Draw ducts / grooves onto the wedi Building Board for installation of the heating system.
Cut grooves using a router. Cutting width should be the same as the pipe width; cutting depth should be at least 4 mm deeper. Make sure at minimum a remaining wedi board foam thickness of 6 mm remains intact below the pipe.
Apply wedi’s wide self adhesive reinforcement tape over the installed ducts. Start tiling. Tiles smaller than 50 mm x 50 mm should not be used over hydronic system installation surfaces.
For hot-water systems, ducts can be cut into the building board and other wedi elements quickly and easily.
The building board serves as a combined form of heat insulation and a base for installation of tile and serves as waterproofing protection if needed.