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Significance and Use
This guide outlines general procedures and precautions necessary for correct and safe repair and recoat of SPF roofing systems.
This guide is not all inclusive; this guide is intended to supplement detailed instructions from manufacturers and safety requirements required by law.
1.1 This guide covers the procedures for the repair and recoating of existing spray polyurethane roofing systems.
1.2 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.
1.3 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C1029 Specification for Spray-Applied Rigid Cellular Polyurethane Thermal Insulation
D5469 Guide for Application of New Spray Applied Polyurethane Foam and Coated Roofing Systems
D6083 Specification for Liquid Applied Acrylic Coating Used in Roofing
SPFA StandardsAY107 Spray Polyurethane Foam Blisters, Their Causes, Types, Prevention and Repair
CPI StandardCenterforThePolyuret Guide for Safe Handling and Use of Polyurethane and Polyisocyanurate Foam Systems
ICS Number Code 83.100 (Cellular materials); 91.060.20 (Roofs)
UNSPSC Code 30151500(Roofing materials); 13111300(Foams)