Install Instructions

IM-PR 566442 1114 (Design Manual)
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Heavy equipment must not be operated on top of the tubing, so consider this when determining how
many Climate Mats to roll out at any one time. For example, if the concrete installation will require heavy
equipment to be driven on the sub-base, the Climate Mats will need to be rolled out in stages. In this case,
the number of Climate Mats that can be installed at any one time will depend on the length of the chute on
the concrete trucks, which is generally less than 20 feet. Leave at least one foot of clearance between the
concrete pour and the edge of the Climate Mat to ensure that you can easily roll out subsequent sections
without interference from concrete over-pour. Once the heavy concrete pour and screed equipment has
moved a sufficient distance, subsequent Climate Mats may be unrolled and secured.
If a concrete pump, boom and hose are used to install the concrete, you can generally avoid heavy
equipment on the substrate. In this case, it may be possible to roll and anchor all of the Climate Mats prior
to the pour.
D.2.4 Items needed for installation
Before starting the installation, ensure that the
following tools and materials are on site to help the
process go smoothly:
• Tubing cutters and ViegaPEX Barrier Press
Tool
• ViegaPEX Barrier Press couplings
• Repair tape to wrap repair ViegaPEX Barrier
Press couplings in-slab
• Fasteners for securing clip strips and leaders
to sub-base, wire mesh or re-bar
• Fasteners for securing Climate Mat leaders
near manifolds
• Tools for installing fasteners
• Air compressor for adding extra pressure to
Climate Mats if necessary
D.3 Installing the Climate Mat
D.3.1 Precautions during installation
While it is acceptable to walk on the Climate Mat,
do not operate heavy equipment (including lifts,
vehicles, concrete buggies, wheelbarrows, etc.)
on the tubing prior to installing concrete over the
tubing. Avoid exposure of the tubing to harmful
substances and conditions such as excessive heat,
sharp objects and excessive UV light (i.e., exposure
over 6 months). When bending sections of tubing,
do not bend beyond the maximum bend radius.
(See Appendix A for bend radius of tubing.) Tubing
must be sleeved at all concrete penetrations.
Climate Mat is shipped with slab penetration
sleeves installed on all leaders for this purpose.
When securing tubing, use plastic zip ties, plastic
clips or clamps approved by Viega. Never use
metallic clips or straps to secure tubing.
Figure D-6 Staged pour