Hello everyone,
Our interior fitter claims to have installed moisture-resistant drywall panels in the bathroom. However, these are (strangely) not green. Is that unusual, or do moisture-resistant drywall panels actually come in other colors?
He is having difficulty providing the certificate. I don’t want to remove the panels from the wall right now, since he says the designation is on the back…
Thanks
Our interior fitter claims to have installed moisture-resistant drywall panels in the bathroom. However, these are (strangely) not green. Is that unusual, or do moisture-resistant drywall panels actually come in other colors?
He is having difficulty providing the certificate. I don’t want to remove the panels from the wall right now, since he says the designation is on the back…
Thanks
The term "wet room" is not defined in any standard, so there are different interpretations.
Knauf refers to the green boards (GKBI according to DIN 18180 /H2) as being suitable for domestic wet rooms in their product information, meaning kitchens, showers, and bathrooms. It is therefore recommended to install the green drywall boards in these rooms, which, to my knowledge, is also the standard construction practice. It might be possible to use regular boards with additional water-repellent treatment, but this should be assessed by a professional.
Alternatively, gypsum fiber boards without additional impregnation can be used (e.g., Fermacell). These boards are more stable and heavier and offer good fire protection performance. In my renovation, I will likely use only these gypsum fiber boards.
Knauf refers to the green boards (GKBI according to DIN 18180 /H2) as being suitable for domestic wet rooms in their product information, meaning kitchens, showers, and bathrooms. It is therefore recommended to install the green drywall boards in these rooms, which, to my knowledge, is also the standard construction practice. It might be possible to use regular boards with additional water-repellent treatment, but this should be assessed by a professional.
Alternatively, gypsum fiber boards without additional impregnation can be used (e.g., Fermacell). These boards are more stable and heavier and offer good fire protection performance. In my renovation, I will likely use only these gypsum fiber boards.
Warning, a shower is a wet room!!!
It is important to distinguish between damp rooms and WET ROOMS; a shower, for example, is clearly a wet room and must be constructed accordingly. Officially, moisture-resistant drywall boards are no longer allowed in these areas (even applying a latex membrane does not suffice). Instead, cement-based boards (such as Aquapanel or Powerpanel H2O) must be used.
What you do at home is of course your own choice. A few years ago, I also installed moisture-resistant gypsum fiberboards with a shower waterproofing system like Lugato, but honestly, I wouldn't completely rely on that method.
The identification of gypsum fiberboards varies by manufacturer. Some have gray boards with green markings (fire-resistant boards, for example, are usually not red but often marked with red lettering).
It is important to distinguish between damp rooms and WET ROOMS; a shower, for example, is clearly a wet room and must be constructed accordingly. Officially, moisture-resistant drywall boards are no longer allowed in these areas (even applying a latex membrane does not suffice). Instead, cement-based boards (such as Aquapanel or Powerpanel H2O) must be used.
What you do at home is of course your own choice. A few years ago, I also installed moisture-resistant gypsum fiberboards with a shower waterproofing system like Lugato, but honestly, I wouldn't completely rely on that method.
The identification of gypsum fiberboards varies by manufacturer. Some have gray boards with green markings (fire-resistant boards, for example, are usually not red but often marked with red lettering).
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