Twinwall Polycarbonate Greenhouse Glazing is an ideal greenhouse repair solution. The thin twinwall polycarbonate sheet allows for a generous amount of UV to pass though while maintaining all of the qualities you would expect to find on a greenhouse. Polycarbonate sheet makes for a affordable and effective alternative to glass and this pack of 10 sheets can easily be cut to size on site, to suit all your requirements. Safer to carry than glass and easier to work with Lightweight and durable with excellent impact resistance Excellent thermal efficiency, 4mm has a U-value of 3.9 W/m²K, and 6mm has a U-value of 3.6 W/m²K
