Call number:
ZSP-201-76/38
In:
CRREL Report, 76-38
Description / Table of Contents:
Current methods for evaluation of the moisture absorption of plastic insulations (ASTM-C-272-53 and ASTM-C-355-64) due to vapor pressure gradients or immersion rely on short time periods to predict long term performance. This procedure may not provide accurate information on performance since in practice insulations may absorb more moisture than these tests indicate. A series of tests were conducted on extruded polystyrene roof insulation that had been in place, exposed to environmental moisture and pressure gradients, for a maximum of 36 months. Results indicate that moisture absorption of 1.5% by volume can be expected in the field.
Type of Medium:
Series available for loan
Pages:
iv, 21 Seiten
,
Illustrationen
Series Statement:
CRREL Report 76-38
URL:
https://hdl.handle.net/11681/9529
Language:
English
Note:
CONTENTS
Abstract
Preface
Conversion factors: U.S. customary to metric (SI) units of measurement
Introduction
Principal features of a protected membrane roof system
Reported advantages of a protected membrane roof system
Study sites
Stevens Hall, University of Alaska, Fairbanks
Building 41 5, University of Alaska, Fairbanks
Building 1053, Ft. Wainwright, Alaska
Gruening Building, University of Alaska, Fairbanks
Consortium Library and K Building, University of Alaska, Anchorage
CRREL Laboratory, Hanover, New Hampshire
Resources Building, University of Alaska, Fairbanks
Insulation properties
Sampling
Results
Bulksamples
Sliced samples
Conclusions and recommendations
Literature cited
Appendix A. Moisture contents
Appendix B. Photographs
Location:
AWI Archive
Branch Library:
AWI Library
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