I used FebTank to render the inside of a solid brick dwarf wall recently - base of an old victorian greenhouse. Two coats applied a day apart including 6" onto the concrete floor.
At one end the wall is mostly below ground level and when we last had a few days of proper heavy rain, I noticed this looking visibly darker and a bit patchy before drying out. There looks to be a little bit of salt coming through (like damp plaster). Does this indicate the tanking has failed, or might need thicker coverage... if so can I add another coat or two now it's been on a few weeks?
I plan to clad internally with PIR/plasterboard and obviously don't want to hide an unsolved problem.
This is what it looked like when I finished applying, that end wall is the troublesome part though I don't have a pic from when it rained heavily after drying:
At one end the wall is mostly below ground level and when we last had a few days of proper heavy rain, I noticed this looking visibly darker and a bit patchy before drying out. There looks to be a little bit of salt coming through (like damp plaster). Does this indicate the tanking has failed, or might need thicker coverage... if so can I add another coat or two now it's been on a few weeks?
I plan to clad internally with PIR/plasterboard and obviously don't want to hide an unsolved problem.
This is what it looked like when I finished applying, that end wall is the troublesome part though I don't have a pic from when it rained heavily after drying:
