The spray polyurethane foam (SPF) industry has been active in
the standards development arena, and, within the past couple of
years, two new ASTM International standards have been released that
directly relate to SPF roof systems. Roofing professionals need to
understand which standards currently exist and the new standards'
ASTM D7119, "Standard Guide for Sampling Spray Polyurethane Foam
and Coating in Roofing," was approved in 2007 and provides
guidelines for the field removal of test specimens from new or
existing SPF roof systems. It describes the types and purposes of
sample cuts, visual inspection techniques, laboratory physical
property tests, and repair procedures for core and slit sample
ASTM D7425, "Standard Specification for Spray Polyurethane Foam
Used for Roofing Applications," was approved in 2008 and provides
types and physical properties of SPF used in roof systems.
Two previously existing ASTM International standards applicable
to SPF roof systems are ASTM...
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