Picking the right screws for polycarbonate roofing
Picking out the right screws for polycarbonate roofing is usually the last thing people think about, but it's actually the most important part of the whole build. If you use the wrong fixings, you're basically asking for leaks, cracks, and a whole lot of noise every time the temperature changes. Polycarbonate isn't like metal or wood; it's a bit of a "living" material in the sense that it expands and contracts a lot more than you'd expect. ...