Install Instructions
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or the asphalt to completely cool. Therefore, if using ProMelt Cable, you may want to lay it out and tie it to rewire that
can be quickly lifted into place after the first is laid. This might also be preferable for a mat installation, although if mats
are precut and shaped to the area, they generally can be rolled into place fairly quickly.
If a slab sensor is installed in this second layer, plan ahead so this does not cause the first layer to cure or cool too much.
Inspect the area and remove any sharp objects.
Install in temperatures at least 40°F (4.5°C).
STEP 3.2
Begin by test-fitting the mat or cable in the area to be heated. For mat, unroll it completely. Turn and flip it by cutting the
tape where needed. Make sure it fits the area properly. For cable, make sure it fits the area with no excess cable.
IMPORTANT: This heating cable CANNOT be cut shorter to fit! Do not overlap or cross over heating cable on itself. Do
not space heating cable closer than 2 inches.
Mat/cable cannot be laid closer than 6 inches from the edges of slabs. In asphalt, this is increased to 12 inches
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from the edge where no curb is provided.
Avoid crossing expansion joints in a slab, unless proper technique and protection steps are followed (see Step 4.14
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on page 16).
Avoid placing the heating cable any closer than 2 inches from other items such as underground cable or piping to
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keep from overheating them.
Allow at least 2 inches, but not more than 4 inches, between adjacent mats or sections of a mat where the mat
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tape is cut and turned to fill the area.
WARNING: The heating cable and factory splices of ProMelt Mat and/or Cable must be completely embedded
in the concrete, sand, or asphalt. Never try to use up excess heating cable in surrounding soil, walls, or other
unprotected applications.
Do not repeatedly bend the heating cable, and never bend factory splices.
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STEP 3.3
Place the power leads of the mat/cable next to the conduit entry. The electrician will pull this through the conduit
later. Make sure it is positioned so that the no part of the splice connection or the heating cable will be pulled into the
conduit.
STEP 3.4
Concrete Application
ProMelt Mat: Begin laying out and securing the mat about every 2 feet to the reinforcement mesh or rebar using plastic
cable ties around the heating cable. Turn the cable tie ends downward, or trim them so they will not poke up through the
surface layers. Do not use metal ties as they may damage the cable.
If installing on top of existing slab, secure the mat by nailing through the tape every 2 feet or so. NEVER strike the heating
cable with a hammer.
ProMelt Cable: Begin securing the heating cable at the desired spacing to the reinforcement mesh or rebar using plastic
cable ties. These cable ties should be applied at the ends of each run and at every 3 to 4 feet. Turn the cable tie ends
downward, or trim them so they will not poke up through the surface layers. Do not use metal ties as they may damage
the cable.
If installing on top of existing slab, secure CableStrap to the surface. Use nails or similar, every 6 to 10 inches. CableStrap
should be placed at either end of the heated area, and additional straps should be applied every 3 to 4 feet in between to
hold the cable in place during surfacing.
STEP 3.5
Asphalt Application
ProMelt Mat: Begin laying and securing the mat to the first course, using nails, staples or similar into the mat tape every
2 feet or so. Make sure it is laid flat. Do not use metallic nails or staples directly over the heating cable. Be careful not to
damage the heating cable.
ProMelt Cable: Secure CableStrap to the surface. Use nails or similar, every 6 to 10 inches. CableStrap should be placed