- Author
-
Gaddy, G. D.
|
Rossiter, W. J., Jr.
|
Eby, R. K.
- Title
- Application of Thermal Analysis to the Characterization of EPDM Roofing Membrane Materials After Exposure in Service.
- Coporate
- Johns Hopkins Univ., Baltimore, MD
National Institute of Standards and Technology, Gaithersburg, MD
Akron Univ., OH
- Book or Conf
- U.S. National Roofing Contractors Association. Symposium on Roofing Technology, 3rd International. April 17-19, 1991,
Montreal, Canada,
502-507 p.,
1991
- Keywords
-
roofs
|
membranes
|
thermal analysis
|
exposure
|
differential scanning calorimetry
|
thermal mechanical analysis
|
thermogravimetry
- Abstract
- This study utilized thermal analysis (TA) methods for the characterization of membrane materials sampled from roofs in service. The TA methods used were thermogravimetry (TG), differential scanning calorimetry (DSC) and thermal mechanical analysis (TMA). Three black (carbon black filled) and eight white (titanium dioxide pigmented) ethylene-propylene-diene terpolymer (EPDM) materials were analyzed after exposures ranging from 12 to 98 months in a variety of climates. The results indicated that in-service materials posessed TA properties similar to those characteristic of new membrane materials.