Healthier Choice FOUNDATION Commercial Carpet Cushion - Manual (Page 4)

mendations for open time so as to allow even distribution and penetration of adhesive on all
areas of carpet backing.
NOTE: Proper open time considerations are critical for a successful installation. Installing carpet into the adhesive without
sufficient open time may result in installation failure. The use of fans will reduce required open time and promote tackiness.
However, be aware that excessive air movement will accelerate the drying time and may prevent sufficient transfer of adhesive to
the backing of the carpet.
• Using a roller, roll in both directions to promote complete adhesion of carpet to cushion. Rolling
must be performed with the lightest roller that achieves proper transfer of the adhesive into
the carpet back. Refer to carpet manufacturer recommendation for roller weight. Roll the carpet
in both directions. Carefully squeegee any bubbles to edges or seams prior to full adhesive
set up time. Woven carpet must be rolled a second time 3 to 12 hours after initial rolling to
make sure a strong bond is established. Double-glue installation of unitary products is not
recommended due to the potential of installation failure. Prevent all traffic over carpeted area for a
minimum of 24 to 48 hours after installation. Failure to do so may create areas of inadequate
adhesion between carpet and cushion and may lead to future problems.
Other Installation Considerations
• Cleaning: Exposure to water from cleaning and other sources should be restricted for a minimum
of 30 days. Dry cleaning systems are preferred.
• Adhesives: Certain types of carpet backing and adhesives are not compatible. Follow
manufacturer recommendations as to the correct adhesive and application. Verification of trowel
settings, open time and additional questions should be referred to your adhesive manufacturer.
• Seaming: Depending on carpet manufacturer recommendations, seams may be hand sewn,
butt-seamed and glued, or hot melt taped using a low profile, non-silicone treated hot-melt
tape appropriate for double-glue installations. The method used to seal seams on a direct-
glue installation is also an acceptable method when the correct seam sealer is used. Seam
adhesive should be applied in a manner that encapsulates both primary and secondary backings.
Double-Glue Procedures for Stairs:
• Pre-cut and dry-fit the carpet before commencing the stair installation. Position tack strip
on the tread and riser and install as with a conventional installation. Install cushion
extending completely over the bullnose (typical radius: ¾-inches). After the cushion is
adhered, apply the double-glue adhesive on top of the cushion. Install carpet into the wet
adhesive, which will become pliable and easier to stretch.
Installing Patterned Carpet:
NOTE: Pattern adjustment during installation is possible and should be anticipated.
• If tolerances exceed manufacturers published specifications for trueness of edge, bow, skew
and pattern elongation, contact manufacturer before proceeding.
• Lay the carpet in the designated area. When preparing to construct the seam, begin by
matching the patterns in the center of the seam. Work from the seam’s midpoint to the seam
ends. Bring the pattern into register using appropriate tools that might include:
· Power stretcher
· Knee kicker
· Dead man
· Dry lines
· Stay nails
· Mini-stretcher with seam repair attachment (“crab stretcher”)
Double Glue Installation Guidelines Page 4
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