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Installation & Owner’s Guide 15
4. Inspection/Testing Continued
Tile, Stone, and Marble Installation
When installing Peel & Stick Radiant Heat Film under tile, stone, or marble, we highly recommend Tile Counil of
North America (TCNA) guidelines or ANSI specifications for minimum standards of installation. We recommend
latex-modified or epoxy modified mortar and grout, instead of water-based multi-purpose materials.
Use full coverage of thin set with no voids. Spot Bonding (Dot Mounting), and leaving large voids, is unacceptable
and will lead to a crunching noise where the heat mats are installed. Thin set must be installed following TCNA/
ANSI standards. Spot bonding of tile that only gives partial contact leaving large voids is not an acceptable
method for tile installed on floors with thin-set mortars.
Select the proper size PLASTIC trowel for the installation of tile or stone. We recommend a minimum 3/8” x 1/4”
trowel. This trowel works best for most 1/4” tile.
If you need more information on tile installation, contact TCNA at (864) 646-8453 or visit their Web site at www.tileusa.com.
Place Caution Stickers
Apply caution stickers provided with mats in appropriate locations, as shown below.
NOTE:
When installing tile, stone or marble over Peel & Stick Radiant Heat Film, it is important to
maintain a thin-set thickness of 3/8” or less after the tile is embedded, even if the mortar
manufacturer allows for thicker installations. Thicker mortar beds can potentially provide
sufficient moisture to cause some natural stones to warp or crown.
CAUTION:
Flooring materials must be
rated for use with electric floor
warming system.
CAUTION:
Never bang a trowel on the mat
to remove excess mortar from
the trowel. This could damage
the mat.
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