How To Install LYSAGHT SPANRIB® Cladding

This page contains basic instructions for the installation of roofing made from LYSAGHT SPANRIB®. For more information see Install LYSAGHT® Steel Roofing & Walling

Please be aware that installation of steel cladding must be carried out by licensed tradespeople in some Australian states.

Fixing sheets to supports

LYSAGHT SPANRIB® is pierce-fixed to steel supports. This means that fastener screws pass through the sheeting.

To achieve the unique watertightness of SPANRIB®, always place roof screws through the crests.

Always drive the screws perpendicular to the sheeting.

Do not place fasteners less than 25 mm from ends of sheets.

End Lapping

End-laps are not usually necessary because LYSAGHT SPANRIB® is available in long lengths.

If end-laps are used, complete each run of sheets from gutter to ridge, before placing the next run. For roofs, maximum and minimum end-laps are detailed at chapter 10 link.

Ends of Sheets

It is usual to allow roof sheets to overlap into gutters by about 50mm. For roof pitches less than 25°, the pans of sheets at gutter ends and ridge ends must be turned-down and turned-up respectively.

Lay sheets toward prevailing weather

It is much easier and safer to turn sheets on the ground than up on the roof. Before lifting sheets onto the roof, check that they are the correct way up and the overlapping side is towards the edge of the roof from which installation will start.

Place bundles of sheets over or near firm supports, not at mid span of roof members.

Adverse Conditions

If this product is to be used in marine, severe industrial or unusually corrosive environments, Contact Us.

Metal and Timber Compatibility

Lead, copper, free carbon, bare steel and green or some chemically-treated timber are not compatible with this product. Do not allow any contact of the product with those materials, nor discharge of rainwater from them onto the product. Supporting members should be coated to avoid problems with underside condensation. If there are any doubts about the compatibility of other products being used, Contact Us.

Maintenance

Optimum product life will be achieved if all external walls are washed regularly. Areas not cleaned by natural rainfall (such as the tops of walls sheltered by eaves) should be washed down every six months.

Storage and Handling

Keep the product dry and clear of the ground. If stacked or bundled product becomes wet for extended periods, separate it, wipe it with a clean cloth to dry thoroughly.

Handle materials carefully to avoid damage: don't drag materials over rough surfaces or over each other; don't drag tools over material; protect from swarf.

Cutting

For cutting thin metal on site, we recommend a circular saw with a metal-cutting blade because it produces fewer damaging hot metal particles and leaves less resultant burr than does a carborundum disc.

Cut materials over the ground and not over other materials.

Sweep all metallic swarf and other debris from roof areas and gutters at the end of each day and at the completion of the installation. Failure to do so can lead to surface staining where the metal particles rust.

Sealed Joints

For sealed joints, use screws or rivets and neutral-cure silicone sealant, branded as suitable for use with galvanised or ZINCALUME® steel.