Install Instructions

Professional Plumbing Installation Guide
35
Tubing Supports: General
Guidelines
• Uponor recommends using plastic or
metal tubing supports designed for use
with plastic tubing.
• Do not use supports that will damage
the tubing. Inspect metal supports for
sharp edges.
• Allow for the linear expansion rate
of Uponor AquaPEX tubing —
approximately 1.1" (27.9mm) per 10°F
(5.6°C) temperature change for every
100’ of tubing.
o When installing tubing runs, thermal
expansion calls for an extra
1
⁄8" to
3
⁄16" of longitudinal clearance per
foot of run. Do not allow tubing to
dip excessively between supports.
Do not pull tubing tight during
installation.
o Do not rigidly anchor Uponor
AquaPEX tubing with supports to
allow tubing to expand and contract.
• Allow adequate clearance between
PEX tubing and the structure (bored
holes or sleeves) to allow tubing to
move freely due to thermal expansion
and contraction.
Tubing Supports: Horizontal
Runs
• Along horizontal runs, install supports
every 32". If horizontal runs are
continuously supported (truss-to-
truss), install a tube talon every
second or third truss. Follow local
code requirements when installing PEX
tubing in fire-resistive construction
floors, ceilings, or walls.
Tubing Supports: Vertical
Runs
• Along vertical runs, install supports
at the base of each floor and mid-
story guide.
Figure 5-3: Tube Talons for
Horizontal Runs
Figure 5-4: Tube Talon Supports
for Vertical Runs
Tubing
Supports