Install Instructions

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IM-PR 566442 1114 (Design Manual)
Appendix F Climate Mat
Climate Mat is a module of pre-configured, scalable
and pre-pressurized circuits of ViegaPEX Barrier
tubing that rolls out easily, allowing installers
to cover large areas of flooring faster and more
efficiently than traditional floor systems. Climate
Mat is provided for commercial applications of
10,000 ft
2
or greater.
D.1 Components
Each Climate Mat is composed of ViegaPEX
Barrier tubing arranged in a serpentine pattern.
Climate Mats generally have up to six circuits, each
with a supply and return that are connected to a
temporary/test header. “Spacer strips,” plastic
cross-braces installed at the factory, are connected
to the tubing at 4-foot intervals with clips to
maintain consistent tubing spacing. Spacer strips
have pre-formed holes that facilitate attachment to
the sub-base with nails, staples or zip ties. Leaders
are the lengths of tubing that connect temporary
headers to the first spacer strip in a mat. Integral
sheaths provide permanent protection for the
leaders where they penetrate the slab. Temporary
headers are shipped with a Schrader valve to
maintain pressurization during the concrete pour.
D.2 Planning the installation
D.2.1 Preparing the site
1. Compact the sub-base where necessary.
2. Install vapor barrier if specified. Viega
recommends installing a vapor barrier on all
heating and cooling installations.
3. Install insulation if specified.
4. Install wire mesh if specified. Though
wire mesh is not required for Climate Mat
installations, it can be helpful for securing
Climate Mat leaders near manifolds.
5. Where specified, re-bar or other slab
enforcement may be installed prior to or after
the installation of Climate Mat, depending on
the slab design and construction schedule,
though it is generally easier to sequence the
installation of slab reinforcement after the
Climate Mat is installed.
6. Remove any unintentional obstructions and
construction waste.
Figure D-1 - Climate Mat