If I told you it has held 8mm thick 18"x12" slate panels against the inside of my chimney breast with a 10kw solid fuel range just 8" away for two years now, the back-up screws seem a whole lot less important right? That said I should still fit a few in high risk spots like the backs of hobs (I do know of a claim in this regards and it was a big Granite splash back!)thanks all, sticks like **** sounds the dogs! will try that with the back up of a few screws,anyone know the coverage rate?
