Verified by manufacturer 2 months ago
Warm, non-vented standing seam roofing.
The system can be used for roofs with a pitch from 3 to 70º and for buildings with humidity classes of between 1 to 4 (dwellings with high occupancy, sport halls, etc). The Metdeck/Warmdex must be completely dry before, during and after installation
Non-vented warm roof system for buildings with humidity classes between 1 and 4 using VMZINC Plus and an engineered panel as a substrate.
The substrate of the Metdeck/Warmdex composite panels (on the warm side of the roof panel) must be covered with Aludex Max a continuous aluminium foil-backed bituminous self-sealing vapour barrier. Condensation risk must be assessed for each individual project or individual project component in accordance with BS 5250: 2002. Specification may need to be adapted to the internal humidity load of the building.
The VMZINC Membrane should be installed between the VMZINC PLUS and the Metdeck/Warmdex composite panels, then dressed into the gutter.
Metdeck/Warmdex composite panels, incorporating 18 mm WBP plywood factory-bonded to a Resol insulation core, are mechanically fixed to the substrate (vapour barrier on concrete, metal or timber deck). The number of fixings required will vary with specific building details and geographical location, and must be assessed on an individual basis.
Features and benefits:
A product which allows zinc to be installed on ventilated plywood as well as specific warm (non-ventilated) substrates. The product consists of VMZINC (in all finishes) having a 60 μm coating applied to the underside thus allowing a more varied amount of substrates to be used and eliminating the risk of the formation of white rust on the underside of the zinc standing seam panels. VMZINC PLUS resists to an abrasion of 140 L when tested in accordance with ASTM D 968.
Life Cycle Analysis (LCA):
VMZINC undertakes Life Cycle Analysis (LCA) tests on its products and publishes Environmental Product Declarations (EPDs), such as BRE Environmental Profiles. These provide users with comprehensive, reliable and transparent information on relevant environmental characteristics. The information is also used by VMZINC as the basis for its eco-design approach.
Up to 50 year material warranty available on a project basis.
H74/5 Zinc sheet fully supported covering to dormers
H74/150 Zinc sheet fully supported covering to dormers
H74/110 Zinc sheet fully supported roof covering
Structural performance – wind actions
Design of zinc sheet fully supported roof covering systems
VMZINC breather membrane.
Between the VMZINC PLUS and plywood bonded to phenolic foam.
18 mm plywood factory bonded phenolic insulation.
Air and vapour control layer
18 mm plywood.
0.7 mm galvanized steel deck.
VMZinc breather membrane.
Stainless steel clips and wood screws.
Standing seam joints.
Fixing standing seam joints
VMZINC clips, 1.4301 (304) stainless steel. The thickness of the fixing clip is 0.5 mm. The sliding clips have a moving component, which is 0.4 mm thick, and a 70 mm long slot.
Fasteners to substrate
It is recommended that screws be used to secure the clips with three being used per sliding clip. The use of nails offers significantly less resistance, but in the event of using nails, contractors are advised to use ring shank nails.
Double lock welts.
Swept eave on T plate with water check.
Fixed with cleats using a 6 mm rebate on the substrate.
Standing seam verge.
VMZINC stainless steel sliding clip.
The eave should be fixed to a T plate with water check which must be secured using cleats.
Ridge and hip details
Traditional with upstand.
Ridge clip G3.
Layout and zinc work generally.
Submittals (e.g. operation and maintenance manuals).
VMZINC Standing Seam Roofing - Standing Seam Roof On Plywood Bonded To Phenolic Foam (Warm, Non-vented)
Available in a choice of either natural finish or eight pre-weathered finishes as well as bespoke PIGMENTO colours.
Only available with Natural colour option.
EN 15804, ASTM D 968, ISO 14001 and ISO 9001.
Coil thickness x coil width.
Non-standard widths between 60–600 mm can also be produced.
0.7 x 500 mm.
0.7 x 600 mm.
0.7 x 670 mm.
0.8 x 500 mm.
0.8 x 600 mm.
0.8 x 670 mm.
Standing seam centres.
6 kg/m² (approximately).
0.14–0.25 W/m²K (depending on thickness).
Consult literature for further details.
Fire classification A1 (Natural Zinc, QUARTZ ZINC, ANTHRA-ZINC and AZENGAR) and A2-s1,d0 (PIGMENTO and VMZINC PLUS) according to EN 13501-1:2002.
Only available with Natural finish option. Natural VMZINC has a shiny metallic appearance when new and develops a patina over time. In facade applications, it may take 10 years for the matt grey patina to form. It can be quickly soldered without removing the patina.
Standard PIGMENTO® BLUE.
Standard PIGMENTO® GREEN.
Standard PIGMENTO® BROWN.
Standard PIGMENTO® RED.
Standard PIGMENTO® GREY.
PIGMENTO® STORM GREY.
PIGMENTO® CHARCOAL GREY.
QUARTZ-ZINC offers an appearance and texture that does not change over time. When QUARTZ-ZINC is scratched, it will self heal. The grey tones of QUARTZ-ZINC blend well with existing construction materials – ideal for refurbishment.
ANTHRA-ZINC with its visible grain matches the colour of slate and blends well in combination with photovoltaic panels.
AZENGAR is the surface finish from VMZINC which is the first engraved zinc giving a product with a matt, heterogeneous and light aspect. AZENGAR can be used in the same fashion as other VMZINC products for both roofs and facades.
NBS BIM object standard
This BIM object has been authored to meet the requirements of the NBS BIM object standard.
Find out more about the NBS BIM object standard.
VMZINC Standing Seam Installation Guide - Information about the Use and Detailing of VMZINC March 2018
VMZINC Roofing + Rainwater Design Specification & Installation Guidelines Dec 20
VMZINC General Technical Recommendations - Design Guidance for Architects & Contractors.
VMZINC EN15804 Natural Rolled Zinc
EN15804 Pre-Weathered QUARTZ PLUS & ANTHRA PLUS
BRE Certification EN15804 Pre-Weathered Rolled QUARTZ & ANTHRA
BRE Certification EN15804 Pre-Weathered PIGMENTO & STRAT
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VMZINC Standing Seam Roofing - Standing Seam Roof On Plywood (Cold, Vented)
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