PRODUCTS:
FLOOR UNDERLAYMENT
Floor Tiles
• Floating Floors
• Underlayment
• Sheets
• Rolls
• Expansion Joints
Insulation Corkboard
• Cork Stoppers
• Gift / Utility Items
Cork
Underlayment Installation Instructions
Download this Page as a .PDF
Guidelines
|| Installation || WECU
Characeristics || WECU 3 Part Spec.
|| Sound
Ratings || Warranty
MATERIALS
CERAMIC TILE: Larger than 4" x 4" tile
THIN SET (sanded): to meet ANSI A 118.4 for latex Portland
Cement. All ceramic tile installation must conform to ANSI A108
WECU: WECU Crackless for stress crack suppression only, WECU
Soundless for sound control for concrete structure with suspended
ceiling: WECU Soundless+ for optimum sound control for concrete
and wood joist structure with or without suspended ceiling.
MASTIC: for above grade indoor Installation use a ceramic
tile mastic which conforms to ANSI A.136.1 TYPE 1 or a good quality
indoor/outdoor carpet adhesive.
APPLICATION
 1.
Subfloor must be structurally sound, level and clean.
2.
Spread out mastic on subfloor with flat side of a 3/16- v-notched
trowel to achieve good bond. Then, Use the notched side for a good
bond to WECU.
3. Install WECU butting seams and up to walls snugly.
 4.
Roll over WECU with 75-100 Ibs roller starting in the center and
rolling to the outer edge to eliminate air bubbles.
5. Cover seams using 1" masking tape. Once WECU is securely
adhered to the subfloor proceed with the installation of selected
flooring product.
 CERAMIC
TILE: Set with sanded thin set mixed with minimum acrylic latex
solids of 20% to insure strong bond. Be certain to follow manufacturers
recommended curing time before using floor.
MARBLE: Install using a medium bed mortar mixed with acrylic
latex or use the mud set method.
HARDWOOD FLOORS: Choose floor manufacturer's recommended
adhesive for application on WECU. Do not use nails or screws.
6. For Sound Control: Leave a 1/4" gap between perimeter wall
and flooring. Insert WECU expansion-joints or fill with acoustical
sealant to prevent sound from being transmitted through the walls.
ADDITIONAL INSTRUCTIONS FOR HARDWOOD
1. For a glue-down floor, the WECU needs to be glued to the subfloor, with
the wood flooring glued to the WECU. Choose floor manufacturer's
recommended adhesive for application on WECU.
2. For a floating-floor system, the WECU can be loose laid over the
subfloor, and the wood flooring floated above that.
3. For a nail-down floor, the WECU is loose laid over the subfloor. A
double layer of 3/8" plywood, glued and screwed together at right angles is
then laid over the WECU, and the wood floor is nailed into the plywood. To
preserve the integrity of the sound rated floor system, never mechanically
fasten the WECU with nails, screws or staples, since this will severely
diminish the acoustical performance of the system.
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