Special Precautions - DIY D12 Manual De Instalación

Type of Construction
Mortar Applications:
Thin-set and thick-set (self-leveling) mortar applications are illustrated to the right.
a. If a backer board or plywood sheeting is used to strengthen the floor, or if the mat will
be placed directly onto the slab, install Mat in the thin-set mortar bond coat above these
materials.
b. If a thicker mortar bed, or self-leveling concrete, is used to strengthen the floor, Mat can
be installed in either the mortar bed (dry-set) or in the mortar bond coat directly below
the tile or stone.
Mat is generally installed above the self-leveling mortar in a thin-set bond coat. Use plastic
lath instead of the typical metal lath when installing in a self-leveling layer.
Self-leveling Mortar Applications:
These are appropriate applications if installing engineered wood, vinyl, laminate, or carpet floor
coverings. Attach the Mat to the subfloor or slab, then pour self-leveling mortar 1/4" to 1/2" thick
according to manufacturer's specifications. Install floor covering after the mortar has cured.

Special Precautions

Isolation Membrane: Install the Mat above the membrane, whenever possible, unless
recommended otherwise by the membrane manufacturer.
Insulation: Insulation dramatically enhances the performance and efficiency of floor-warming
systems. Do not install rigid insulation directly above or below backer board or mortar.
Mosaic Tile: When installing mosaic tile, it is recommended to apply a two-step process.
First, embed the Mat in a thin self-level mortar bed (1/4"–3/8"), then thin-set the mosaic tile
according to typical practice.
Expansion Joints: Do not install heating mats through an expansion joint. Install mats right
up to the joint, if necessary, but not through the joint.
Never bang a trowel on the Heating Wire to remove excess mortar from the trowel. This
could damage the heating wire.
DOUBLE-PLyWOOD OVER FRAME FLOOR
Tile/stone or
laminate flooring
Latex-Portland cement
mortar bond coat
Main Plywood Subfloor
(per International Residential
Code, Chapter 11)
Mat
Plywood
Insulation
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