Installation Instructions
Drain Details: Triple Flex™ membrane must extend to the bottom drain flange,
with sufficient coverage to channel all water flow to and down the drain. DO NOT
cover weep holes with membrane. The following diagram depicts a typical drain
configuration:
Tile
TEC
®
Portland
cement grout
Drain top
assembly
Clamping ring
with weepholes
TEC
®
Waterproofing Mesh embedded
into TEC
®
Triple Flex™
TEC
®
Triple Flex™
TEC
®
latex modified
thin set mortar
Cement—sloped
1/ 4" per foot toward drain
Note: This diagram is provided to show a typical drain detail and is not intended
to make specific design recommendations.
Install a continuous 45 mil thick membrane to cover the substrate and up to the
drain opening, making sure to embed TEC
®
Waterproofing Mesh (Part C) around
the drain opening, as shown in the diagram. Once the membrane has dried
thoroughly, the flange should then clamp down on the membrane, with the weep
holes unobstructed. (See TCA Installation Methods B414 through B418).
Joint Details: Control/expansion joints are designed to experience movement in
the structure, and must be carried through subsequent surface finishing materials.
In an installation that requires waterproofing, these joints must be sealed, but not
bridged by the subsequent tile installation. Ensure proper installation by complying
with the following instructions.
Interior Control Joints [typically
1
⁄
4
" (6 mm) or smaller]— First and
foremost, make sure the joint is absolutely clean and free from debris. Next, fill
the joint with Triple Flex™ membrane compound and spread to 4" (100 mm)
on either side, embedding the waterproofing mesh over the joint. Install the
membrane over the entire surface, ensuring a continuous 45-50 mil [
3
⁄
64
"
(1.14-1.27 mm)] film as outlined in the Membrane Application section. Place
bond breaker tape over the joint and install tile work without bridging the joint.
After tile has been installed, caulk the joint with specified sealant.
Exterior Expansion Joints— First and foremost, make sure the joint is
absolutely clean and free from debris. Install open or closed cell backer rod into
the joint. (See TCA Installation Method EJ171). Next, compress the specified
sealant into the joint according to manufacturer’s directions, leaving it flush with
the surrounding surface. After the sealant has cured, cover the joint with bond
breaker tape. Apply Triple Flex™ membrane as directed, making sure to embed
the flashing mat centered over the joint, with a 3" (76 mm) overlap on either side.
Place bond breaker tape over the joint and install tile work without bridging the
joint. After tile has been installed, caulk the joint with specified sealant.
Water Tests
Allow Triple Flex™ waterproof membrane to cure for 72 hours prior to test. Plug
all drains and dam the floor area to be tested. Flood the area to a meaningful test
level, and place a mark at initial water level. Check the area carefully, looking for
any signs of leakage (air bubbles rising from leak source). Pay thorough attention
to sensitive areas, such as drains, mesh areas and joint details. After 24 hours,
check water level against mark(s) made at initial height. If significant loss has
occurred, further investigation will be necessary to identify leaks.
Clean-up
Clean tools, hands and excess material, while still fresh, with warm, soapy water.
Material that is cured is difficult or impossible to remove.
Curing
Over most substrates, Triple Flex™ membrane is ready for tile application in
4-8 hours (16-20 hours for non-porous substrates such as existing ceramic tile,
VCT or non-cushioned sheetgoods). A good visual check for cure is when the
membrane changes to a dark gray color (when cured) as opposed to a light gray
when fresh. In all cases, care should always be taken to not gouge or otherwise
disturb or damage the integrity of the cured membrane. Install tile using a suitable
TEC
®
brand latex-modified thin set mortar or TEC
®
AccuColor EFX
®
Epoxy Grout
and Mortar (epoxy for interior only).
Cure times based on 70˚F (21°C) and 50% RH. Colder temperatures, higher
humidity and non-porous substrates will extend cure times.
INSTALLATION INSTRUCTIONS AS CRACK ISOLATION MEMBRANE
Follow instructions under Membrane Application in the section above to achieve
a continuous 45-50 mil [
3
⁄
64
" (1.14-1.27 mm)] crack isolation membrane. Allow
membrane to cure and install tile using a suitable TEC
®
brand latex-modified thin
set mortar or TEC
®
AccuColor EFX
®
Epoxy Grout and Mortar (epoxy for interior
only).
Note: Mesh is not required for crack isolation applications.
INSTALLATION INSTRUCTIONS AS FLEXIBLE BONDING MORTAR
(WITH CRACK ISOLATION CAPABILITIES)
For tile up to 12" x 12" (300 mm x 300 mm) spread Triple Flex™ mortar
using flat side of trowel to promote better substrate contact. Then, using the
recommended notched trowel, comb the mortar uniformly in a ridged pattern.
Spread only an area that can be tiled in 20 minutes (or while surface is still tacky).
Average pot life is 2 to 4 hours. Immediately wipe mortar from the tile surfaces, as
once cured it is extremely difficult to remove. Tile will be ready for grouting in
16 to 20 hours.
Note: To install 1) tile larger than 12" x 12" (300 mm X 300 mm) or 2) white
and light-colored marble tile, use Triple Flex™ as a crack isolation
membrane. See the INSTALLATION INSTRUCTIONS—CRACK ISOLATION
MEMBRANE section.
6. AVAILABILITY
TEC
®
Premium Tile and Stone Installation Products are available nationwide.
To locate TEC
®
products in your area, please contact:
Phone: 800-832-9002
Website: tecspecialty.com
7. WARRANTY
For warranty details, see your sales associate or tecspecialty.com.
8. MAINTENANCE
Not applicable
9. TECHNICAL SERVICES
Technical assistance
Information is available by calling the Technical Support Hotline.
Toll Free: 800-832-9023
Fax: 630-952-1235
Technical and safety literature
To acquire technical and safety literature, please
visit our website at tecspecialty.com.
10. FILING SYSTEM
Division 9
TEC
®
Triple Flex™ Waterproofing, Crack Isolation Membrane and Flexible Mortar Product Data
tecspecialty.com
H.B. Fuller Construction Products Inc.
1105 South Frontenac Street
Aurora, IL 60504-6451
©Copyright 2014 H.B. Fuller Construction Products Inc.
TEC
®
, Triple Flex™, and AccuColor EFX
®
are trademarks of
H.B. Fuller Construction Products Inc. DS324 R0214-1