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Performance of Tape-Bonded Seams of EPDM Membranes: Factors Affecting the Creep-Rupture Response of Tape-Bonded and Liquid-Adhesive-Bonded Seams.


pdf icon Performance of Tape-Bonded Seams of EPDM Membranes: Factors Affecting the Creep-Rupture Response of Tape-Bonded and Liquid-Adhesive-Bonded Seams. (4387 K)
Rossiter, W. J., Jr.; Vangel, M. G.; Kraft, K. M.

NIST BSS 177; 54 p. July 1998.

Available from:

National Technical Information Service
Order number: PB98-146038

Keywords:

adhesive tape; adhesive testing; building technology; creep-rupture; EPDM membrane; heat exposure; roofing; seam; strength; time-to-failure

Abstract:

This report presents the results of Phase III research of an industry-government consortium study to develop nonproprietary data on the performance of tape-bonded seams of EPDM (ethylene propylene diene terpolymer)roof membranes. Four Phase III tasks investigated the effects of: (I) elevated test temperatures, (II) elevated temperature exposure prior to loading, (III) exposure to industry-developed protocols (i.e., Rubber Manufacturers Association and SPRI), and (IV) cold temperature preparation on peel creep-rupture response and on peel strength. Task (V) examined shear testing. Two commercial tape systems (i.e., tape and primer) and one liquid adhesive were applied to well-cleaned EPDM rubber in fabricating specimens. For each task, comparisons of the creep-rupture responses and strengths of tape-bonded and liquid-adhesive-bonded samples were made.