ARDEX TLT-711 Waterproofing Accessories Installation Guide
- June 13, 2024
- ARDEX
Table of Contents
ARDEX TLT-711 Waterproofing Accessories
SUBFLOOR PREP
The substrate must be clean, even, and load bearing. The ARDEX thin-set mortar used for bonding the ARDEX TLTTM Waterproofing Membrane must be appropriate for the substrate and it must penetrate and engage the membrane’s fleece. We recommend using an ARDEX modified thin-set mortar to install the membrane to a vertical substrate. Cut the membrane to size prior to application.
INSTALLATION INSTRUCTIONS
STEP 1
Apply the appropriate ARDEX thin-set mortar to the substrate using a 1/4” x 3/16” (6 x 5 mm) V-notch trowel. Press the ARDEX TLTTM Waterproofing Membrane fully into the bond coat. Work the membrane into the mortar by applying pressure to the membrane with the flat side of the trowel (held at an angle) in smooth, diagonal sweeps. All air bubbles must be removed.
STEP 2
Seams can be constructed by overlapping the edges of the ARDEX TLTTM Waterproofing Membrane 2” (5 cm) using an ARDEX modified thin-set mortar, or by abutting the edges and covering the joint with ARDEX TLTTM Seam Tape using an ARDEX modified thin-set mortar.
STEP 3
For inside and outside corners, adhere pre-formed ARDEX TLTTM Inside and Outside Corners. For floor/wall connections, use waterproof ARDEX TLTTM Seam Tape. Install ARDEX TLTTM Pipe Seals at shower head, body sprays, etc. and ARDEX TLTTM Mixing Valve Seals at the mixing valve. As an alternative to the pipe seals and mixing valve seals, other suitable sealants (i.e. ARDEX CA 20 PTM) 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 final set of the mortar before testing to ensure waterproof performance of the assembly at seams and connections. Note: For tile installations using the thin-bed method, apply an ARDEX modified thin-set mortar directly to the exposed membrane surface and install the tiles, ensuring full coverage. For acid-resistant coverings, use an epoxy adhesive to set and grout the tile.