Thread: What kind of Roof....
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Old 07-17-2018, 09:12 PM   #12
ctbruce
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Location: Kansas City
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Quote:
Originally Posted by xrated View Post
So how do you determine which is which?
Glad you asked. Here is the easy way.

https://youtu.be/XGLSiG88S5c

Also, since you're taking your garage vent out, you'll have access to the membrane to check it.
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