elZinc Rhomboid Tile Cladding
Verified by manufacturer 6 months ago
ISO 9001 Quality Management
Certificate type
ISO 45001 Health and Safety Management
Certificate type
A fully supported zinc cladding system composed of interlocking zinc tiles.
Application
- Wall cladding on flat and curved surfaces.
- Roofing - minimum pitch, consult elZinc.
Description
The Rhomboid Tile is used to form the weathering layer in a fully supported zinc facade or roof. The zinc tile can be cut, folded and edged just as in traditional zinc work, providing weather-tight joints at the zinc cladding's edges.
The tiles are made of elZinc titanium zinc, 0.65 or 0.7 mm thick rolled to EN 988 and ASTM B69-13. Centre to centre joint width is 235 mm. Cladding weight is 7.8 kg/m² with 0.7 mm thick tiles. The tiles are interlocked with each other and fixed directly to the wooden substrate (softwood boarding or plywood or OSB sheathing) using one stainless A2 grade fastener. For buildings that require a non-combustible substrate for the zinc, trapezoidal metal sheet panels are used as a substitute for the wooden sheathing/ boarding.
Facade application:
The cladding is normally rear-vented behind the supporting sheathing/boarding with a ventilating space of at least 38 mm. Over sheathing, a simple breather membrane is normally installed between the zinc and the substrate to act as a separating layer. Over boarding, no membrane is required.
Roofing application:
The roof is either ventilated with a ventilating space of between 50 and 100 mm (depending on rafter length) under the substrate or installed in an unventilated (warm) roof design which includes suitable methods for condensation control. A structural underlay (and draining membrane) is often required under the zinc to ensure air circulation to its underside.
Features and benefits:
- Traditional cladding system using interlocking panels.
- Principally used in facade cladding, on flat or curved areas.
- Weather-tight from 25º of pitch and above if used in roofing (consult with manufacturer for your project).
- Attractive design layouts complement different architectural styles.
General information
Color | Grey Guidance for specification option: Light grey, medium grey or dark grey. Red Blue Brown Gold |
Finish | Natural Pre-weathered |
Material | Titanium Zinc |
Shape | Rhombus |
Length | 560 mm |
Width | 280 mm |
Height | 5 mm |
Warranty description | 20 year Guidance for specification option: Rainbow range. Lifetime Guidance for specification option: Alkimi range. |
Uniclass | |
CAWS | H67/5 Metal roof tiling H67/130 Metal vertical tiling H67/110 Metal roof tiling H67/8 Metal vertical tiling H74/3 Zinc sheet fully supported roof covering H74/110 Zinc sheet fully supported roof covering H74/130 Zinc sheet fully supported wall covering |
Specification data - Zinc sheet fully supported wall-covering systems
System performance | Manufacturer guidanceelZinc Rhomboid tiles shall provide a weathertight wall cladding, able to freely expand and contract in response to temperature changes, and fitted to resist all loading including wind loads. The appearance of the cladding shall be one composed of flat panels, without oil canning, of straight joints and neat folds of flashing elements, correctly set out according to the architect’s drawings and design intent. |
Insulation | Manufacturer guidanceInsert requirement. A zinc façade does not place any special requirement on the insulation. |
Air and vapour control layer | Not required.Breather membrane.Guidance for specification option: Insert requirement. Manufacturer guidanceInsert requirement. |
Carrier | Soft wood battens.Guidance for specification option: With suitable wood preservative treatment, height 38 mm minimum or according to ventilating cavity depth. Use soft wood battens for open gap boarding, plywood or OSB sheathing. Metal rails.Guidance for specification option: Use metal rails for metal decks, insulated metal panels. Manufacturer guidanceInsert requirements. |
Substrate | Sheathing/ boarding.Guidance for specification option: Sheathing/ boarding laid flush, true and plumb, and its fasteners driven just below the surface. For buildings that require a non-combustible substrate for the zinc, trapezoidal metal sheet panels are used as a substitute for the wooden sheathing/ boarding. Ventilated plywood substrate, 18 mm.Guidance for specification option: Service class 2 according to EN636, and 'good one side'. Installed in a staggered layout, parallel to eaves, with a 3-5 mm gap between boards, all edges supported and fastener heads driven below surface. Ventilated galvanized steel metal deck, 0.7 mm.Guidance for specification option: 0.7 mm minimum. To give a minimum clip pull-out value of 560 N, installed 'façade side outwards' to give maximum support to the zinc trays, parallel to eaves, all ends supported. Open gap softwood boarding according to EN 12775-2, 18 mm.Guidance for specification option: Maximum moisture content 18% and compatible with zinc and treated with zinc-compatible wood preservatives, rough sawn, 18 mm thick minimum, 80 to 125 mm wide, fixed parallel to eaves with fastener heads driven just below surface. Foamglas insulating boards.Guidance for specification option: Installed according to manufacturer's instructions, providing a vapour-tight substrate. Manufacturer guidanceInsert details. |
Sheet underlay | |
Material | Not required.Guidance for specification option:
Structural underlay.Guidance for specification option: Open fibrous mat, 8 mm (over breather membrane, sd value of 0,04 m). Edges of breather lapped and taped.
Breather membrane.Guidance for specification option: Max sd value of 0.04 m. Edges lapped and taped.
|
Zinc sheet | 0.7 mm-thick elZinc® titanium zinc.Guidance for specification option: Consider using Protect+ back coating for unvented façades. Contact manufacturer for further guidance 0.8 mm-thick elZinc® titanium zinc.Guidance for specification option: Preferred for façades to keep oil canning to a minimum. Consider using Protect+ back coating for unvented façades. Contact manufacturer for further guidance Manufacturer guidanceRolled according to EN988 and ASTM B69-13. |
Vertical joints | |
Fasteners to substrate | A2 stainless steel annular ring shank clout nails, 3.35 x 25 mm.Guidance for specification option: Open gap boarding/wooden sheathing. A2 stainless steel wood screws - countersunk head, 4.5 x 25 mm.Guidance for specification option: Open gap boarding/wooden sheathing. A2 stainless steel pop rivet, 3.2 mm diameter.Guidance for specification option: Metal deck/insulated metal panel/ foamglass steel plates. A2 stainless steel self-tapping screw - flat head, 4.8 x 25 mm.Guidance for specification option: Metal deck/insulated metal panel/ foamglass steel plates. |
Head detail | |
Form | Front vented with zinc capping.Rear vented with zinc wall cladding.Unvented with zinc wall capping. |
Bottom edge detail | |
Form | T-plate starter flashing and cavity inlet at foot.Guidance for specification option: For vented façades. Starter T-plate.Guidance for specification option: For non-vented façades. |
Abutments | |
Fixing into joints and chases | |
Pointing to joints and chases | Zinc-compatible sealants. |
Execution | Manufacturer guidanceJoints shall set out according to architect’s drawings, or in their absence, according to the design intent of the project. The details of the zinc work should be carried out according recognized good practice and manufacturer’s recommendations. Respect minimum recommended interior radii while bending. Holes should be notched where required to prevent tears forming in the zinc. Marking out: Use a pencil, pen, crayon or chalk. After completion, no marking should be visible. Wherever possible use a mechanical folder to bend material to give straight and uniform folds. Free edges: If visible fold over to form a 15 mm hem. Ensure the temperature of the metal does not fall below 7, or 10°C, depending on the operation, when folding, profiling or forming the metal. Follow elZinc recommendations regarding warming up zinc metal prior to forming. |
Fixing | Tile direct fixed. Guidance for specification option: Tiles are direct fixed direct through the hole at the top corner of the shingle. The top fixing gives 14 fasteners/m². Depending on the pull-out value of the fastener, this should be enough for buildings in sheltered locations. Tile direct fixed plus one stainless steel clip per edge. Guidance for specification option: Clip spacing along the edges of the facade and at the corners may require using additional clips. For buildings located in exposed areas or over 8 m in height, or in regions exposed to tropical storms, specify one clip per edge. |
Colour/ Finish | elZinc Crystal®. elZinc Graphite®. elZinc Lava®. elZinc Natural. elZinc Oliva®. Manufacturer guidanceIf a backside coating is required, type 'Protect+' directly after the finish, eg. elZinc Graphite® Protect+. If an ‘Advance’ finish is required, type ‘Advance’ directly after the finish, eg. elZinc Slate Advance. |
Fire rating | A1. |
Co-efficient of linear thermal expansion | 0.000022/ºC. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Spain |
Country of product manufacture | Spain |
Recyclability | 100% Guidance for specification option: Fully recyclable. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 20 % Guidance for specification option: Approximate. |
Third party certifications
ISO 9001 Quality Management
ISO 9001
ISO 45001 Health and Safety Management
ISO45001
Literature
Architectural solutions in zinc
Explanatory leaflet elZinc Lifetime warranty
elZinc - The Material - General Considerations
elZinc Color Chart
elZinc LEED Certification