New construction with drywall in bathroom

[Stringfellow Hawke]

Of course, it's not good, but we must have some perspective, right? People have been building with regular gypsum for many years and only a few of these bathrooms encounter problems.

Insurance companies are quick to demand extensive measures to avoid damages.

 

[Plupp 23608]

If it's an area with several identical houses, it's likely that a constructor has been hired who has planned how the bathrooms should be built.

 

[Nanorch]

Now I'm taking the opportunity to bring up the thread a bit...

The information I've received now is that they follow GVK and when I read up on GVK, I interpret it as gypsum being okay since there are still no other acceptable solutions.

So, if GVK is okay, then my bathroom should be insurable despite the gypsum?

 

[Lymmeln]

What happens if you use Rubbox as a sealing layer, does pappgips get eliminated? http://www.trelleborg.com/upload/WP_se/Downloads (pdf format)/Annat/090123 godk underlag Rubbox.pdf

 

[hempularen]

Now I'll take the opportunity to lift the thread a bit...

The information I've received now is that they follow GVK and when I read up on GVK, I interpret it as gypsum being okay since there aren't any other acceptable solutions yet.

So, if GVK is okay, my bathroom should be insurable despite gypsum?

They can follow GVK if they follow GVK all the way. That is, there should be a waterproofing in the form of a sheet. I don't know exactly what GVK writes, but I've understood it as meaning that it must then be a welded plastic sheet on both floor and wall, and you can if you wish cover it with ceramic material (provided that the chosen sheet is approved for tile adhesive, as it degrades certain brands of sheets).

 

[Elvis69]

What happens if you use Rubbox as a waterproof membrane, does paper drywall get excluded? [link]

This whole discussion about wet rooms can be summed up with "it depends"! It depends on what your insurance company says, it depends on what surface you're going for, it depends on which industry regulations you or your tiler work by, and it depends on which waterproof membrane is to be used.

1. Usually, the insurance company will tell you to follow current industry regulations and the supplier's instructions.

2. If you're going to install a mat, then the matter is settled because GVK even approves of paper-covered drywall behind it.

3. If it's tiles you're dealing with, it depends on which industry regulations are to be followed, which in turn depends on where the tiler or floor installer is affiliated. If someone affiliated with GVK is doing the work, it is OK to use paper-covered drywall, provided the waterproof membrane is a foil-based membrane. However, if it's a rolled waterproof membrane, GVK recommends using an inorganic board. If a craftsman affiliated with BKR is to do the job, it is not OK to use paper-covered drywall, but inorganic boards are acceptable.

4. Lastly, I'd like to clarify that it's not gypsum boards in general that are prohibited according to BKR, but rather paper-covered gypsum. Thus, it is completely OK to use, for example, Norgips Humid Board as suggested earlier in the thread.

The answer to the question of whether paper drywall gets excluded therefore depends on whether your tiler is affiliated with BKR or not.