ᐅ Screws with flush-mounted attachments through the vapor barrier
Created on: 3 May 2025 19:42
F
Flitz86Hello everyone,
I am currently working on my interior finishing. My wall is a timber stud wall with a 6cm (2.4 inches) installation cavity attached on the inside.
As far as I can tell, the carpenters have screwed the installation cavity vertically only where a wooden beam runs inside the wall.
I need to reinforce the installation cavity in a few spots because built-in furniture will be installed there from the inside, and it wouldn’t hold well on the 15mm (0.6 inches) OSB.
At first, I tried using 70mm (2.8 inches) screws to avoid piercing the vapor barrier, but that didn’t hold.
With 100mm (3.9 inches) screws, the reinforcement is solidly fixed.
My question is, is it a problem that I have penetrated the vapor barrier from the inside? It’s definitely in a few places. However, the component lies flush from the inside, plus the screw sits in the hole.
Thanks for your feedback.
Chris
I am currently working on my interior finishing. My wall is a timber stud wall with a 6cm (2.4 inches) installation cavity attached on the inside.
As far as I can tell, the carpenters have screwed the installation cavity vertically only where a wooden beam runs inside the wall.
I need to reinforce the installation cavity in a few spots because built-in furniture will be installed there from the inside, and it wouldn’t hold well on the 15mm (0.6 inches) OSB.
At first, I tried using 70mm (2.8 inches) screws to avoid piercing the vapor barrier, but that didn’t hold.
With 100mm (3.9 inches) screws, the reinforcement is solidly fixed.
My question is, is it a problem that I have penetrated the vapor barrier from the inside? It’s definitely in a few places. However, the component lies flush from the inside, plus the screw sits in the hole.
Thanks for your feedback.
Chris
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