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The 4 cm gap is a bit larger. It's hard to say that this is a small 5 mm , and I've seen an error of 6 centimeters. What's the solution?
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It's always a thing, and it's useless to look for it, whether it's qualified or not, whether there are legal standards.
Of course, you can do it, the high bottom only affects the aesthetics, and the heating effect has nothing to do with it! What's more, the underfloor heating is already a few centimeters higher! Even if there is an error in the end, as long as you use cement or keel leveling, it is very good!!
Unqualified. Bathroom waterproofing used to be made of rice. Now it is required to do it full, that is, to make the whole wall top. Of course, if you want to save money, you can also choose to only make the bathing area top. But other places should also be at a height of about meters.
Illegal! According to the existing building code, the width of the equipment and facilities installed in the fixed building (the sun room is a facility) shall not exceed the eaves of the building. >>>More
It should be one meter.
This is a matter of building quality. It should be understood from the developer that the main responsibility should be borne by the supervision department and the acceptance department!