Hi folks,
Having a bit of a crisis of confidence with a mirror wall. Never worked with huge sheet glass before and I'm starting to think I might've bitten off more than I can chew. I wonder if anyone in the know can tell me it'll (probably) be alright, or if not point me in the right direction?
The plan is to have four 4mm 8x4 mirrors, trimmed a few inches short of the full 8', wall-mounted to cover the entire length of one wall (brick/plaster). The wall itself is nowhere near flat, so I was planning to glue the mirrors to 12mm ply and mount the ply to 2x1 battens running along the length of the wall top and bottom, then fill the gap between the wall and the ply with polystyrene.
I've got as far as doing a test-mount with the plywood on its own. After fixing the battens I've put threaded inserts in them, and used M6 machine screws (12 per sheet - 6 top, 6 bottom) to mount the ply. It's all perfectly sturdy, but now I've got to the stage where I'm ready to order the mirrors and polystyrene backfill, I'm looking at the boards and noticing every slight warp and bend, and starting to worry that the ply might shatter the mirrors .
The way I see it there are 3 possibilities:
1) I'm worrying over nothing
2) I need to get thicker ply and/or thicker mirrors
3) I should cut the possibility of a million years bad luck and shell out for acrylic mirrors.
Thanks for reading and apologies for such a long post!
Having a bit of a crisis of confidence with a mirror wall. Never worked with huge sheet glass before and I'm starting to think I might've bitten off more than I can chew. I wonder if anyone in the know can tell me it'll (probably) be alright, or if not point me in the right direction?
The plan is to have four 4mm 8x4 mirrors, trimmed a few inches short of the full 8', wall-mounted to cover the entire length of one wall (brick/plaster). The wall itself is nowhere near flat, so I was planning to glue the mirrors to 12mm ply and mount the ply to 2x1 battens running along the length of the wall top and bottom, then fill the gap between the wall and the ply with polystyrene.
I've got as far as doing a test-mount with the plywood on its own. After fixing the battens I've put threaded inserts in them, and used M6 machine screws (12 per sheet - 6 top, 6 bottom) to mount the ply. It's all perfectly sturdy, but now I've got to the stage where I'm ready to order the mirrors and polystyrene backfill, I'm looking at the boards and noticing every slight warp and bend, and starting to worry that the ply might shatter the mirrors .
The way I see it there are 3 possibilities:
1) I'm worrying over nothing
2) I need to get thicker ply and/or thicker mirrors
3) I should cut the possibility of a million years bad luck and shell out for acrylic mirrors.
Thanks for reading and apologies for such a long post!