Install Instructions

IM-PR 566442 1114 (Design Manual)
198
D.3.4 Getting around obstacles
The Climate Mat layout supplied by Viega will seek
to avoid large obstacles as much as possible. How-
ever, slab penetrations due to structural, electric or
plumbing components are almost inevitable. Where
necessary, remove the tubing from the spacer strip
to spread the tubing around obstacles. If this does
not lend sufficient clearance, spacer strip(s) may be
cut or removed to give you more flexibility.
Figure D-10 Fastening to foam insulation: Use at
least two foam staples to anchor each spacer strip.
Staple tubing close to each spacer strip.
Figure D-11 Re-routed tubing
D.3.5 Sleeving expansion joints and slab
penetrations
Tubing must be sleeved at all concrete expansion
joints and slab penetrations. For the penetration of
leaders at manifold locations, slide each leader’s
factory-installed sleeve until it is in position. For
expansion joints and slab penetrations, see Section
4.1.2, Handling and protecting tubing.
Figure D-12 Sleeves around tubing penetrations
near manifold
D.3.6 Pouring the concrete
Prior to the concrete pour, pressurize each Climate
Mat to 100 psi of air through the Schrader valve
on the temporary header. Keep the Climate Mats
under pressure for the duration of the concrete
pour. Check with local code to determine if there
are pressurization requirements that exceed this
recommendation, and if so, ensure that local code
is followed. In absence of local code pressurize
the system for a minimum of one hour. Frequently
confirm throughout the pour that tubing integrity is
maintained.
Inform the concrete crews and truck operators that
dump chutes must never come into contact with
the tubing, which could otherwise be damaged.
As much as possible, avoid the application of
high-pressure, pumped concrete directly to the
spacer strips, which could become dislodged if the
pressure is too high.