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Property of Royalty Roofing & Remodeling |
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| WeatherLockŪ G Granulated
Water-resistant Underlayment provides superior roof deck
protection for your home. It helps prevent damage caused by
freeze/thaw cycling, wind-driven rains, and normal water flow
that occurs around valleys, vents, chimneys and skylights.
It's an essential part of a complete roofing system. |
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Area: 1 sq. roll - 100 sq. ft.
Area: 2 sq. roll - 200 sq. ft.
Thickness: 55 mils
Length: 1 sq. roll - 33.3 ft.
Length: 2 sq. roll - 66.7 ft.
Width: 3 ft.
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ICBO ES ER 4991
UBC 15B-1
UBC 15B-2
UBC 15D-1
UBC 15D-2
UL 790, Class A
UL 790, Class C
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Physical Properties
| Property |
Test Method |
Typical Values* |
| Thickness |
-------- |
55 mils |
| Slip Resistance |
Asphalt Saturated Felt |
Passed |
| Pliability |
1" Mandrel Bend at -20°F |
Passed |
Tensile Strength
Longitudinal (md)
Transverse (cd) |
ASTM D 412 |
48 lbs/in
35 lbs/in |
Elongation at Break
(modified bitumen portion) |
ASTM D 2523 |
250% |
| Permeance |
ASTM E 96 |
.05 max |
| Adhesion to Plywood, 40°F |
ASTM D 903 |
1.0 lbs/in |
| Adhesion to Plywood, 75°F |
ASTM D 903 |
6.0 lbs/in |
Tear Resistance
Longitudinal
Transverse |
ASTM D 4073 |
20 lbs
20 lbs |
| Sealability around Nail |
ASTM D 1970 |
Passed |
| Low Temperature Flexibility |
ASTM D 1970 |
Passed |
Waterproofing Integrity after
Low Temperature Flex |
ASTM D 1970 |
Passed |
| Waterproofing Integrity of Lap |
ASTM D 1970 |
Passed |
*All values are approximate
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