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Where to finish breather membrane in door opening


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Hi All,

 

I have a (probably stupid) question, I've wrapped my SIPS garden office with a breahable membrane. The front is essentially a single large opening where a sliding door wil be installed in the new year. My question is where should the breahable membrane finish here? At the moment I have the membrane coming into the recess where the door will be installed (so it's just inside the room). I'm wondering whether I just wait until the door is installed and then cut back anything that is showing on the inside or whether there's a "proper" way of finishing it. I'm just worried about the membrane providing a route for water/moisture getting into the room but I also want to provide maximum protection to the external walls as well.

 

The attached pic (taken on an angle!) shows a side on view of the opening with a crude green line drawn showing the rough position of the installed door.

 

Thanks,


James

 

 

office diagram.jpg

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