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Asphalt has been eliminated, of course it is harmful, especially after bathing with hot water, inferior asphalt will cause a pungent smell all over the bathroom, I have seen one.
DO WATERPROOF FIRST: WATERPROOF HEIGHT: THE WATERPROOF HEIGHT OF THE BATHROOM SHOULD BE MORE THAN 180-300MM, AND THE SHOWER AREA SHOULD BE MORE THAN 1800MM. >>>More
It has nothing to do with waterproofing. The tiles bulge up because there is no gap in the expansion, and then the tiles squeeze each other, and the tiles must leave a gap of about 1 mm between the tiles, just like the gap between the rails in the past. If the tile falls off, then there may be a problem with the waterproofing, and the adhesion of the tile will be poor after the waterproofing is done, and the tile will generally need to be treated with an interface agent. >>>More
Waterproof asphalt is toxic and can seriously affect human health. >>>More
After the bathroom is waterproofed, do you want to do a closed water experiment, listen to the master tell you....
Waterproofing still depends on waterproof materials, tiles have seams, you can go to see the tiles of Xinnanyue.