Install Instructions

IM-PR 566442 1114 (Design Manual)
160
Figure B-1f
Section through slab on or below grade installation using foam board staples
Staples for Foam Board:
Fasten tubing every 2 feet and
3 times at each U-turn to hold
down any return bends or other
shapes created.
Tubing Spacing (per design)
R-5 Edge Insulation:
Refer to local code for
insulation requirements.
Compact Subgrade
Gravel
ViegaPEX Tubing:
Keep 4" from wall.
4" Concrete Slab: Minimum ¾" height
of concrete over ViegaPEX tubing
Polyethylene Film: 6 mil (min.)
R-5 Insulation:
Refer to local code for insulation requirements. (Ensure
compression rating is suitable for application.)
Figure B-1g
Section through thin-slab installation using plywood staples
R-19 Insulation:
Refer to local code for insulation
requirements.
1½" Concrete Slab:
Minimum ¾" height of thin-slab over
ViegaPEX tubing
Tubing Spacing
(per design)
Floor Joist
¾" Plywood Subfloor:
The thickness of the plywood subfloor should always
be installed in accordance with the local building code.
ViegaPEX Tubing:
Keep 4" from wall.
Plywood Staple:
Fasten tubing every 2 feet and 3 times
at each U-turn to hold down any return
bends or other shapes created.
Sealant for Gypsum or
Polyethylene Film: 6
mil (min.) for concrete