Hi. I need to install a shower on an external wall which is plasterboard dot and dabbed on to blockwork. as you'd expect, there's a 1" ish gap between the PB and the blockwork. The wall is finished with tiles, and i'm not going to take the tiles down until I redo the bathroom entirely in a couple of years.
In the short term, i'm mounting it with exposed pipework with some proprietary chromed elbows, but i'm slightly worried about the robustness of the fixings.
I'd like to drill and fix into the blockwork, but then i'm worried about damaging the tiles/plasterboard by overtightening the fixings, and essentially drawing the plasterboard towards the blockwork.
is there a trick of the trade for this?
All I can think of is to try and put some expanding foam (or ideally something that sets more solid) into the fixing holes in an effort to fill between the PB and the blockwork immediately behind the fixing points so that I can tighten them up nicely without worrying about the damage I describe above.
Has anyone any suggestions?
Thank you in advance.
In the short term, i'm mounting it with exposed pipework with some proprietary chromed elbows, but i'm slightly worried about the robustness of the fixings.
I'd like to drill and fix into the blockwork, but then i'm worried about damaging the tiles/plasterboard by overtightening the fixings, and essentially drawing the plasterboard towards the blockwork.
is there a trick of the trade for this?
All I can think of is to try and put some expanding foam (or ideally something that sets more solid) into the fixing holes in an effort to fill between the PB and the blockwork immediately behind the fixing points so that I can tighten them up nicely without worrying about the damage I describe above.
Has anyone any suggestions?
Thank you in advance.