Description: DoubleLok  is a metal standing seam roofing product attached to sub-framing using a variety of concealed, interlocking clips that provide for minimum panel penetrations. This panel can be used on new construction as well as retrofit on existing structures. This panel design provides a high degree of weather tightness and has been tested by independent laboratories in accordance with ASTM E283 and E331 (for air infiltration, water penetration, and wind uplift).

Gauge: 24 (std.), 22 available by request

Length: 50' maximum is standard but longer lengths available by special request.

Fasteners: Concealed fastening system. The clips are available as floating or fixed. Two different clip heights are available to allow for thermal blocks.

Finish: Galvalume and MBCI Architectural Series

Manufactured: Multiple facilities within NCI

Usage: New and retrofit applications.

Limitations: Recommended for roof slopes of 1/4:12 or greater. When using the fixed clip we recommend for double slope buildings 200' wide or less and single slope buildings 100' wide or less. (May vary upon extreme weather conditions.) Oil-canning is not a reason for rejection.

Features:
- No panel penetration is required over the building envelope other than at the end laps, and panel ends which are   connected by a compression joint
- Panel side laps arrive at the job site containing a pre-applied sealant
- Optional product and weather tightness warranties
- Factory notched at both ends with pre-punched holes
- End laps have a 16 gauge backup plate with pre-punched holes
- High or low clips
- UL 90
- 80% less exposed fasteners than traditional side lap panels and all fasteners are long life
- Panel available in Signature 300 Series
- The side lap has been tested for air infiltration and water penetration under ASTM E283 and E331 methods

Benefits:
- Specially designed to seal out the elements
- Contributes to the system's weather tight construction and ease of erection
- Severe weather tightness and additional customer confidence
- Field installation can commence or finish from either end of building or on both sides simultaneously
- Solid connection at end laps and proper fastener spacing. The pre-punched holes improve erection and ensures    proper panel placement
- Accommodates variety of insulation systems including 1 " thermal spacers at the purlins
- Lower insurance costs
- Increased weather tightness and improved appearance
- 20 year finish warranty
- Minimal air infiltration and water penetration and acceptability among specifiers