Shower Floor Grout Looks Wet

We had a wet room installed about 8 months ago.

Shower floor grout looks wet.

The spots started spreading until the whole floor of the shower has dark colored grout although it is not even. Had the guy who remodeled the shower come look at it. Some grout has a sealer additive already in the mix. The contractor told me the shower is bullet proof however the grout looks wet and looks dirty.

So i decided to use another bathroom in the meantime. Ft shower is 5 by 3 there is a very strong fan that is on timer and is on for 30. It is a new build first floor bathroom new extension on older house with a. As soon as we started using the shower the grout again started darkening like it was wet.

Click to read complete blog post. The tiled floor has been laid for about 2 years and this problem has only just occurred in the last few weeks. The wet area is not caused by using shower as the shower screen protects this space. Hope you can help.

So we stopped using the shower let it dry out for a few days until the grout lightened up and then i resealed again. Its a large bathroom approx 150 sq. 48 hours later the spots are still looking wet but are not wet to the touch. The floor is tiled with large 60x60cm porcelain tiles laid on impey waterguard membrane and the shower tray is impey aquadec easyfit with the membrane laid over the top.

Keep in mind the lighter the grout the more it darkens simply from the humidity of the shower. He opened the wall to adjacent closet in the next room to assess the shower pipes and no leaks found. We had our guest bathroom shower remodeled one year ago 2 weeks ago my wife noted shower floor grout wet around the edges with some spots dry.