- Fixing a window to a steel lintel
One of our upstairs windows was getting harder and harder to open. On investigation there was no lintel fitted above the window from new and the courses of bricks above had become loose and started sagging.
So we’ve had a builder out who has now fitted a lintel. Unfortunately due to how the lintel fitted on the courses of bricks the window isnt secured at the top and is very wobbly.
Any ideas on how to secure it to the lintel ??
Cheers.Posted 1 week ago
Thanks for the replies.
It’s a simple L shaped lintel for the outer course. The internal course has a concrete lintel.
There is now a gap of around 8mm between the lintel and the top of the uPVC frame.
I’ve tried to drill through the lintel but it’s solid and my drill bit isn’t long enough to reach through the window frame and the gap to get a decent bite at the lintel.
Would any of these self tapping fixings work ??
Thanks.Posted 1 week ago
Would these fixings work …..
The problem with foam is that it will expand and push down on the top of the frame making the window catch more and make it even harder to open and close.Posted 1 week ago
Problem with any fixing in to the lintel is going to be the brick above it which could foul the fixing if too long which will then stop you getting the glass in. Foam isn’t like it used to be and doesn’t expand at ridiculous rates as the old stuff. Personally I’d buy a gun some cleaner and a tin of gun grade, it’s far better and more controllable than the single use stuff.Posted 1 week ago
Thanks for the replies peeps.
The frame has been drilled in the window opening previously so I’m guessing it’s not an issue about the glass fitting.
The builder did tell me that the first row of bricks is hollow on the bottom face so I’m hoping that if I can get the right length fixing it shouldn’t interfere with the brick.
Also I only need to fix the frame and raise it around 2 or 3mm to stop it catching.
So if I can get two fixings in and then foam it that should be ok yes ??Posted 1 week ago
As a final thought has the plaster head been removed from inside, if so just get some frame straps from the window supplier, always the best option but not usually available to use on replacement windows due to not wanting to disturb the reveals
Unfortunately the plaster hasn’t been disturbed so reluctant to mess with it tbhPosted 1 week agoslackaliceSubscriber
I’ve never used a mechanical fixing through the head of a window but that’s not to say it’s bad practice to do so. Drilling into any lintel of any material is hard work.
Plastic or wood shims/packers knocked in will hold the frame steady and depending upon the size of the gap, I would use either frame silicon or foam to finally secure. The latter if the window hasnt been measured correctly and the gap is greater than 10mm or so.Posted 1 week ago
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