Manufacturer Certifications pillar — GAF, Owens Corning, CertainTeed, and tiered programs

Major shingle manufacturers run tiered certification programs — GAF Master Elite, Owens Corning Platinum Preferred, CertainTeed SELECT ShingleMaster, and similar — that signal a contractor has met the manufacturer's business and training standards. When Vfane verifies this pillar, a person searches the manufacturer's public contractor locator (gaf.com/en-us/roofing-contractors, owenscorning.com/roofing, certainteed.com/find-a-pro, and others) and records the manufacturer and tier shown, along with the date it was checked. One important nuance: manufacturer certifications are partly tied to the contractor's purchasing volume with that manufacturer, not purely to installation competency — a high-volume top-tier contractor may have newer crew members whose specific training depth varies, so the certification is best read as "meets the manufacturer's business standards," not "guarantees every installer's craftsmanship." The certification is typically a prerequisite for enhanced manufacturer warranties (GAF Golden Pledge, Owens Corning Platinum Protection, CertainTeed SureStart PLUS), which add workmanship coverage backed by the manufacturer rather than only by the contractor. Homeowners weighing this pillar often pair it with the Labor Warranty pillar to distinguish business-standing signals from crew-level craftsmanship signals. [Source: GAF contractor locator; Owens Corning contractor locator; CertainTeed SureStart PLUS program]