SUNTUF Roofing Panels, 26 in. x 72 in., Solar Gray, 10-Pack

A: Hello LynJ, Depending on the frame, we recommend the MetalTite for metal framing and WoodTite for wood framing. Palram recommends the use of Palram/Suntuf brand EPDM washered fastener only. Palram fasteners for Suntuf panels are tested and approved to be compatible with polycarbonate, whereas other brands may not be. Incompatible washers can result in panel failure that is not covered by warranty. Contact Palram for information about availability of optional larger washers if local building codes prescribe their use, or if installation is in high wind area. Pre-drill all fastener holes with a 1/4" drill bit for Woodtite and Metaltite fasteners to accommodate for the thermal movement of the panel. Over-drill by an extra 1/16" for other fastener diameters. Failure to accommodate for thermal movement will cause buckling of the sheet. Use 2" fasteners for all roof applications. 1" fasteners are adequate for vertical applications (i.e., side walls, end walls, and partitions). DO NOT Over-tighten fasteners causing the rubber washer to compress. Tighten all fasteners until they are ”snug.” If the EPDM washer becomes deformed, the fastener is too tight. Drive fasteners perpendicular to the Suntuf face (see illustration given to the right).Tighten moderately by hand or with an adjustable torque power screwdriver. NEVER use an impact wrench / driver for fastening Suntuf. Thank you, Palram Americas