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ASTM Selected Technical Papers
Roofing Research and Standards Development: 2nd Volume
By
TJ Wallace
TJ Wallace
1
Naval Facilities Enginnering Command
?
Philadelphia, PA 19112 Symposium Co-Chairman and Editor
.
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WJ Rossiter, Jr Jr
WJ Rossiter, Jr Jr
2
National Institute of Standards and Technology
,
Gaithersburg, MD 20899 Symposium Co-Chairman and Editor
.
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ISBN-10:
0-8031-1393-5
ISBN:
978-0-8031-1393-0
No. of Pages:
234
Publisher:
ASTM International
Publication date:
1990

A laboratory study was undertaken to determine the load-strain properties and watertight/strain levels of aged polyester reinforced built-up roof membranes. Tests were run at 0°F on field samples of roof membranes ranging in age from three to five years. One sample of a glass and polyester reinforced membrane was also evaluated. Strain energy values were determined for all specimens tested. A three point watertight integrity test was devised, using a prestressing level of first yield, average ultimate strain, and end point strain.

1.
Dupuis
,
R. M.
and
Lee
,
J. W.
, “
Coefficient of Expansion Values for Modified Bitumen Roof Membranes
,” Roofing Research and Standards Development, ASTM STP 959,
Critchell
R. A.
, Ed.,
American Society for Testing and Materials
,
Philadelphia
,
1987
, pp. 92–99.
2.
Lee
,
J. W.
and
Dupuis
,
R. M.
, “
A Performance Evaluation of Modified Bitumen Roof Membranes Using the Strain Energy Approach
,” Research Report sponsored by
The Lutravil Company
, Durham, NC, January, 1987.
3.
Rossiter
,
W. J.
and
Bentz
,
D. P.
, “
Strain Energy of Bituminous Built-Up Membranes: A New Concept in Load-Elongation Testing
,” Applied Technology for Improving Roof Performance - 8th Conference of Roofing Technology, Sponsored by National Bureau of Standards and Published by
National Roofing Contractors Association
,
Gaithersburg, MD
,
1987
.
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