NickH

Dave, would appreciate a bit of advice on a small repair job I've got to do for an old client. They had a new kitchen fitted including tiling (not by me). They used glass tiles about 150 x 75, not particularly well done but ok, problem is that the tiles on the window cill have lifted due, I think, to expansion. They have come of the cill and bowed upwards, several have cracked. So whats the fix ? reset with SPF ? Leave expansion joint at each end ?. Appreciate your comments mate.
Cheers, Nick