Hi,
I'm thinking of going with Rehau Total70C triple glazed uPVC windows, with a height of 1500mm.
The documentation on the Rehau website suggests a maximum for side hung openings of 900x1500mm (WxH).
I would be interested in hearing from anyone who has used these frames with 3G and a height of 1500mm and whether they have functioned properly in day to day use.
Thanks