Installation Instructions
3.2
GRACE ICE AND WATER SHIELD DAMPING MATERIAL
An alternate (lower cost) pipe damping material referred to as "Grace Ice and Water Shield" can
be considered for use with 1010 Clamp-On Gas systems. This opaque material has a black tar
like appearance with a very tenacious adhesive backing. Its lower operating temperature range
and difficult removal from the pipe must be considered before installing this alternate material.
Refer to the web site (www.graceconstruction.com) for a local distributors of this roofing underlayment
material.
The installation and sizing of the Grace material is identical to that of CC129-1A. Refer to Table 2
below for the recommended number in layers for each transducer size. (Operating / Installation
temperature ranges can be found just below Table 2.)
Table 2. Grace Ice and Water Shield Damping Material Thickness for
Transducer
Size
C2H
D1H
D2H
D3H
D4H
Operating Temperature Range
Range -10 to 150ºF (-23 to 65ºC)
1010 Clamp-On Gas Systems
Required
Layers of Grace
1
B1H
1
B2H
1
B3H
1
C1H
1
1
2
1
3
Thickness
(in)
0.038
0.038
0.038
0.038
0.038
0.038
0.076
0.038
0.114
Installation Temperature
32 to 120ºF (0 to 50ºC)
7
CC129A-7
Final Thickness
(mm)
0.97
0.97
0.97
0.97
0.97
0.97
1.93
0.97
2.90
CN4973 February 2005