How To Install LYSAGHT CUSTOM ORB® and CUSTOM BLUE ORB® Cladding
This page contains basic instructions for the installation of LYSAGHT CUSTOM ORB® & CUSTOM BLUE ORB® Sheeting. For more information see Install LYSAGHT® Steel Roofing & Walling or Download LYSAGHT CUSTOM ORB® and CUSTOM BLUE ORB® (1515 KB)
Fastening sheets to supports
LYSAGHT CUSTOM ORB® and CUSTOM BLUE ORB® are pierce-fixed to steel or timber supports.
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.
Always drive the screws perpendicular to the sheeting, and in the centre of the corrugation or rib.
Don't place fasteners without insulation less than 25 mm from the ends of sheets.
Fasteners Without Insulation
| Fix to Steel Single & lapped steel thickness >0.55 up to 1.0mm BMT |
Fix to Steel Single & lapped steel thickness >0.1 BMT up to 3.0mm BMT |
Fix to Steel Total lapped steel thickness of >1 BMT up to 3.8mm BMT |
Fix to Timber Hardwood J1-J3 |
Fix to Timber Soft J4 |
|
|---|---|---|---|---|---|
| Crest Fixed | RoofZips M6-11x50 |
12-14x35, metal Teks HG, HH or AutoTeks M5.5-14x39 |
12-14x35, Metal Teks HG, HH or AutoTeks M5.5-14x39 |
12-11x65, Type 17 HG, HH |
12-11x50, Type 17 HG, HH or RoofZips M6-11x50 HG, HH |
| Pan Fixed |
10-16x16, Metal Teks, HH or M5-16x25 Designer Head or RoofZips M6-11x25 |
10-16x16, metal Teks, HH or M5-16x25 Designer Head |
10-16x16, Metal Teks, HH | 10-12x25, Type 17, HH M5-16x25 Designer Head or 12-11x25, Type 17, HH |
10-12x30, Type 17, HH 12-11x25, Type 17, HH M5-16x25 Designer Head or RoofZips M6-11x25 |
| Side Laps | (If required) 10-16x16, Metal Teks, HH or RoofZips M6-11x25 or M5-16x25 Designer head or Sealed blind rivet 4.8mm diameter aluminium | ||||
Notes:
- For other steel thicknesses not specified please seek advice from screw manufacturer.
- Values given are: gauge/threads per inch/ lengths (mm). HH = Hex. Head, WH = Wafer Head, HG = Hi-Grip
- Care is required during installation to prevent stripping of thin material. (Single ply.)
- Screw specification as above or equivalent fastener.
- All screws with EPDM sealing washer.
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Side-laps
LYSAGHT CUSTOM ORB® and CUSTOM BLUE ORB® is overlapped at the sides not less than 1.5 corrugations. It is generally considered good practice to use fasteners along side-laps however, when cladding is supported as indicated in maximum support spacings, side-lap fasteners are not usually needed for strength.
End Lapping
End laps are not usually necessary because LYSAGHT CUSTOM ORB® and CUSTOM BLUE ORB® is available in long lengths. If you want end laps, Contact Us on the sequence of laying and the amount of overlap.
If you intend to end-lap LYSAGHT CUSTOM ORB® and 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.
Lay sheets toward prevailing weather. Also, 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 fir supports, not at mid span of roof members.
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.
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, bare steel and green or some chemically-treated timber are not compatible with this product; thus don't allow any contact of the product with those materials, nor discharge of rainwater from them onto the product. If there are any doubts about the compatibility of other products being used, Contact Us.
Storage and Handling
Handling Safety - LYSAGHT® product may be sharp and heavy. It is recommended that heavy-duty cut resistant gloves and appropriate manual handling techniques or a lifting plan be used when handling material. Keep the product dry and clear of the ground. If stacked or bundled product becomes wet, 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.
Swarf
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.
Maintenance
Optimum product life will be achieved if all external surfaces 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.
