Home > BlueScope Lysaght > Ceiling Battens

Lysaght Topspan® 40 Schematic LYSAGHT TOPSPAN® 40 battens are manufactured from BlueScope ZINCALUME® steel complying with AS1397-G550-AZ150 (550MPa minimum yield strength, 150g/m2 minimum coating mass) Thickness (BMT) 0.55 Yield strength (MPa) 550 Coating Mass (g/m2) 150 Mass (kg/m)  0.62 Spanning Tables Allowable Batten Spacing In Non-Cyclonic Areas Notes: These tables are based on a general design approach. The tables will give a practical and economic solution for most domestic buildings in non-cyclonic areas. For specific design situations, information on fastener and batten capacity may be obtained from our Technical Advisory Service on 1800 641 417. The design pressures have been determined from AS1170 Part 2, 1989, Section 3, for buildings up to 6 metres high with pressure coefficients of +0.2 internally and –0.9 externally with a local pressure factor of 1.5. Fastener selection for sheet roof: For pine 2 off 12 – 11 x 40 Type 17 per joint W28 – minimum Truss chord material 1.0 BMT: 2 off 10 – 16 x 16* W33 minimum Truss chord material 1.0 BMT: 2 off 10 – 16 x 16* W41 – minimum Truss chord material 1.0 BMT: 2 off 10 – 16 x 16* W50 minimum Truss chord material 1.2 BMT: 2 off 12 - 14 x 20* W60 – minimum Truss chord material 1.2 BMT: 2 off 12 – 14 x 20* W70 minimum Truss chord material 1.6 BMT: 2 off 12 – 14 x 20*                 * Hex. Self-drilling screws Fastener selection for tile roofing: 1 off 10 – 16 x 16 Hex. Self drilling screws per joint alternating top and bottom. Use 2 per joint at free ends. Fastener selection for cladding: 12 gauge Type 17 or 12 – 11 reduced drill point as per standard recommendations. The maximum batten span is 1200 mm for sheet or tile roofing. Roof truss design may be based on a maximum batten spacing. The designer / fabricator should be contacted for this information. LYSAGHT® truss designs have 1200 mm maximum batten spacing. Batten overhang using TOPSPAN® 40 should not exceed 300 mm without engineering approval. The tables have been determined based on the following assumptions: the batten is continuous over at least 3 spans; all trusses are uniformly spaced; fastener pullout loads determined for batten to Z chord connection For sheet roofing applications, batten connections to the chord of the first truss in from the gable end will require strapping if the batten spacing is less than 2366 mm and the truss spacing is 450 mm. Strapping shall be 1.0 x 25mm fastened to the web of the truss chord with 2 off 10 – 16 x 16 Hex. Self-drilling screws.   DESIGN WIND SPEED W28 W33 W41 ROOF CLADDING BMT (mm) Span Type Truss Spacing Truss Spacing Truss Spacing 600 900 1200 600 900 1200 600 900 1200 LYSAGHT CUSTOM ORB® 0.42 END 900 900 900 900 900 900 900 900 900 INT 1200 1200 1200 1200 1200 1200 1200 1200 1000 0.48 END 1200* 1200* 1200* 1200* 1200* 1200* 1200* 1200* 1000* INT 1600* 1600* 1600* 1600* 1600* 1540* 1600* 1330* 1000* LYSAGHT CUSTOM BLUE ORB® 0.60 END 900 900 900 900 900 900 900 900 900 INT 1200 1200 1200 1200 1200 1200 1200 1200 1000 0.80 END 1800* 1800* 1800* 1800* 1800* 1540* 1800 1330* 1000* INT 2400* 2400* 2150* 2400* 2060* 1540* 2000* 1330* 1000* LYSAGHT TRIMDEK® 0.42 END 1000 1000 1000 1000 1000 1000 1000 1000 1000 INT 1700 1700 1700 1700 1700 1540 1700 1330 1000 0.48 END 1700 1700 1700 1700 1700 1540 1675 1330 1000 INT 2300 2300 2150 2300 2060 1540 2000 1330 1000 LYSAGHT SPANDEK® 0.42 END 1500 1500 1500 1500 1500 1500 1500 1330 1000 INT 2100 2100 2100 2100 2060 1540 2000 1330 1000 0.48 END 1950 1950 1950 1950 1950 1540 1940# 1330 1000 INT 2800 2800 2150 2800 2060 1540 2000 1330 1000 LYSAGHT KLIP-LOK® 0.42 END 1200 1200 1200 1200 1200 1200 1200 1200 1000 INT 1300 1300 1300 1300 1300 1300 1300 1300 1000 0.48 END 1800 1800 1800 1800 1800 1540 1800 1330 1000 INT 2100 2100 2100 2100 2060 1540 2000 1330 1000 0.60 END 2300 2300 2150 2300 2060 1540 2000 1330 1000 INT 2700 2700 2150 2700 2060 1540 2000 1330 1000 LYSAGHT KLIP-LOK® 700 0.42 END 1100 1100 1100 1100 1100 1100 N.R. N.R. N.R. INT 1300 1300 1300 1300 1300 1300 N.R. N.R. N.R. 0.48 END 1800 1800 1800 1800 1800 1540 1800 1330 1000 INT 2100 2100 2100 2100 2060 1540 2000 1330 1000 Notes: END = End Span INT = Internal Span * 5 fasteners per sheet # 4 fasteners per sheet N.R. Not Recommended Capacity & Load Tables Maximum Safe Loads (kN/m) Span Single Span Double Span Continuous Span (mm) Wi Wo Wd Wi Wo Wd Wi Wo Wd 600 5.73 4.16 4.70 5.73 4.16 11.34 6.51 3.78 6.51 900 2.54 2.54 1.39 2.54 2.54 3.36 2.89 2.52 2.89 1200 1.43 1.43 0.58 1.43 1.43 1.42 1.62 1.62 1.62 1500 0.92 0.92 0.30 0.92 0.92 0.72 1.04 1.04 1.04 1800 0.64 0.64 0.17 0.64 0.64 0.42 0.72 0.72 0.72 2100 0.47 0.47 0.11 0.47 0.47 0.26 0.53 0.53 0.53 2400 0.35 0.35 0.07 0.35 0.35 0.18 0.40 0.40 0.40 Notes: Wi = Maximum Allowable Inward Load Wo = Maximum Allowable Outward Load Wd = Load to cause Span/300 deflection Two (2) fasteners at the supports  - No.12-14x20 Tek Hex Head Screws Minimum support thickness of 1.0mm BMT Loads are in kN/m Maximum span for roof batten or purlin is 1200mm (limited by 1.1kN point load). Section Properties Product Thickness (BMT mm) Area (mm2) Section Modulus (mm3) Second Moment of Area (103mm4) Zx Zy Ix Iy LYSAGHT TOPSPAN® 40 0.55 83 969 1080 20.6 39.7 0.75 113 1320 1475 28.1 54.1 Please note that the section modulus and secnd moment of area are both calculated about the principal axes. For further information please download Lysaght's Topspan 40 Product Brochure. It is available from below in a PDF format. Topspan 40 Product Brochure (737kb)