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Predicting Maximum Field Service Temperatures From Solar Reflectance Measurements of Vinyl

From Atlas Material Testing Technology LLC
 

 
A number of vinyl building product manufacturers are familiar with The Standard Test Method for Predicting Heat Buildup in PVC Building Products according to ASTM D 4803 which utilizes an insulated box to house a specimen irradiated by an IR heat lamp. Many vinyl producers may not be familiar with the basis of this test or the direct measurements that can be made to predict the propensity for heat buildup. Recent failures of rigid vinyl materials due to heat buildup and heat distortions have been observed even though ASTM D-4803 analysis indicate acceptable performance. These materials have also displayed satisfactory heat buildup performance in historical markets. Sales and subsequent failures of these products in newer Western US markets imply an environmental constraint not found in traditional eastern geography's and a possible limitation to the D-4803 method. Failures that initiated this study have been focused around areas with higher solar irradiance in the Southwestern US.
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Topics of Interest
A number of vinyl building product manufacturers are familiar with The Standard Test Method for Predicting Heat Buildup in PVC Building Products according to ASTM D 4803 which utilizes an insulated... (Read More)
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