Install LYSAGHT CUSTOM BLUE ORB® cladding

This page contains basic instructions for the installation of LYSAGHT CUSTOM BLUE ORB® Sheeting. For more information see Install LYSAGHT® Steel Roofing & Walling

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

Fastening sheets to supports

LYSAGHT CUSTOM BLUE ORB® (and CUSTOM ORB®) is pierce fixed to timber or steel supports. This means the fastener screws pass through the sheeting.

You can place screws through the crests or in the valleys. To maximise watertightness, always place roof screws through the crests. For walling you may use either crest or valley fixing.

Always drive the screws perpendicular to the sheeting, and in the centre of the corrugation or rib.

Don't place fasteners less than 25 mm from the ends of sheets.

	Fixing to Steel up to 0.75 mm BMT	Fixing to Steel 0.75 to 3 mm BMT	Fixing to Timber
Crest Fixed	Self drilling self tapping screws 13-13 x 41 OR Self drilling self tapping screws with hex. washer-head EPDM seal & shankguard 12-11 x 40	Self drilling self tapping screws with hex. washer-head EPDM seal & shankguard 12-14 x 35	Self drilling self tapping screws with hex. washer-head; & EPDM seal SOFTWOOD: 12-11 x 50 with Higrip & shankguard HARDWOOD: 12-11 x 40 with shankguard
Valley Fixed	Self drilling self tapping screws with hex. washer-head & EPDM seal 10-16 x 16 OR Self drilling self tapping screws with hex. washer-head & EPDM seal 10-12 x 20	Self drilling self tapping screws with hex. washer-head & EPDM seal 10-16 x 16	Self drilling self tapping screws for wood with hex. washer-head & EPDM seal SOFTWOOD: 10-12 x 30 HARDWOOD: 10-12 x 20
Side lap & accessories	Self drilling needle point stitching screws with hex. slot-head & EPDM seal: 8-15 x 15 OR Self drilling screws with hex. washer-head & EPDM seal: 10-16 x 16 OR Sealed blind rivets: 4.8 mm diameter aluminium

Side Laps

LYSAGHT CUSTOM BLUE ORB® is overlapped at the sides not less than 1.5 corrugations. It is generally considered good practise to use fasteners along side laps however, when cladding is supported as indicated in Maximum Suport Spacings, side lap fasteners are not usually needed for strength.

End Lapping

End laps are not usually necessary because LYSAGHT CUSTOM BLUE ORB® is available in long lengths.

If you want end laps, please Contact Us for the sequence of laying and the amount of overlap.

If you intend to end lap LYSAGHT CUSTOM ORB® and LYSAGHT CUSTOM BLUE ORB®, order the sheets at the same time and tell us you intend to lap them, to ensure a good fit of the profiles.

Ends of Sheets

It is usual to allow roof sheets to overlap into gutters by about 50 mm. The valleys of sheets should be turned down at lower ends and turned up at upper ends.

Laying Procedure

For maximum weather tightness, start laying sheets from the end of the building that will be in the lee of the worst anticipated or prevailing weather.

It is much easier and safer to turn sheets on the ground than up on the roof. Before lifting sheets on to 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 midspan of roof members.

To align the first bullnosed sheet use a level on the gutter end.

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 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 when 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.