got a patch of wall in our bathroom that [when painted] bubbles and flakes off.
i've been troubled by this for a while now, putting it down to the fact that the wall is an outside wall on the back of the property, which i dont think is insulated (cavity wall). its an old georgian building(?) like most terraced houses on our road. but i had a good look outside - i can only hang out of the window,(we're on the first floor, but the back part of the land slopes down, so we are actually on the second floor if you know what i mean) but what i can see is an old waste pipe sticking out from where this patch accumulates.
i think there must have been a sink there which has been moved and sealed off before we acquired the flat.
anyways, i thought 'how could this affect the wall in a way that would make the paint flake off?' i'll
take some images tonight, but what i really want to know is there anything i can paint/apply to the wall that will stop the ingress of any water - if thats the problem? the interior wall is covered in a porous grey plaster material.
i've tried waterproof PVA, but this bubbled and flaked off!
i've painted over the area again on the off chance that the PVA has done something. i should imagine it'd only take a week or so to show any signs of damage.......
next thing is our toilet. occasionally i find a small pool of water directly below the corners of the cistern. could this be down to condensation building up on the outside of it? or would it be wise to take it apart and replace the large o-ring seal that connects the cistern to the toilet basin..?? there is also a collection of blue/green residue that seems to come from inbetween the cistern and top of the toilet basin like copper oxide...
i've been troubled by this for a while now, putting it down to the fact that the wall is an outside wall on the back of the property, which i dont think is insulated (cavity wall). its an old georgian building(?) like most terraced houses on our road. but i had a good look outside - i can only hang out of the window,(we're on the first floor, but the back part of the land slopes down, so we are actually on the second floor if you know what i mean) but what i can see is an old waste pipe sticking out from where this patch accumulates.
i think there must have been a sink there which has been moved and sealed off before we acquired the flat.
anyways, i thought 'how could this affect the wall in a way that would make the paint flake off?' i'll
take some images tonight, but what i really want to know is there anything i can paint/apply to the wall that will stop the ingress of any water - if thats the problem? the interior wall is covered in a porous grey plaster material.
i've tried waterproof PVA, but this bubbled and flaked off!
i've painted over the area again on the off chance that the PVA has done something. i should imagine it'd only take a week or so to show any signs of damage.......
next thing is our toilet. occasionally i find a small pool of water directly below the corners of the cistern. could this be down to condensation building up on the outside of it? or would it be wise to take it apart and replace the large o-ring seal that connects the cistern to the toilet basin..?? there is also a collection of blue/green residue that seems to come from inbetween the cistern and top of the toilet basin like copper oxide...