Waterproofing prevents water damage in wet rooms.
It is an essential phase in any bathroom renovation because the wet room requires waterproofing to prevent structural water damage. The water proofing is always applied under the surface material, i.e. tiling. Whether or not a bathroom requires waterproofing can be determined by closer examination of the surface structures. As a general rule, the water proofing is updated in conjunction with any bathroom renovation.
Use certified products and a professional installer
The waterproofing layer must be durable, flexible and continuous with regard to component connections and penetrations. This keeps moisture from entering the structures.
Wet rooms are waterproofed in accordance with part C2 of the National Building Code prepared by the Ministry of the Environment. By using certified waterproofing products and professional installers, you can ensure that your wet rooms work as intended. To ensure an appropriate level of competence, you can request your installer to provide a waterproofing certificate issued by VTT or a training certificate provided by the product manufacturer.