Hi, does anyone know if there is an industry standard tolerance for double glazed units to be not flat / straight? The issue is if I put a straight edge across my sliding door units there is a clear gap of 3 - 5mm in the centre. As the air gap is supposed to be 20mm it is reduced a lot by the deflection. Surely there must be a ‘Standard’ that should be met.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!