Installation Instructions - Shower Pan Liner
Preparation: Prep your surface to ensure that you have a clean smooth surface where the Shower Pan Liner will be placed.
Drain: The drain flange outer circumference should be flush with the rough floor. A clamp ring, bolt down type drain should be used. A weep hole drainage system needs to be set up to allow proper drainage.
Membrane: Before you cut the pan liner material, be sure to measure to allow for all excess needed to cover the floor, and at a minimum, must have a minimum of 6” additional all the way around the shower base. On a clean surface, layout the Shower Pan Liner to measure and cut to the appropriate dimensions. Before installing the Shower Pan Liner, apply a bead of 100% silicone 1/4”- 3/8”, around the upper surface of the base of the drain to seal the underside of the pan liner and the drain base surface. Carefully trim material around the drain, then punch drain bolt holes in the vinyl, using a sharp tool. Do NOT cut - fold the corners. Be sure to install curb guards where required by building codes. Attach the top of the liner with a suitable adhesive.
Seams: If you need to seam 2 or more liners together to cover large areas, you can weld the material together with a vinyl compound cement which will provide a permanent, effective seam. Make sure that the area that you are seaming is clean and free of oil, grease, dirt, or any other contaminants. When you are using the cement, but sure that you are working in a well-ventilated area.
· Utilize a 3” lap seam and at least 6” for a cap seam.
· Use a clean wire brush to roughen the surface where the areas will be chemically seamed
· Apply the cement evenly to the roughed-up area, with the applicator brush, (included with most cement adhesives) in 2-3’ increments, about 1” wider than your seam.
· Close the seam while mating surfaces are soft, wet and tacky. If the vinyl cement dries too quickly add more before closing the seam.
· To eliminate air bubbles, utilize a seam roller, this will also squeeze out any excess cement. Clean/remove the excess cement. · Peel seam back 2-3” into completed increment before beginning next increment to ensure continuous seam. · Brush a little cement along the entire edge of the seam after the final increment to ensure a good seal. Allow to dry (based on your cement’s instructions.)
TEST: You must test the completed install for 24 hours to ensure that there are no leaks. Moisture under the membrane, during or following the test, is a sign of a leak in your seam, an improper fit around the drain flange, or a puncture in the membrane. Repeat this step as needed to make sure you have a water-tight installation.