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Assessment of plastic sheets for waterproofing roofs

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Abstract
This paper discusses the utilization of a variety of plastic and elastomeric sheets as membranes for waterproofing roofs. The sheets have been assessed in terms of mechanical properties in tension and the ability to retain these properties after having been exposed outdoors. Peel strengths have been determined to indicate the ability of the sheet to be lap-sealed, and some sheets have been fixed to a moving joint tester to assess the capability of the system to accommodate movement in the substrate. The results indicate that a number of systems offer promise of improved mechanical performance and durability compared to the conventional bituminous roofing membranes. However, the lap sealing of some systems is inferior and care in selection is required to ensure that the end use application makes full potential of the good features of the particular membrane being considered.
Date
9/1974
Author(s)
K Martin
Page(s)
Paper 10
Keyword(s)
plastic sheet; waterproofing; elastomeric sheet; peel strength;


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