I am fitting a upvc window into a wooden dorma window frame which has had fiberglass coating over it and lipped around into the opening. The window and cill when in place are very tight. Is it necessary to have a gap at the top and bottom to provide room for expansion?
Expansion gap around upvc windows
- Thread starter Ba55er
- Start date
Sponsored Links
It depends on the size of the window really. I believe PVC expands and contracts approx 1.6mm per linear meter in length.
Ideally its recommended to allow 5mm for expansion.
If the window is fairly small I wouldn't worry about it.
You could always cut the ribs off the side/sides of the window, They are only there to clip on addons which would give you 4-10mm.
Ideally its recommended to allow 5mm for expansion.
If the window is fairly small I wouldn't worry about it.
You could always cut the ribs off the side/sides of the window, They are only there to clip on addons which would give you 4-10mm.
Thanks . The window is little more than 500mm wide so should not be too much of a problem from what you have said. Useful to know the I can loose the edges off the frame that should allow me to get a bead of silicon around the edge.
Thank you that's helpful.
What tool would be best to take the edges off cleanly?
Thank you that's helpful.
What tool would be best to take the edges off cleanly?
Sponsored Links
A normal panel saw will do the trick
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
