NBS Source
VMZINC Standing Seam Roofing - Standing Seam Roof On Open Gap Boarding (Cold, Vented)

VMZINC Standing Seam Roofing - Standing Seam Roof On Open Gap Boarding (Cold, Vented)

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

    Environmental Product Declaration (EPD)

    Certificate type

Standing seam zinc roofing.

Jump to:
+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 (as well as soffits).

Description

Vented cold roof system for buildings with humidity classes between 1 and 4 using VMZINC on an open gap softwood boarding (compatible) substrate.

 

A minimum 50 mm continuous air gap must be left clear beneath the roof boarding. Continuous ventilation openings are made at the ridge and eaves. In order to maintain the integrity of the roof, a VMZINC breather membrane should be installed on the cold side of the insulation, and a vapour control layer appropriate to the building’s humidity levels laid on the warm side of the insulation.


VMZINC must be installed directly over the open-gap softwood boarding without the use of any membrane. The boarding should be clean and dry, 100–150 mm wide, 18 or 24 mm thick, according to the rafter centres.


The roof boards are fixed perpendicularly to the direction of the pitch leaving a 3–5 mm gap between them. They are securely fixed to the structure.


Features and benefits:

  • A very versatile and easy to install substrate.
  • Flexible because it also permits complex shapes to be clad in zinc.
  • Excellent pull-out resistance.
  • Easy installation using traditional clips.
  • BRE EN 15804 EPD.


System build-up:

  • Interior finish.
  • Vapour control layer.
  • Insulation.
  • VMZINC Membrane.
  • 50 mm ventilated air space (minimum).
  • Rafter.
  • Batten.
  • Open-gap timber boarding.
  • VMZINC Standing Seam.


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

Show more

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 open gap softwood boards.

With 50 mm minimum vented cavity, 10 mm open air inlet at the eave and 10 mm open air outlet at the ridge. 50 mm cavity created with a batten.


Membrane

VMZINC Membrane.

Placed over insulation, VMZINC applied directly over open gap softwood boards.

Insulation

As required.

Air and vapour control layer

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


Carrier

Batten (Rafters can be metal or timber).

Sheet underlay

-

Fasteners

Screws as required.

Timber cores for batten roll joints

-

Fasteners to substrate

Stainless steel fixed and stainless steel sliding clips.

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 Open Gap Boarding (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, 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.

Show more

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.

Show more

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

Similar products from VMZINC UK

VMZINC Standing Seam Roofing - Compact Roof (Warm, Non-vented)

VMZINC Standing Seam Roofing - Compact Roof (Warm, Non-vented)

VMZINC Standing Seam Roofing - Standing Seam Roof On Metal Faced Panels (Warm, Non-vented)

VMZINC Standing Seam Roofing - Standing Seam Roof On Metal Faced Panels (Warm, Non-vented)

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

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

VMZINC Standing Seam Roofing - Standing Seam Roof On Plywood Bonded To Phenolic Foam (Warm, Non-vented)

VMZINC Standing Seam Roofing - Standing Seam Roof On Plywood Bonded To Phenolic Foam (Warm, Non-vented)

VMZINC Standing Seam Roofing - Structural Roof (Warm, Non-vented)

VMZINC Standing Seam Roofing - Structural Roof (Warm, Non-vented)