Facades - VMZinc€¦ · All VMZINC facade systems can be used for new build and refurbishment...

FacadesFully supported and rainscreen facade systems

Guidelines for design and specification

FACADE

Uniclass

CI/SfB(41)

G312:G251:P45

March 2018Rh7Nh7

2 Facade

Contents

Company profile VMZINC® has been manufacturing a widerange of rolled zinc products used primarilyfor building envelopes since 1837. Inaddition to batten cap and standing seamroof systems, products include rainwatersystems, a wide range of cladding systems,including a number of rainscreen facadeproducts. Since its creation the companyhas also produced decorative roofingproducts such as dormers, bull’s eyes,weather vanes, finials and balustrades.

Facade

Front cover building credit: Broadway Malyan

3 ......... Why use VMZINC facades?

4 ......... Sustainable performance

6 ......... The systemsUnderlying principles

8 ......... Surface finishes

10 ........ Fully supported facades10. Standing seam14. Flat lock19. Adeka

20 ....... Rainscreen facades20. Overlapping panel24. Interlocking panel28. Sine wave32. VMZ composite36. Mozaik38. Customised panels

42 ....... Further technical information

43 ....... Other VMZINC systemsRoofing systemsOrnamentsRainwater systems

Facade

3Facade

Why use VMZINC facades?

Zinc is among the most sustainable metalsused in construction today and was first usedfor roofing and gutters in large Europeancities at the beginning of the 19th century.Batten cap zinc panels were used formansard roofs but towards the end of the20th century architects began to use zinc as away to clad facades. Over the past 20 yearsVMZINC has developed a range of facadesystems that vary in dimension, joint size and type.

All VMZINC facade systems can be used fornew build and refurbishment alike and incombination with many other buildingmaterials. As with all VMZINC productsexceptional durability, very limitedmaintenance and a wide range of beautifulfinishes are offered by VMZINC facades.

n Lightweight and durable

n Fully recyclable

n A design life of 80 years

n Virtually maintenance-free

n Complex shapes can be clad usingVMZINC facades

n All flashings and trim can be in thesame material

n BRE Green Guide certified/EPD EN 15804

n Conforms to EN 988

n Available in a choice of either Naturalzinc, engraved Azengar or 7 pre-weathered finishes

n Cost effective

n Wide range of panel types

n Fire classification A1 and A2-s1,d0according to EN 13501-1:2002

Introduction

Benefits of the VMZINC

facade systems

Sustainable performance

4 Facade

Facade

Low energy used in the

manufacturingprocess

VMZINC rolled zinc products are used inconstruction industries throughout the worldfor their sustainability, distinctive appearance,and low maintenance requirements. As withroofing and rainwater systems, manufacturingprocesses for our facade systems presents alow environmental impact, particularly withregard to energy expenditure.

VMZINC facade systems benefit from zinc’sself-protecting patina which develops as aresult of exposure to water and carbon dioxide.Over the last 50 years the quantity of sulphurdioxide in the atmosphere has been greatlyreduced. SO2 being the key agent of corrosionmeans that corrosion rates are now less than1μm per year on facades. With an initialthickness of 1mm, the estimated life span of azinc facade is well over a hundred years.

95% of old rolled zinc recovered every yearin Western Europe, currently estimated at100,000 tonnes, is reused. This representssavings in mining resources of between 1 and 2 million tonnes.

VMZINC undertakes Life Cycle Analysis (LCA)tests on its products and publishes Environmental Product Declarations (EPDs),such as BRE Environmental Profiles, availablefrom our website www.vmzinc.co.uk andwww.greenbooklive.com. These provideusers with comprehensive, reliable andtransparent information on relevant environmental characteristics. Theinformation is also used by VMZINC as thebasis for its eco-design approach.

Low corrosion,long life

Recycledmaterial

Comparative energy expenditure in manufacture

Compared with other metals, very little energy is needed to manufacture zinc metal from ore –less than half the consumption of copper and stainless steel and less than a quarter of that used foraluminium. CO2 and other greenhouse gas emissions are also, therefore, proportionally less.

A naturalmaterial

Sustainable performance

Facade

5Facade

Environmental profiles measure theimpacts of a construction material, productor building system throughout its life, notonly during its manufacture, but also itsuse in a building over an 80-year period.This includes its extraction, processing, useand maintenance and its eventual disposal.

VMZINC has been audited and reviewed byBRE Global. The Life Cycle Assessment (LCA)modelling derives a Certified EnvironmentalProfile and a Green Guide rating has beenproduced.

A wide range of zinc roofing and claddingsystems has been audited with thesystems receiving a Green Guide rating ofup to A+. These profiles can then beapplied to the BREEAM (BRE EnvironmentalAssessment Method) allowing VMZINC tocontribute to schemes such as the Code forSustainable Homes. VMZINC will also beoffering BRE EN 15804 environmentalproduct declarations for its products.

Since 2009, VMZINC has been OHSAS 18001certified, thus conforming to occupationalhealth and safety management systems.

VMZINC manufacturing plants haveconformed to ISO 14001 since 2004/5 soprocesses are strictly controlled to ensurethat emissions are significantly below thenational regulation threshold.

ISO 9001 is the internationally recognisedstandard for the quality management ofbusinesses and applies to all VMZINCproducts and services. Certification wasoriginally obtained in 1997 and updated inNovember 2003 to conform to ISO 9001: 2000.

ISO 14001

ISO 9001

OHSAS 18001

BRE

The systemsUnderlying principles

6 Facade

Facade

VMZINC has been used as a material to clad facades for manydecades. Initially traditional roofing systems such as standing seampanels were installed as `roofs on walls`. Flat lock panels have alsobeen installed for many decades. Both of these systems requirevented continuous substrates and are commonly installed bytraditional hard metal roofing contractors. Over the past two decadesrainscreen facades have become very popular and VMZINC offers anumber of these rainscreen systems.

A raincreen facade is an outer skin that is back-ventilated by an airspace that is 38mm deep. The system can be used on both newbuild and renovation but always allows the outer layer to breathewhilst the inner layer deals with thermal insulation and air leakage.All joints are dry and do not use any form of sealant.

VMZINC wall panels can be joined using three mechanical joints:n Standing seam n Flat lockn Reveal

VMZINC PLUS is a unique patented product that allows zinc to beinstalled on ventilated plywood (page 10).

The product consists of VMZINC (in all finishes) having a 60μmcoating applied to the underside thus allowing a more variedamount of substrates to be used and eliminating the risk of theformation of white rust on the underside of the zinc standing seampanels. VMZINC PLUS resists to an abrasion of 40 litres when testedin accordance with ASTM D 968.

Introduction

Rainscreenfacades

Joint typesStanding seam

Flat lock

Reveal

VMZINC PLUS

Joint types

For buildings where combustible materials such as plywood cannotbe used (for example residential developments over 18m in height),galvanised steel decks can be used as a substrate for the flat lockand standing seam panels. By combining this with mineral boardinsulation, all materials in the wall build up are A1 or A2 according to EN 13501. The steel deck must be at least 0.7mm thick and havedimensions allowing clips to be attached at the required spacings.Corrugated steel deck can only be used on vertical surfaces. For allsurfaces such as sills, parapets, etc the substrate must be continuous.

VMZINC wall panels will offer very different aspects depending on thetype of panel used. Whilst standing seam panels can offer acontinuity from roof to wall they will not offer absolute flatness. Flatlock panels also offer a more textured finish. The interlocking panelsystem provides flat panels but they are limited to 333mm in width.VMZ composite material on the other hand can offer excellentflatness whilst maintainin panels of up to 1100mm wide. For panelsbetween 333mm and 600mm in width, Mozaik panels should beconsidered – see pages 36-37.

Developmentsover 18m high

The systemsUnderlying principles

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7Facade

Standing seam panels

Interlocking panels

VMZ composite panels

Flat lock panels

Please contact us for further

design assistance

Panel sizeand

flatness

VMZINC wall panels will offer very differentaspects depending on the type of panelused. Whilst standing seam panels can offera continuity from roof to wall they will notoffer absolute flatness. Flat lock panels alsooffer a more textured finish. The interlockingpanel system provides flat panels but theyare limited to 333mm in width. VMZcomposite material on the other hand canoffer excellent flatness whilst maintainingpanels of up to 1100mm wide.

8 Facade

Surface finishes

Facade

Natural VMZINC®

QUARTZ-ZINC®

ANTHRA-ZINC®

Natural VMZINC hasa shiny metallicappearance whennew and develops apatina over time. Infacade applications,it may take 10 yearsfor the matt greypatina to form. It canbe quickly solderedwithout removingthe patina.

QUARTZ-ZINC offers anappearance andtexture that does notchange over time.When QUARTZ-ZINC isscratched, it will selfheal. The grey tonesof QUARTZ-ZINC blendwell with existingconstructionmaterials – ideal forrefurbishment.

ANTHRA-ZINC with itsvisible grain matchesthe colour of slateand blends well incombination withphotovoltaic panels.

AZENGAR® AZENGAR is the newsurface finish fromVMZINC which is thefirst engraved zincgiving a productwith a matt, heterogeneous andlight aspect.AZENGAR can beused in the samefashion as otherVMZINC products forboth roofs andfacades and is nowavailable with thePLUS coating.

Natural VMZINC®

ANTHRA-ZINC®

QUARTZ-ZINC®

AZENGAR®

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9

Surface finishes

PIGMENTO finishesoffer a unique range ofcolours (Blue, Green,Brown, Red) thatenhances any building.This natural productenables the texture ofthe QUARTZ-ZINC tostill be seen whilstoffering the designerthe choice of colour tocomplement otherelements of a facadeor roof.

The colouration ofthe zinc is achievedwith a specialpigment layer thatenhances thequalities of the zincwithout presenting ablock colour. Thisproduct is tested toEN13523-10/2010 and EN 15523-3/2001.

PIGMENTO, available infive standard colours,provides an increasedresilience, however in asevere non-rinsedmarine environment(1km from the sea),staining is still possibleand therefore thematerial should not beused in this application.

The PIGMENTO rangeis now available inbespoke colours.Samples of thecolours indicatedhere are availableupon request. Forother colours asample and RALcolour should besubmitted in order toassess feasibility.

StandardPIGMENTO®

Facade

New

BespokePIGMENTO®

StandardPIGMENTO® BLUE

Bespoke PIGMENTO®

colours

Please contact us for samples

StandardPIGMENTO® GREEN

StandardPIGMENTO® RED

StandardPIGMENTO® GREY

StandardPIGMENTO® BROWN

PIGMENTO®

ORANGEPIGMENTO®

YELLOW

PIGMENTO®

PURPLEPIGMENTO®

BEIGE

10 Facade

Facade

Standing seam

Advantages of the

standing seampanel system

n Covered by Code of Practice 143-5: 1964

n Concealed fasteners

n Roof to wall continuity

n Versatile

n Horizontal, vertical and diagonal installation possible

Typicalstanding seampanel systemconstruction

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2

3

4

VMZ standing seam panels in VMZINC PLUS

Fixing clip

18mm plywood or steel deck (see page 6)

Battens creating a vented 38mmairspace

Insulation protected by VMZ Membrane5

1

2

3

4

5

For more information contact us on01992 822288

or send an e-mail [email protected]

Maximum panel size: 430 x 4000mm

Note:Supporting structure is indicative and can be blockwork asshown or metal framing or other appropriate materials.

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11Facade

Standing seam

Overview VMZ Standing Seam is a ventilated cladding system that can beused for both renovation and new build. As the name standingseam implies, the system consists of seams that can be crimpedin a single or double lock (for greater flatness single lock seamssometimes referred to as angle seams are recommended). Thesystem has a traditional look with the seams being 25mm high.The trays can be installed horizontally, vertically and at an angle.

This facade system offers the possibility to clad all types of walls:flat, curved or complex forms. Another great advantage of thiszinc facade system is that it can be used on both walls and roofs,thus allowing roof and wall to blend as one (standing seam roofsrequire double lock seams). The cladding panels can be varioussizes but we would not recommend that they be more than 4m inlength and 430mm in width. All aspects of VMZINC can be usedwith 0.8mm being the recommended thickness for facades.

Facade

Standing seam

12 Facade

Structure

Installation

Fixed clip

The system is very lightweight as the panels weigh no more than7kg/m2 and can be fixed back to both soft wood open gapboarding and plywood. Both substrates require the use of 18mmthick wood and a vented airspace should be left behind thetimber of at least 38mm. The plywood must be weather and boilproof. WBP plywood is more precisely described as EN314-3 (gluebond) and EN636-2 (timber performance).When soft wood opengap boarding is used it is possible to omit every other board,however a fully boarded substrate should be used in accessibleareas. The substrate must be flush to within 2mm and all screwsand nails must be countersunk. VMZINC PLUS must be used onplywood substrates. For projects where combustible materialssuch as plywood cannot be used galvanised steel decks can beused as a substrate – see page 6 for further information.

The panels are installed in a sequential order from either left toright or right to left for vertical panels. Horizontal panels must beinstalled from bottom up. For panels less than 2m in length fixedclips can be used. For longer panels sliding clips must be usedtowards the bottom on vertical panels and to the left and right ofthe centre for horizontal panels. VMZINC clips are made from 304stainless steel and each clip must resist a pull-out force of 50daN.It is recommended that screws be used to secure the clips withthree 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.

The panels should be installed with the protective film in place.

Sliding clip

Centre to centre distance between clips:

n 330mm on the main part of the facade

n 200mm on perimeter of the facade (at least 1100mm from building corner)

n 150mm in corner areas

All dimensions in mm

60

Head

10

Slope 1° min.

Sill

Jamb

Windowdetails VMZINC PLUS Standing

Seam

Plywood

VMZINC PLUScontinuous folded strip

VMZINC continuousfolded strip, 0.7mm thick

Insect mesh

VMZINC continuousfolded strip

Compatible masticsealant

VMZINC PLUS flashing

Window frame

VMZINC PLUS sheet clip, 0.7mm thick, width80mm, 2 per m

Loadbearing structure

Ventilated space

VMZINC Membrane

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4

56

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11

Facade

Standing seam

13Facade

30

A

External Corner External CornerAlternative 1

External CornerAlternative 2

Internal Corner

AA

A A

A

AA

Cornerdetails

VMZINC PLUS StandingSeam

VMZINC PLUS continuouscorner strip

VMZINC PLUS solderedclip

Plywood

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2

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3

4

3

1

6

Download the technical drawings of this facade build-up

from our websitewww.vmzinc.co.uk

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6

A = 30mm for trays < 7m in length50mm for trays > 7m in length

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Facade

Flat lock

14 Facade

Typical flat lock

panel systemconstruction

Advantages of the

flat lockpanel system

n Covered by Code of Practice 143-5: 1964

n Concealed fasteners

n Offers great flexibility on panel size and shape



Maximum panel sizes: 600 x 1000mm530 x 2000mm430 x 3000mm

1

2

3

4

VMZ flat lock panels in VMZINC PLUS

Fixing cleat

Fixing strip

18mm plywood or steel deck(see page 17)

Battens creating a vented 38mmairspace

Insulation protected by VMZ Membrane

5

1

2

4

5

6

6

3

Facade

Flat lock

15Facade

Overview VMZ Flat Lock panels, sometimes known asshingles, are installed on a continuousvented substrate on both renovationprojects and new build alike. The systemconsists of panels with 180 degree hemsapproximately 25mm wide that interlockand are held on the substrate using cleats.The system allows a great deal of flexibilityas flat lock panels can be made to manyshapes and sizes. The panels can be square,diamond shaped and rectangular. Themaximum recommended visible width for apanel is 600mm with the maximum lengthbeing 3000mm. The thickness of the zincused will depend on panel dimensions withsmall panels using 0.7mm zinc whereas thelarger panels will require 1mm thick zinc.Increased zinc thickness will offer a flatterpanel, however increasing paneldimensions will have the opposite effectand may induce some unevenness.

Flat lock

Facade

16 Facade

Structure

Installation

The system is very lightweight as the panels weigh no more than8kg/m2 and can be fixed back to both soft wood open gap boardingand plywood. Both substrates require the use of continuous 18mmthick wood and a vented airspace should be left behind the timber ofat least 38mm. VMZINC PLUS must be used on plywood substrates.

The panels are installed in a sequential order from bottom up. Thepanels are held in place using cleats which can be stainless steel, zincor galvanised steel. For larger panels galvanised steel cleats arerecommended. The cleats should be fixed at a maximum of 330mmcentres. For small diamond shaped panels the hems should be slightlynotched thus allowing the cleat to sit securely. When installing largerectangular panels the short side should be fixed with a long fixingstrip. It is recommended that screws be used to secure the cleats. Theuse of nails offers significantly less resistance, but in the event ofusing nails, contractors are advised to use ring shank nails. The panelsshould be installed with the protective film in place.

Facade

Flat lock

17Facade

The sizes and shapesindicated in this tableare standard and aretherefore more costeffective thancompletely bespokesizes. The sizesindicated correspondto dimensions asseen on the finishedwall. All panels aredelivered withstainless steel clips.

VMZINCstandard flat

lock panelsizes

Pattern Width X Length Y Nos of Pieces(mm) (mm) clips per/m2

235 235 2 19

Square 420 420 4 6

590 590 4 3

235 470 3 10

235 940 4 5

Rectangle 420 630 5 4

420 840 6 3

590 885 6 2

274 215 2 33

Diamond – Wide 290 230 2 29

432 336 2 14

371 193 2 27

Diamond – Narrow 391 206 2 24

585 301 2 11

Standard flat lock panel sizes

X

Y

X

Y

X

Y

X Y

Please contact us for other sizes

Example of galvanised steel deck being used as a substrate for flat lock wall panels

18 Facade

Facade

Flat lock

External Corner Internal Corner

30

3040

VMZINC PLUS Flat LockPanel

VMZINC continuouscorner strip

VMZINC PLUS sheet clip

Plywood

1

2

3

4

60

10

Slope 1° min.

Head

Sill

Jamb

Windowdetails

Cornerdetails

VMZINC PLUS Flat LockPanel

Plywood

VMZINC PLUS continuousfolded strip

VMZINC continuousfolded strip, 0.7mmthick

Insect mesh

VMZINC continuouswelted strip



Window frame

VMZINC PLUS sheet clip,0.7mm thick, width80mm, 2 per m

Ventilated space from20 mm to 38mm

VMZINC Membrane


1

23

4

56

7

89

10

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13

1

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1 34

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Facade

19Facade

Adeka

Head

Sill

Jamb

60

VMZ Adeka

Plywood

Thermal insulation

VMZ Unicprofile F4

Insect mesh

VMZ Adeka revealprofile

Compatible mastic seal


Window frame

VMZINC PLUS sheet clip,0.7mm thick, width80mm, 2 per m

VMZINC PLUS foldedclip, imm thick, width250mm, 2 per m

Ventilated space

VMZINC Membrane


Timber fixing pack

VMZINC soldered clip

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Overview

Installationand structure

Adeka is an innovative patented facade androof system based on small pre-formedQUARTZ-ZINC elements featuring a uniquelocking key. For other finishes pleasecontact us.

8.8 elements are required to cover 1m2.Due to the raised edges and 50mmoverlaps Adeka can be used for roofing forslopes of 15 degrees and over.

Adeka can be fixed to both vented opengap softwood boards and vented 18mmplywood with VMZINC Membrane. Thepanels are installed from bottom up withthe key fixing into the lower panel. EachAdeka tile is then secured with 3 screws.Adeka is not supplied with filmed VMZINC.

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20 Facade

Facade

Overlapping panel

Typical overlapping


Advantages of the

overlappingpanel system

n Cost effective

n Concealed fastening

n Full system available in stock For more information contact us on01992 822288


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5

1

2

3

4

VMZINC overlapping panels

Timber framing creating a vented38mm airspace

VMZINC Membrane

Insulation

Supporting structure5

Panel size: 200 x 3000mm

Facade

21Facade

Overlapping panel

Overview The Overlapping Panel system comprises ofan economical kit of panels and flashingsthat can be easily installed on either timberbattens or metal cladding rails. The systemis fixed with screws or with a nail gunresulting in the panels being held in placewith no visible fasteners. Overlappingpanels are 200mm wide and have either adepth of 13mm or 20mm. They areinstalled horizontally and available in 3mlengths in both QUARTZ-ZINC and ANTHRA-ZINC. Overlapping panels can besupplied in PIGMENTO upon request.

22 Facade

Facade

Overlapping panelThe overlapping panels are installed on vertical cladding rails at600mm centres. The rails can be either softwood timber with a50mm supporting width or 40mm wide metal rails (2mm thickAluminium or 1.5mm thick galvanised steel). A vented air space ofat least 38mm must be allowed for behind the panels.

In a sequential order the panels are installed from bottom to topand fixed with a nail gun for timber supports and screwed intoposition when using metal cladding rails. The panels should beinstalled with the protective film in place. A full set of standardflashing trim is available for base, top, corners and windows.

VMZINC PLUS must be used on all non-vertical flashings if opengap soft boards are not being used.

Structure

Installation

60

Slope 1° min.

150

min 60

min

60

Facade

23Facade

Overlapping panel

Windowdetails

Top and base edge

details

Head

Sill

Jamb

VMZ Overlapping Panel

Ventilated space

VMZ Membrane

VMZ Unicprofile F6

Window frame

VMZ Unicprofile F7(adapted)

VMZ Unicprofile F4

Insect mesh

Modified VMZOverlapping panel

Timber block



Compatible flexiblesealant

Clip

Timber board with fall

VMZ Unicprofile F1

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23

4

5

6

7

8

9

10

11

12



VMZ Overlapping Panel

Batten, 38mm thick,width 50mm

VMZ Membrane

VMZINC PLUS cappingpiece

Fixing clip

Insect mesh

Thermal insulation

Roof membrane (this can be cut back)

Ventilated space

Eaves apron strip

Timber support with fall

Modified panel

Timber block

1

2

3

4

56

7

8

9

13

9

Common to all details on this page:Only use a pneumatic nail gun (nailing by handis prohibited) with ring-shanked nails that havea minimum length of 32mm and a flat head witha diameter of 7mm (Paslode hafte or equivalent)

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16 Enlarged detail

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24 Facade

Interlocking panel

Facade

Advantages of the

interlockingpanel system

n Elegant linear panels


n CWCT tested by UK fabricators

n Variable joint size

n Horizontal and vertical installation possible

Typicalinterlocking


1

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3

4

5



1

2

3

4

VMZINC interlocking panels

Metal framing creating a vented38mm airspace

VMZINC Membrane

Insulation



Facade

25

Interlocking panel

Facade

Overview Interlocking Panels consist of a panel face,reveal joint and are fixed in position usinghidden fasteners. The panels can beorientated horizontally or vertically and canbe applied equally to soffits. Panels areavailable in all finishes of 1mm thickVMZINC with standard panel widths being200mm, 250mm and 300mm. Themaximum panel width is 333mm andlength 6m, panels of less than 0.5m arenot recommended. Joint widths can beeither 10mm or 20mm. It should be notedthat panel width = panel face + joint. The depth of the panel is 25mm.

Interlocking panel

Facade

26 Facade

The system is relatively lightweight as the panels weigh no morethan 12kg/m2 and can be fixed back to both timber and metal subframes. Support rails are installed at 600mm centres (maximum).Aluminium rails are 2mm thick with both timber and aluminiumrails requiring a supporting face of at least 40mm. All panels thatare over 2m in length must allow for thermal expansion andcontraction by using stainless steel clips. The fixed point being atthe top of the panel for vertical installation and in the middle forhorizontal installation.

The panels are installed in a sequential order from top to bottomfor horizontal panels. The upper edge of each panel is engagedinto the lower edge of the panel above. The panels are mechanically attached using screws and/or the panel fixing clipthat allows for thermal movement. The panels should be installedwith the protective film in place.


Structure

Installation

Panel fixing clip

Interlocking panel

Facade

27Facade


5050

60

Slope 1° min.

Head

SillJamb

Windowdetails

VMZINC InterlockingPanels

Timber or metalframework

Insect mesh

VMZINC welted panelswith perforated grids

VMZINC cover profile

Compatible mastic seal

Timber fixing pack

VMZINC flashing

VMZINC folded clip,1mm thick, width250mm, 2 per m

VMZINC soldered clip

Window frame

VMZINC sheet clip, 0.8mm thick, width80mm, 2 per m

Intermittent timberfixing packs to provideventilation pathways

VMZINC Membrane


1

2

34

5

6

7

8

9

1011

150

min

.

30

Upstand slope 1° Parapet

detailVMZINC InterlockingPanels


10 or 20mm joint

Panel fixing clip


Roofing membrane

VMZINC capping piecemax 500mm wide

VMZINC folded clip,1mm thick, width250mm, 2 per m

Roof boarding

Insect mesh

Intermittent timberfixing packs to provideventilation pathways

VMZINC Membrane


Roof deck

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UK fabricators can offerCWCT tested panels

Sine wave

28

Facade

Facade

Typical sine wave

systemconstruction

Advantages of the

sine wavesystem

n Offers a more industrial aesthetic

n Very simple installation

n Cost effective

n Available in all finishes

1

2

3

4

VMZ Sine wave panel

Stainless steel screw


VMZINC Membrane

Insulation

Supporting structure

5




6

1

2

3 4

56

29

Sine wave

Facade

Facade

VMZ Sine Wave is a corrugated profile inzinc that can be fixed to a wooden or ametal framework. Along with face fixedVMZ Composite sheets this is one of thefew VMZ facade systems that relies onvisible fasteners. The standard profile forthe panel is an 18/76mm module which isavailable in both 0.8mm and 1mmthicknesses. The system can be used toclad walls both horizontally and vertically.

Overview

Sine wave

30

Facade

Facade

The system is fixed back to timber or metal (galvanised steel atleast 1.5mm thick or aluminium at least 2mm thick) rails that aretypically at centres of between 0.8m and 1.2m (depending onloading). The rails must have a supporting face width of 40mmand should allow a minimum vented space between the VMZ Sinewave panel and the insulation/sheathing of 38mm.

The panels are installed in a sequential order from bottom up.Panels are fixed in place with stainless steel screws on everyother wave. The maximum length for the panels is 6m. For panelsover 3m in length slotted or over-size holes must be pre-drilled toallow the thermal expansion and contraction of the panels to take place.

The panels should be installed with the protective film in place.


Structure

Installation

31

Sine wave

Facade

Facade


60

60

10

Slope 1° min.

Head

Sill

Jamb

100

Windowdetails VMZINC Sine Wave

profile


Insect mesh

VMZINC flashing



Timber fixing pack

VMZINC folded clip, 1mm thick, width250mm, 2 per m

VMZINC PLUS sheet clip, 0.8mm thick, width80mm, 2 per m

Window frame

Ventilated space


1

2

3

4

5

6

78

9

10

11

1

2

7

12

6

9

12

12

2 5

8

3

61

10

11

11

Expansion joint detail

12

11

10

10

65

7

7

4

4

1

2

3

4

100

VMZINC Sine Waveprofile


VMZINC flashing

Panel fixing

Ventilated space


1

2

3

4

5



6

6

5 5

3

4 4

1 1

2 2

VMZ composite

32

Facade

Facade

Advantages of the

VMZ compositesystem

n Very large flat panels

n Option of concealed fasteners

n Suitable for complex panel shapes

n Horizontal and vertical installation possible

n Fire rated EN 13501-1 B-s1,d0

n Peel test to ASTM D-903

Typical VMZ composite

systemconstruction

1

2

3

4

VMZ Composite panel

Fixing clip


VMZINC Membrane

Insulation

Supporting structure

5



Maximum sheet size: 1250 x 6000mm

In QUARTZ-ZINC and PIGMENTO finishes

Maximum sheet size: 1000 x 6000mm

In ANTHRA-ZINC finish

6

1

2

34

5

6

33

VMZ composite

Facade

Facade

Overview VMZ Composite material consists of two layers of 0.5mm thickpre-weathered zinc and a fire rated 3mm polyethylene core. The material is available in QUARTZ-ZINC, ANTHRA-ZINC and the 5 PIGMENTO colours. The stiffness of VMZ Composite allows verylarge and exceptionally flat panels to be manufactured andinstalled. However the nature of composite material also allows itto be folded into complex and yet rigid shapes. Standard panelscan be up to 3900mm x 900mm in size, however it is possible toextend this to 5900mm and 1100mm. It should be noted that1100mm wide panels are only available in QUARTZ-ZINC.

VMZ Composite is always installed using the rainscreen principalwith a vented air space of at least 38mm between the back of thepanels and the insulation or solid structure. Panels can be installedboth horizontally as well as vertically. The panels can also be fixedwith visible fasteners or using a cassette system with hidden fixings.VMZINC Composite can also be fixed using a structural bond (verticalpanels only) thus providing another secret fix option.

34

Facade

VMZ composite

Facade

The system is lightweight as the panelsweigh no more than 13kg/m2 and aregenerally fixed to aluminium cladding railswith a thickness of at least 2mm. The zonebehind the panels must be vented and atleast 38mm deep.

The panels are installed on cladding rails.The exact dimensioning of the rails andbrackets will depend on loadings and panelorientation. Vertical panels are generallyinstalled using a hook and pin principalwhereas horizontal panels rely on acontinuous rail. Depending on the systemused, individual panels may be independ-ently removable. Standard panel installa-tion is bottom up with the standard jointwidth being 20mm.

The panels should be installed with theprotective film in place.

VMZINC PLUS must be used on all non-vertical flashings if open gap soft boardsare not being used.

Structure

Installation

Composite panel construction

0.5mm zinc sheet

FR polyethylene layer

0.5mm zinc sheet

35

Facade

VMZ composite

Facade

Verticalsection

Horizontalsection

VMZINC Compositematerial

Nvelope fixing bracket

Stainless steel fixing

Cassette vertical support rail

Hook plate

PVC anti-rattle clip

Alignment gasket

Self drilling stainlesssteel screw 4.8 x 19

External insulation

Ventilated cavity

Thermal break


1

2

3

4

5

6



7

1

2

3

6

7

1

3

5

6 7

8

5

4

1

4

8

9

10

11

12

8

9 10

11

12

8

9

10

1112

3

VMZINC Compositematerial

Nvelope fixing bracket

Stainless steel fixing

Cassette vertical support rail

Hook plate

PVC anti-rattle clip

Alignment gasket

Self drilling stainlesssteel screw 4.8 x 19

External insulation

Ventilated cavity

Thermal break


1

2

3

4

5

6

7

8

9

10

11

12

5

1

8

8

6

2

5

8

7 6

UK fabricators can offer acomplete facade systemin VMZ Composite

36 Facade

Facade

Mozaik

Typical Mosaik cassette

systemconstruction

Advantages of a typical

Mosaik cassettesystem

n Wide range of panel sizes and depths


n All finishes available

n Bespoke perforation possible

1

2

3

4

VMZINC Mozaik cassette panels


VMZINC Membrane

Insulation


1

2

3

4

5

1



2

1

3

4

5


Facade

37Facade

Mozaik

Overview Mozaik is a rainscreen cassette system thatis available in all finishes of 1mm thickVMZINC and can be installed both verticallyand horizontally. The maximum panel sizeis 2400mm x 600mm and panels can havea depth of 40, 60, 80 or 100mm. Verticaland horizontal joints are 15mm. Timberbattens can be used to support the panelsbut metal rails are more commonly used(2mm aluminium or 1.5mm galvanisedsteel). Centre to centre spacing of the railsis typically 600mm but can vary dependingon the loading requirements of the facadein question.

Customised panels

38

Facade

Facade

Perforatedpanels

Almost all VMZINC rainscreen facade panels can be perforated.This can vary from standard perforations to custom perforationscreating various patterns, even images and logos.

39

Customised panels

Facade

Facade

PerforatedQUARTZ-ZINC

Perforated VMZ Compositein QUARTZ-ZINC

40 Facade

Facade

Customised panelsCurved VMZ

Composite inPIGMENTO Green

Custom-formed VMZ Compositein QUARTZ-ZINC

Facade

41Facade

Customised panelsCurved

interlockingpanels in

ANTHRA-ZINC,QUARTZ-ZINC andNatural VMZINC

Custom-stampedNatural VMZINCstanding seam

roofing and wallcladding panels

42

Facade

Further technical information

Facade

Zinc aesthetics Zinc is a material that requires almost no maintenance as the rinsingeffect of rainwater performs this task naturally. However when zinc isused on a non rinsed surface such as a protected facade or soffit it ispossible that the zinc may exhibit some superficial stains. These stainswill not affect the integrity of the zinc itself. It is for this reason that thevery dark grey ANTHRA-ZINC should be carefully considered beforebeing designed on a non rinsed facade or soffit. In marine locationsthe risk of superficial staining in these areas increases. Whilst stains arepossible on QUARTZ-ZINC and the PIGMENTO range the visual effect isgreatly reduced and therefore these finishes may be more appropriatefor some specific locations, however in a severe non-rinsed marineenvironment (1km from the sea), staining is still possible and thereforePIGMENTO should not be used in this application.

Zinc can be installed adjacent to limestone. The run off fromlimestone onto zinc material is acceptable. However, limestone dustand gypsum dust generated during cutting operations can react withzinc in the presence of water and form a superficial layer of whiterust. No dust should be in contact with unprotected zinc. To preventwhite rust, good construction practices should be used to limit theamount of dust that comes in contact with the zinc.

VMZINC manufacturing uses a colour management system basedon the Y-Factor. The Y-factor ranges from 0 to 100: 0 is black and100 is white. The range for ANTHRA-ZINC is 5 to 7 and the rangefor QUARTZ-ZINC is 22 to 25. Variations are possible within thisrange when different production batches are used.

All VMZINC facade systems are supplied with a protective film. Werecommend that the film be left on the panels during installation.The film should only be removed when other trades are no longerworking in the vicinity of the completed zinc facade. The filmmust not be partially removed as this will lead to unsightly stains.Panels adjacent to one another must not be left with one filmedand the other unfilmed. The zinc facade panels should bedelivered to site with the film completely covering panel faces butnot so as to obstruct film removal in joints. The protective film canleft on the panels for up to 2 months after panel installation.

VMZINC Membrane is a breather layer that allows water vapour topass through it but is water proof to liquid water (up to a columnof 2m). VMZINC Membrane should be used to protect the internalleaf of the rainscreen wall which is often the insulation.

Whilst zinc has a fire performance rating ‘AA’ - BS 476: Part 3 (`lowvulnerability` class in Scotland) and has a fire classification of A1 or A2-s1,d0 when used on a vented wall it may be necessary to addressfire risks created by the vented cavity. This can be dealt with bycreating flashings that compartmentalise the vented cavity or by usingintumescent fire barriers that maintain the ventilated cavity in normalconditions, leaving the 38mm continuous free air space, but, in theevent of fire, the intumescent ventilated fire barriers quickly expand toseal off the cavity to prevent fire spread. Not all fire retardantmaterials are compatible with zinc, therefore please contact us shouldyou require project-specific information.

Compatible contact products

Metals

Lead

Aluminium (painted, anodised or bare)

Galvanised steel

Stainless steel

Woods

Pine

Spruce

Scots pine

Poplar

Miscellaneous materials

Polyurethane

Non-acetic silicones

MS polymer mastics

Organic timber treatments

Incompatible contact products & run-off*Metals

Copper

Steel (non-galvanised)

Gypsum dust/limestone dust

Woods

Larch

Oak

Chestnut

Red cedar

Douglas fir

White cedar

All woods with a pH < 5

Miscellaneous materials

Mortar

Building paper

Bituminous membranes

Fire retardant & preservative treatments

Acidic cleaners (brick cleaner etc)

Acetic silicones

Metal salt timber treatments* This list is not exhaustive

VMZINC in relation to other materials

Protective film

VMZINCMembrane

Fire protection

43

Facade

Other VMZINC systems

Facade

VMZINC has been used as a roofing systemfor almost 200 years. The most commonsystem is standing seam roofing. However,for heritage projects, batten cap roofing is apopular option.

Roofing systems

VMZINC ornaments were first made by 19thcentury workshops in Paris. The traditioncontinues with VMZINC ornamentsfabricating both standard and bespokeornaments that are sent to all corners of theworld.

Ornaments

ROOFING

ORNAMENTS

RAINWATER SYSTEMS

Rainwatersystems

Whether for new build or refurbishment,VMZINC rainwater systems have beendesigned to complement a wide range ofbuilding materials and styles. Pre-weathered finishes offer exceptionalcolour stability while developing thenatural, self-protecting patina for whichzinc is renowned. This ensures thatmaintenance requirements will be minimalthroughout the systems’ design life andthat the material’s installed appearancewill be retained for many years.

SubjectThe subject of this document is intended for specifiers (building project architectsand design teams) and installers (specialist companies responsible for installationon the building site) of the designated product or system. Its purpose is to provide themain information, text and diagrams, relating to specification and installation. Any use or specification outside the area of use and/or specificationscontained in this brochure requires specific consultation with the VMZINC technical departments. This does not commit the latter to any responsibility withregard to the feasibility of the design or implementation of these projects.

Countries of applicationThis document applies exclusively to the specification and installation of thedesignated products or systems on building sites in the United Kingdom and theRepublic of Ireland.

Qualifications and reference documentsPlease note that the specification of all construction systems for a given buildingremains the exclusive responsibility of its design team, who must, in particular,ensure that the specified products are suitable for the purpose of the building andcompatible with the other products and techniques used. Please note that thecorrect use of this manual requires knowledge of VMZINC materials and of thezinc roofing and cladding profession. While construction is underway all standardsin force must be respected. Further installation information is available fromwww.vmzinc.co.uk or www.vmzinc.ie. Furthermore, VMZINC offers trainingcourses specifically for professionals.

ResponsibilityThe specification and installation of VMZINC products manufactured by VM Building Solutionsare the sole responsibility of the architects and building professionals who must ensure these products are used in a way suited to theend purpose of the construction and that they are compatible with other productsand techniques used. The specification and installation of the products implies respecting the standards in force and the manufacturer’s recommendations. Inthis regard, VM Building Solutions publishes and regularly updates specificationand installation manuals for specific geographic areas and provides trainingcourses. All the information on the latter can be obtained from the VMZINC team.Unless otherwise agreed in writing, VM Building Solutions cannot be held responsible for any damages resulting from a specification or installation thatdoes not respect all of VM Building Solutions specifications and the above standards and practices.

VM Building Solutions UKCollier House,Mead Lane,Hertford, Herts, SG13 7AX

Tel 01992 822 288Fax 01992 584 460Web www.vmzinc.co.ukWeb www.vmzinc.ie

Facades - VMZinc€¦ · All VMZINC facade systems can be used for new build and refurbishment...

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Transcript of Facades - VMZinc€¦ · All VMZINC facade systems can be used for new build and refurbishment...