GAF Timberline HDZ Wind Warranty in Illinois: Why Your Installation Method Determines Whether Your Warranty Will Hold
Direct Answer: Does GAF Timberline HDZ Have a Strong Wind Warranty? GAF Timberline HDZ shingles have been marketed by GAF as eligible for enhanced wind warranty coverage, including GAF’s WindProven Limited Wind Warranty, when installed according to GAF’s requirements and with the required qualifying GAF accessory products. GAF describes Timberline HDZ as using LayerLock Technology…