Install Instructions
IM-PR 566442 1114 (Design Manual)
166
B.3 Creating a material list
The chart below is intended for conceptual purposes in developing an initial material list; there may be
variations in each job. You may use Radiant Wizard to create a final material list.
• Calculate the net
heated area.
• Use charts to make an
initial materials list for the
net area to be heated.
Concrete System Tubing Estimator
ViegaPEX Barrier /
FostaPEX Tubing
Net.
Heated
Area
Multiplier
Estimated
Amount
6" Spacing 2.2
9" Spacing 1.5
12" Spacing 1.1
ViegaPEX Barrier or FostaPEX Tubing ½", ⅝", ¾"
Various Fasteners
Available
• Plastic Clip for Foam
Board
• Wire Mesh Clip
• Zip Ties
• Wire Staples
• Foam Staples
Concrete System Material List Estimator
Fasteners
Net.
Heated
Area
Multiplier
Estimated
Amount
6" Spacing 1.1
9" Spacing .75
12" Spacing .55
Fasten tubing every two feet and three times at
U-turn bend
• Calculate the heated area.
• Use charts to make an
initial materials list for the
net area to be heated.
• Snap Panels are sold in
packages of 18. (stock
code # 15211)
• Snap Panel buttons are
available to attach product
to foam insulation. (stock
code # 15213)
Snap Panel Material List Estimator
Snap Panel
Net.
Heated
Area
Multiplier
Estimated
Amount
Snap Panel .08
6" Spacing 2.2
9" Spacing 1.5
12" Spacing 1.1
½" ViegaPEX Barrier only
• Calculate the net
heated area.
• Use charts to make an
initial materials list for the
net area to be heated.
• Rapid Grid panels are sold
in packages of eight.
(stock code # 15216)
Rapid Grid Material List Estimator
Rapid Grid
Net.
Heated
Area
Multiplier
Estimated
Amount
Rapid Grid .125
6" Spacing 2.2
9" Spacing 1.5
12" Spacing 1.1
⅜", ½", ⅝" ViegaPEX Barrier or ½" FostaPEX
Suspended Slabs and Thin Slab
NOTES: Where multipliers are located in the table, multiply the net heated area by the corresponding
multiplier to derive the estimated amount. For example, if ViegaPEX Barrier is specified at 6" on center
for 1,000 ft
2
of net heated area, the estimated amount of tubing required is 1,000 x 2.2 = 2,200 ft. Tubing
multipliers include 10% overage for leaders.