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Breather Membrane for Timber frame - Which side faces out?

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dunny1234

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I know i sound stupid, and maybe i am?????

I had a load of housewrap delivered, but there's no logos on it and both sides appear shiney. What side should face out?

Side A. is like the top of a waffle with miniture pits

Side B. is flat

I'm still not sure what side faces out?

Sorry to be a pain, but any help means sleep for me tonight, thanks

PLease help!
 

Dibs-h

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dunny1234":eo9yh0cv said:
I know i sound stupid, and maybe i am?????

I had a load of housewrap delivered, but there's no logos on it and both sides appear shiney. What side should face out?

Side A. is like the top of a waffle with miniture pits

Side B. is flat

I'm still not sure what side faces out?

Sorry to be a pain, but any help means sleep for me tonight, thanks

PLease help!
Flat side out.
 

jasonB

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The outside face as it is rolled is what goes against the structure, makes it easy to roll it out along the wall or a flat roof.

I've usually found the waffle side is out.

J
 

Dibs-h

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I've got a roll or 2 of Tyvek at home and will have a look. I'd assumed that the waffle side would be the underside as the smooth side would be easier for the printing and Tyvek is printed on 1 side.

However - Jase is correct, in that as you unroll the fabric, the face of the fabric that becomes visible is the outside face. Only exception I can see is, if there was a cockup at the factory and the rolls were wound incorrectly and then offloaded cheaply as seconds.

Dibs
 
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