Hi, am a newbie on this site but we have a problem in our bathroom which I'm hoping someone can help with.
My husband is a very competent DIYer (renovated & extended 2 properties) but a couple of years ago he made a wet area for a walk-in shower which has now got a discoloured/mouldy floor.
The floor was concrete (left to dry for several weeks), he put the proper tanking membrane etc down & up the walls, following instructions correctly.
Then tiled with light coloured mosaic sandstone tiles on the floor, they came in sheets with a mesh backing (the walls were tiled with large ceramic tiles), he used the correct tile adhesive & separate grout as recommended by a respected tile shop in our town.
He then sealed the floor several times with the correct sealant for natural tiles.
There is a shower fan/light over the area which is used whenever the shower is used (usually twice a day), there are 2 radiators in the bathroom which are on in the winter from about 6am to 9pm, but not on in the summer.
Over time the tiles have discoloured to quite a dark shade where the water hits them & there is black mould on the floor, even though it is cleaned regularly. There is no mould on the walls.
Can anyone suggest what we can do please?
My husband is a very competent DIYer (renovated & extended 2 properties) but a couple of years ago he made a wet area for a walk-in shower which has now got a discoloured/mouldy floor.
The floor was concrete (left to dry for several weeks), he put the proper tanking membrane etc down & up the walls, following instructions correctly.
Then tiled with light coloured mosaic sandstone tiles on the floor, they came in sheets with a mesh backing (the walls were tiled with large ceramic tiles), he used the correct tile adhesive & separate grout as recommended by a respected tile shop in our town.
He then sealed the floor several times with the correct sealant for natural tiles.
There is a shower fan/light over the area which is used whenever the shower is used (usually twice a day), there are 2 radiators in the bathroom which are on in the winter from about 6am to 9pm, but not on in the summer.
Over time the tiles have discoloured to quite a dark shade where the water hits them & there is black mould on the floor, even though it is cleaned regularly. There is no mould on the walls.
Can anyone suggest what we can do please?