Eurofast TRP 45 PIR Insulation Fixings 120mm Warm Deck Roof 150mm Celetex X 12
I have just done an extension and had to buy a box of 250 so have some left over they are to stop bridging the insulation they work a treat with a 80mm screw into joists you get 12 x NO screws please let me know if you want more than 12