Standard Guide for Application of New Spray Applied Polyurethane Foam and Coated Roofing Systems
4.1 This guide outlines general procedures and precautions necessary for correct and safe application of spray applied polyurethane foam roofing systems.
4.2 This guide is not all-inclusive; this guide is intended only to supplement detailed instructions from manufacturers and safety requirements established by law.
4.3 Refer to Polyurethane Foam Contractors Alliance AY-104 and NRCA Spray Polyurethane Foam-Based Manual for industry guidelines.
1.1 This guide covers the application of new roofing systems consisting of spray applied polyurethane foam insulation, elastomeric protective coatings, and optional mineral granules. This guide does not apply to retrofit or remedial applications.
1.2 Design criteria associated with the installation of spray in place polyurethane foam are beyond the scope of this specification.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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