Double-Lok® is a standing seam roof system that attaches to sub-framing using a variety of concealed, interlocking clips that provide for minimum panel penetrations. Double-Lok panels can be used on new construction as well as retrofit on existing structures. With fewer exposed fasteners (by 80%) than traditional side lap panels, this panel design provides a high degree of weathertightness. Panel penetration is eliminated over the entire building envelope other than at the end laps and panel ends which are connected by a compression joint. The panels are factory notched at both ends with pre-punched holes, and the end laps feature a 16-gauge backup plate with pre-punched holes.
Coverage Widths: 18″, 24″
Minimum Slope: 1/4:12
Panel Attachment: Concealed Fastening System; Low, High and 2″ Stand-Off Sliding Clips
Gauges: 24 and 22
Finishes: Smooth (standard); Embossed (optional)
Coatings: Galvalume Plus®, Signature® 200, Signature® 300, Signature® 300 Metallic
Ratings: Tested by independent laboratories in accordance with ASTM E283 and E331 (for air infiltration, water penetration, and wind uplift). UL 90 and FM rated.