Method and apparatus for seaming wide panels of EPDM membrane to form a composite EPDM roofing membrane
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United States of America Patent
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Sep 9, 2003
Grant Date -
Jan 10, 2002
app pub date -
Nov 20, 1998
filing date -
Nov 20, 1998
priority date (Note) -
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Abstract
A method and apparatus for continuously seaming cured EPDM membrane to form a composite sheet of predetermined width and indefinite length. The method includes the steps of providing at least two rolls of cured EPDM membrane having longitudinal marginal edges and feeding the cured EPDM membrane from the at least two rolls in a first direction. The longitudinal marginal edges of the cured EPDM membranes are positioned in an overlapping relationship as the cured EPDM membranes are fed in the first direction and then the overlapping longitudinal marginal edges are continuously seamed to form a composite sheet of indefinite length.
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