Areas of Application

Tub walls and tub enclosures

Tub wall surround application

wedi building boards are the natural choice for use with tub walls and tub enclosures. The boards can be installed directly to framing or over gypsum, cement or wood underlayment products to create a waterproof underlayment for tile. They can be easily scored and shaped to provide radius surfaces on tub skirts and do not scratch tubs or fixtures during installation. Additionally, the dimensions of the wedi building boards make for quick installations with standard tubs – laid horizontally the board will span the full five foot width. Cut out a notch at the bottom edge of a wedi building board and safely connect to a tub flange with just a bead of wedi 610 Adhesive Sealant in between to safely waterproof this critical connection and create plumb walls, square wall corner areas as well as a full backing for the tile all the way down to the tub's horizontal perimeter area.

Step 1

Measure and cut wedi building board to fit the 450 mm apart framework (wood or metal). Notch out all boards if installed around the perimeter of a flange tub to integrate the flange and achieve a plumb wall with square and tight corners.

Step 2

Attach a notched board to the framework with a 10 mm' bead of wedi 610 Adhesive Sealant between the notch and flange. Attach the board to the framework using wedi Washers and Screws at a rate of 1 every 300 mm along the studs. Leave a gap of 4 mm between tub edge and wedi board bottom end to allow for movement of the tub. Alternatively apply a bead of wedi 610 Adhesive Sealant in between both materials.

Step 3

Apply a continuous 10 mm bead of wedi 610 Adhesive Sealant on the top blue foam edge of the wedi building board before installing the next board, butting tightly into the sealant. Set another wedi Washer and Screw into the seam to create a flush transition between boards and smooth over excess sealant. When installing a wedi side board against the already fixed wedi back wall, ...

Step 4

... apply a continuous 10 mm bead of wedi 610 Adhesive Sealant vertically on the back wall wedi board where both boards will meet. Apply compression to the wedi 610 Adhesive Sealant when moving the wedi side board into position before fastening it. Finally and after all wedi building boards are installed a second 10 mm bead of wedi 610 Adhesive Sealant is applied over all seams and fastener points and spread flat using a putty knife.