Installation Guide

Step 3

For inside and outside corners, adhere pre-formed WP Inside and Outside Corners. For oor/wall

connections, use Seam Tape. Install Pipe Collars at showerhead, body sprays, etc. and Mixing Valve

Collar at the mixing valve. As an alternative to the Pipe Collars and Mixing Valve Collars, other

suitable sealants can be used to seal pipe protrusions and protect moisture sensitive solid backing

panels at the mixing valve.

Step 4

Once the entire membrane—with seams, corners, and connections—has been completely bonded,

and therefore waterproofed, the tile/stone may be applied.

Note: Water testing of the assembly

Prior to setting tile, wait 24 hours to allow for nal set of the mortar before testing to ensure

waterproof performance of the assembly at seams and connections.

Step 2

Seams can be constructed by overlapping the edges of the WP 2” (5 cm) using unmodied or

modied thin-set mortar, or by abutting the edges and covering the joint with Seam Tape using an

unmodied or modied thin-set mortar.

Step 1

Apply thin-set mortar to the substrate using a 1/4” x 3/16” (6 x 5 mm) V-notch trowel. Press the WP

fully into the bond coat. Work the WP into the mortar by applying pressure to the membrane with the

at side of the trowel (held at an angle) in smooth, diagonal sweeps. ALL air bubbles must be

removed.

tech@duralusa.us800-278-1956

Waterproong Membrane Installation Guide

with VaporShield Technology™

Suboor Prep

The substrate must be clean, even, and load bearing. The thin-set mortar used for bonding the WP

must be appropriate for the substrate, and it must penetrate and engage the WP eece. We

recommend using a modied thin-set mortar to install the WP to the vertical substrate. Cut the WP to

size prior to application.

Step 5

For tile installations using the thin-bed method, apply unmodied or modied thin-set mortar directly

to the exposed WP surface and install the tiles, ensuring full coverage. For acid-resistant coverings,

use an epoxy adhesive to set and grout the tile.

PAGE 1
Waterproofing Membrane Installation Guide with VaporShield Technology™ Subfloor Prep The substrate must be clean, even, and load bearing. The thin-set mortar used for bonding the WP must be appropriate for the substrate, and it must penetrate and engage the WP fleece. We recommend using a modified thin-set mortar to install the WP to the vertical substrate. Cut the WP to size prior to application. Step 1 Apply thin-set mortar to the substrate using a 1/4” x 3/16” (6 x 5 mm) V-notch trowel.