying before proceeding
Wrinkles and bubbles typically indicate moisture trapped under the membrane. The substrate must be dry before membrane application to prevent these issues.
Why This Is the Correct Answer
Wrinkles and bubbles typically indicate moisture trapped under the membrane. The substrate must be dry before membrane application to prevent these issues.
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