Install Instructions

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IM-PR 566442 1114 (Design Manual)
D.3.2 Repairing tubing
If tubing is kinked or punctured, it can be easily
and effectively repaired on-site. Tubing punctures
must be repaired using ViegaPEX press couplings.
To comply with the Viega Climate Mat warranty,
in-slab couplings must be wrapped with repair
coupling wrap to protect the fittings from exposure
to concrete. A small tubing puncture may be
repaired with only one coupling, if there is sufficient
slack in the undamaged tubing that can be pulled
from the nearest U-bend. Otherwise, the repair will
require two couplings and a length of ViegaPEX
Barrier tubing of the same outer diameter as the
Climate Mat. See Appendix B for instructions on
in-slab repairs.
D.3.3 Fastening the Climate Mat
Determine the distance from the control line
indicated on the design layout to the first spacer
strip location. Secure the first spacer strip to the
sub-base or wire mesh near the manifold location.
Fully unroll the Climate Mat and pull it hand-tight
to ensure that it is straight and square. Attach the
last spacer strip to the sub-base or wire mesh, and
then go back and anchor each spacer strip with at
least two fasteners. Fastening methods will vary
depending on the sub-base.
Fasten leaders at two-foot intervals between the
first spacer strip and the manifold. If attaching
leaders to wire mesh or rebar, use zip ties. For
other applications, use foam staples or other
appropriate fasteners. When anchoring leaders
back to the manifold location, maintain uniform
spacing of the tubing as much as possible.
Tie off the temporary header so that it is not in the
way when the slab is poured.
Figure D-7 Fastening to a compacted sub-base:
Use at least two 6" landscaping nails to anchor
each spacer strip.
Figure D-8 Fastening to rebar or wire mesh: Climate
Mat can also be secured to wire mesh or rebar with
zip ties.
Figure D-9 Fastening to an existing slab: Climate
Mat may be nailed or screwed to a sub-slab for a
thin-slab application.