STRAMIT XTRASPAN™ 900
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SELECTION & SPECIFICATION
FEATURES:
Extra wide Cover – fewer sheets, fewer side laps and quicker installation.
- Choice of Materials – aluminium, steel or hi-tensile steel to suit individual project requirements.
- Multi-Ribbed Profile – for performance and good looks.
- Through Fixing – for easy, quick installation and lower costs.
- Deep Ribs – for good performance and water carrying capacity.
- Low Roof Pitch – roof slopes down to 2° for economical structures.
APPLICATIONS:
The striking linearity, strength, wide cover, light weight and weather resistance of Stramit Xtraspan™ 900 cladding make it perfect for large commercial roofing and walling applications. Its strength and ease of assembly allow for long, economical spans. The good water-carrying capacity and weather-tightness permit very low roof pitches, leading to economies in the building structure. Stramit Xtraspan™ 900 cladding is available on a project basis only.
MATERIALS:
Stramit Xtraspan™ 900 cladding is manufactured from aluminium BlueScope Steel COLORBOND® XRW steel or BlueScope Steel ZINCALUME® steel. In some locations galvanised and Colorbond® Ultra steel as well as aluminium may be available by arrangement. Colorbond® XRW (and Ultra) is in accordance with AS2728 – Category 3 and, for the substrate, with AS1397. Zincalume® AZ150 and galvanised Z450 conform to AS1397.
Stramit is able to supply a comprehensive range of Colorbond® colours. Refer to the BlueScope Steel Colorbond® 18 colours chart available from Stramit, and ask your nearest Stramit location for colour availability.
| STRAMIT XTRASPAN™ 900 CLADDING - SHEET MASS (kg/m2 of roof area) |
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|---|---|---|---|
| thickness BMT | Zincalume® | Colorbond® | Aluminium |
 |
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| 0.42mm G550 | 4.62 | 4.69 | - |
| 0.48mm G300 | 5.98 | 6.05 | - |
| 0.70mm Aluminium | - | - | 2.51 |
| 0.90mm Aluminium | - | - | 3.23 |
|
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ADVERSE CONDITIONS:
Stramit Xtraspan™ 900 cladding will give excellent durability in almost all locations. It is however important to choose the correct coating for each application environment. The table below shows the suitability of coating types for different exposure conditions.
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| suitability of | site exposure condition | |||
|---|---|---|---|---|
|
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| material type | benign | moderate | severe | very severe |
|
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| Zincalume® AZ150 |  |
? | ? |  |
| Galvanised Z450 | |
? | |
|
| Colorbond® XRW | |
|
? | |
| Colorbond® Ultra | N/A | N/A | |
? |
| Aluminium | |
|
|
? |
|
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| ? Question marks indicate conditions where durability may be diminished, depending on the particular application. | ||||
The approximate site exposure conditions in the table above are explained below.
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| distance of site from | ||||
|---|---|---|---|---|
|
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| site exposure | rough | calm, still | industrial | fossil fuel |
| condition | active surf | salt water | emission | combustion |
|
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| benign | 1000m + | 100m + | 500m + | 500m + |
| moderate | 400m-1000m | 0-100m | 250m-500m | 250m-500m |
| severe | 100m-400m | N/A | 100m-250m | 100m-250m |
| very severe | 0-100m | N/A | 0-100m | 0-100m |
|
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| The suitability and exposure tables above are guidelines only, conditions will vary from site to site. If in any doubt about the choice of coating for a particular application contact your nearest Stramit office for advice. | ||||
COMPATIBILITY:
All building products need to be checked for compatibility with adjacent materials. These checks need to be for both direct contact between materials, and where water runs from one material to another. In particular:
-
For Zincalume, Colorbond XRW and galvanised roofs avoid copper, lead, green or treated timber, stainless steel and mortar or concrete.
-
In addition galvanised roofs should not receive drainage from aluminium or any inert materials, such as plastics, glass, glazed tiles, Colorbond and Zincalume.
TESTING:
Stramit has in-house, purpose built, testing equipment used to design, develop and improve products for the Australian market. In addition many Stramit products are tested or witnessed by independent organisations, including the Cyclone Structural Testing Station (James Cook University).
This ongoing research and development activity ensures that Stramit remains at the forefront of innovation, design and consumer information.
ARCHITECTURAL SPECIFICATION :
The roofing/walling shall be 0.42 (or 0.55) mm BMT Stramit Xtraspan™ 900 cladding, in continuous lengths with trapezoidal ribs 38mm high, spaced at 127mm centres. Sheeting material shall be protected steel sheet to AS1397 with a minimum yield stress of 550MPa (or G300) and an AZ150 zinc-aluminium coating with or without an oven baked paint film of selected colour (or selected aluminium). The sheeting shall be fixed to the purlins/girts in accordance with the manufacturer’s recommendations. Suitable fixing screws in accordance with Australian Standard AS3566, Class 3, shall be used at every support with side lap fasteners installed at mid span if required. Sheets shall be laid in such a manner that the approved side lap faces away from the prevailing weather. A minimum of 50mm shall be provided for projection into gutters. Flashings shall be supplied in compatible materials as specified, minimum cover of flashing shall be 150mm. All sheeting shall be fixed in a workman like manner, leaving the job clean and weathertight. Repair minor blemishes with touch-up paint supplied by the sheeting manufacturer. All debris (nuts, screws, cuttings, filings etc.) shall be cleaned off daily.
COMPANY DETAILS
Phone: 07 5439 0990
Fax: 07 5439 0770
Address:
26 Beerwah Parade
Beerwah, Sunshine Coast
QLD 4519, Australia
Postal Address:
PO BOX 147,
Mooloolaba, Sunshine Coast
QLD 4557, Australia
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NSW Lic: #187568C
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