E: info@deltapanels.com      Head Office: 731 Boundary Road, Richlands, Qld 4077    +61 7 3271 2170
 W: www.deltapanels.com     Sydney Depot:  11 The Old Northern Road, Narellan, NSW 2567   +61 2 4611 7712
ABN: 11 147 861 292
Version Date: 
2025-11-25
23
STEP 3        SELECT THE STYLE OF ROOF SHEETING
Step 3.2       Insulated Spans
SINGLE-SPAN NON-CYCLONIC SPAN TABLE
Wind
Category
Panel
Thickness
TYPE 1
TYPE 2
TYPE 3
TYPE 4
(3 or more  
sides open)
(2 sides open)
(1 side open)
(Fully enclosed)
N1/N2
(W28 /W33)
50mm
7290
5570
4160
5200
75mm
7380
5630
4190
5250
100mm
7500
6860
4900
6330
125mm
8250
7320
5320
6780
150mm
9000
7780
5740
7230
N3
(W41)
50mm
5220
4040
3040
3780
75mm
5270
4070
3060
3810
100mm
6360
4740
3430
4390
125mm
6810
5150
3790
4790
150mm
7270
5570
4150
5190
N4
(W50)
50mm
3920
3060
2320
2870
75mm
3960
3080
2330
2880
100mm
4590
3450
2510
3200
125mm
5000
3810
2820
3550
150mm
5410
4170
3130
3900
N5
(W60)
50mm
3000
2350
1780
2200
75mm
3020
2360
1790
2210
100mm
3370
2540
1860
2360
125mm
3730
2850
2120
2660
150mm
4090
3170
2380
2960
Maximum Overhang (each end)
25% of the back span (i.e. the distance between the last two fixing points)
Maximun Span in a Bushfire Zone
1500mm based on the CSIRO Test FSZ2411 & CSIRO FCO-3545 Report
-TPC
-TPC

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