- Author
-
Rossiter, W. J., Jr.
|
Martin, J. W.
|
Embree, E.
|
Seiler, J. F., Jr.
|
Byrd, W. E.
|
Ream, E.
- Title
- Effect of Ozone on the Creep-Rupture of Butyl-Adhered EPDM Seam Specimens.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
Neidig Roofing Co., York, PA
- Book or Conf
- National Roofing Contractors Association. Problems: Issues and Answers. 10th Conference on Roofing Technology, Proceedings. April 22-23, 1993,
National Roofing Contractors Assoc., Rosemont, IL,
Gaithersburg, MD,
85-92 p.,
1993
- Keywords
-
ozone
|
creep-rupture
|
EPDM
|
seams
|
roofs
|
adhesive performance
|
building technology
|
low-sloped roofing
|
single-ply roofing
|
time-to-failure
- Abstract
- EPDM roofing seam specimens, prepared using a commercially available butyl-based adhesive, were subjected to a creep-rupture experiment in peel in the presence of ozone. The times-to-failure of 12 replicate specimens were recorded at five ozone concentrations: ambient (about 0.01-0.03), 0.14, 0.26, 0.50, and 1.0 parts per million. The results of the study indicated that an increase in the ozone concentration significantly reduces the times-to failure over those observed at ambient levels. The shorter times-to-failure at elevated ozone levels were attributed to ozonolysis of the adhesive. The results emphasize the need to minimize incorporating peel stresses into seams of EPDM roofing membranes.