Double Lock Standing Seam (DLSS) on open-gap timber boarding
- Roofing
- Clips
- Hidden
- Standing
- Standing seam
- A very versatile and easy to install substrate
- Easy installation using traditional clips
- Flexible because it also permits complex shapes to be clad in zinc
- Traditional buildup for zinc that is proven for centuries
General information
Standing seam roofing panels on vented open-gap timber boarding is a roof system with a vented cold substrate and the system that has been used for over 200 years.
Areas of application
All types of roofs: low slope, curved, concave, convex, and domes.
All types of buildings: commercial, public buildings, collective and individual housing.
This build up can be used in areas where snow loads are heavy, possibly remaining on the roof more than four weeks.
Technical data
| Material Thickness | 0.7mm (0.027") |
| Seam Height | 1" or 1.5" (25mm or 38mm) |
| Standard Coverage Dimensions | 16 7/8" OC (1") or 15 7/8" OC (1.5") 428mm OC (25mm) or 403mm OC (38mm) |
| Maximum Dimensions | 30'-0" Length (9.14m) |
| Minimum Dimensions | 4" OC (width) (100mm) |
| Weight | ~1.38 lbs for 16 7/8" (428mm) OC Panels |
| Minimum Slope | 1:12 (4.76⁰ or 8.3%) |
| Drainage Mat Required | Delta VMZINC Mat or VMZINC Approved Equal |
Finishes
See all aspects-
AZENGAR PLUS -
ANTHRA-ZINC PLUS -
PIGMENTO Brown PLUS -
Natural zinc PLUS -
PIGMENTO Blue PLUS -
PIGMENTO Green PLUS -
PIGMENTO red PLUS -
QUARTZ-ZINC PLUS
Documents and drawings
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Installation
See all our installation videosDescription
VMZINC must be installed directly over the open-gap softwood boarding without the use of any membrane. The boarding should be clean and dry, 100mm to 150mm wide, 18mm or 24mm thick, according to the rafter centres. Any wood treatment products (fungicides, insecticides) must be dry and completely neutral in relation to VMZINC.
The roof boards are fixed perpendicularly to the direction of the pitch leaving a 1/8" to 1/4" gap between them. They are securely fixed to the structure.
Maximum difference in height between roof boards should not be more than 1/16". The deflection measured under a rigid 24" long straight edge cannot exceed 1/16" in any direction. The roof board nails are countersunk in order to avoid any contact with the VMZINC.
Metal salt solutions must not be used on the timber boarding.
The panels should be installed with the protective film in place. Protective film is recommended to be removed within 60 days post installation.