VMZINC Standing Seam Roofing - Standing Seam Roof On Plywood (Cold, Vented)

VMZINC Standing Seam Roofing - Standing Seam Roof On Plywood (Cold, Vented)

VMZINC UK Third party certifications:
  • Environmental Product Declaration (EPD)

    Environmental Product Declaration (EPD)

    Certificate type

  • QA Certificate

    QA Certificate

    Certificate type

Vented standing seam roofing.

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+44 (0)203 445 5640 www.vmzinc.co.uk

Application

Suitable for buildings in 1 to 4 humidity classes (dwellings with high occupancy, sport halls, etc) with pitches from 3° to the vertical.

Description

Vented cold roof system for buildings with humidity classes between 1 and 4 using VMZINC Plus on a plywood (non-compatible) substrate.


VMZINC PLUS is installed on the plywood. A minimum 50 mm continuous air gap must be left clear beneath the plywood. Continuous ventilation openings are made at the ridge and eaves at least 10 mm wide protected by insect mesh and correspond to BS 5250: 2002.

 

VMZINC Membrane can be used between the VMZINC PLUS and the plywood, although this is optional but may have the advantage of protecting the plywood prior to the installation of the zinc. The ideal thickness of the plywood is 18 mm and it must be weather and boil proof. WBP plywood is more precisely described as EN 314-2 (bond class 2) and EN 636-2 (timber performance).


It is also recommended to install a vapour control layer on the warm side of the insulation.


Features and benefits:

  • Provides a continuous rigid deck for the VMZINC PLUS.
  • Plywood decking is readily available and widely used.
  • Excellent pull-out resistance.
  • BRE EN 15804 EPD.


System build-up:

  • Interior finish.
  • Vapour control layer.
  • Insulation.
  • VMZINC Membrane.
  • 50 mm ventilated air space (minimum).
  • Rafter.
  • Batten.
  • Plywood.
  • VMZINC PLUS Standing Seam.


VMZINC PLUS:

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.

General information

Color

Blue

Green

Grey

Red

Brown

Finish

Pre-weathered

Natural

Material

Zinc

Shape

Rectangular

Size

0.7 x 430 mm

0.7 x 530 mm

0.7 x 600 mm

Not AZENGAR.

0.8 x 430 mm

0.8 x 530 mm

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WarrantyDescription

50 year

Up to 50 year material warranty available on a project basis.

Uniclass 2015

Ss_30_40_50_95 Zinc sheet fully supported roof covering systemsPrimary

CAWS

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

Specification data - Zinc sheet fully supported roof covering systems Enhanced data

System performance

Structural performance – wind actions

Design of zinc sheet fully supported roof covering systems

Durability

Aesthetic performance

Fire performance

Sarking or roof boarding

18 mm plywood - EN 314 bond class 2 and EN 636-2 timber performance.

A 50 mm minimum vented cavity must be created under the plywood using a batten. The cavity must have a 10 mm open air inlet at the eave and a 10 mm open air out let at the ridge.


Membrane

VMZINC Membrane.

Placed over insulation, VMZINC PLUS applied directly over plywood.

Insulation

As required.

Air and vapour control layer

A VCL should be installed on the warm side of the insulation.

Carrier

Batten.

Substrate

Plywood.

Zinc

Zinc-titanium-copper.

Longitudinal joints

-

Form

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.

Cross joints

-

Form

Double lock welts.

Roof steps.

Eave details

-

Form

Dog tooth.

Swept eave on T plate with water check.

Fixings

Fixed with cleats using a 6 mm rebate on the substrate.

Verge details

-

Form

Standing seam verge.

Fixing

-

Top edge

VMZINC stainless steel sliding clip.

Bottom edge

The eave should be fixed to a T plate with water check which must be secured using cleats.

Ridge and hip details

-

Form

G3 ridge.

Traditional with upstand.

Fixings

Ridge clip G3.

Samples required

Product samples

Execution

Layout and zinc work generally.

System completion

Submittals (e.g. operation and maintenance manuals).

Product Reference

VMZINC Standing Seam Roofing - Standing Seam Roof On Plywood (Cold, Vented)

Finish:

Available in a choice of either natural finish or eight pre-weathered finishes as well as bespoke PIGMENTO colours.

Pre-weathered.

Natural.

Only available with Natural colour option.

Standard

EN 15804, ASTM D 968, ISO 14001 and ISO 9001.

Coil

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.

Not AZENGAR.

0.8 x 500 mm.

0.8 x 600 mm.

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Centres

Standing seam centres.

430 mm.

530 mm.

600 mm.

Not AZENGAR.

Panel weight

6 kg/m² (approximately).

Fire performance:

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.

Colour

Natural VMZINC®.

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.

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Environmental information

Contains Red List materials

No

Country of material origin

France

Country of product manufacture

France

Embodied carbon

See EN15804 EPD.

-

Recyclability

100%

Fully recyclable. 

Recycled content

20%

20% (approximately).

Digital objects

Platform Compatible Version Certified to
IFC

IFC2X3

1

1.3
Revit

Revit 2016

2

2
Download now from NBS National BIM Library

Literature

VMZINC Standing Seam Installation Guide - Information about the Use and Detailing of VMZINC March 2018

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 Roofing + Rainwater Design Specification & Installation Guidelines Dec 20

VMZINC General Technical Recommendations - Design Guidance for Architects & Contractors.

VMZINC General Technical Recommendations - Design Guidance for Architects & Contractors.

VMZINC EN15804 Natural Rolled Zinc

VMZINC EN15804 Natural Rolled Zinc

ISO 9001

ISO 9001

ISO 14001

ISO 14001

EN15804 Pre-Weathered QUARTZ PLUS & ANTHRA PLUS

EN15804 Pre-Weathered QUARTZ PLUS & ANTHRA PLUS

BRE Certification EN15804 Pre-Weathered Rolled QUARTZ & ANTHRA

BRE Certification EN15804 Pre-Weathered Rolled QUARTZ & ANTHRA

BRE Certification EN15804 Pre-Weathered PIGMENTO & STRAT

BRE Certification EN15804 Pre-Weathered PIGMENTO & STRAT

Third party certifications

Environmental Product Declaration (EPD)

Environmental Product Declaration (EPD)

EPD EN15804

QA Certificate

QA Certificate

BROOF t4 Standing Seam on Plywood Vented

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