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SmartLVL 15 Design Guide - Tilling Timber

SmartLVL 15 Design Guide - Tilling Timber

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HIP RAFTER - SHEET AND TILE ROOFAS 4055 WIND CLASSIFICATION N1, N2, N3, C1, C2 & C3RafterHip RafterSpan (Actual Length)Overhang(Actual Length)FaciaEXAMPLE:wind speed = N3roof load = 40 kg/m 2 (sheet roof)hip rafter span = 4500 mm (single span)rafter spacing = 600 mmEnter column at (N1,N2 & N3) wind speed, 600 mm rafter spacingand read down to span equal to or greater than 4500 mm for a 40kg/m 2 roof loadNOTES:RafterSpacingHIP RAFTER<strong>SmartLVL</strong> <strong>15</strong> <strong>Design</strong> <strong>Guide</strong> 63ADOPT: <strong>SmartLVL</strong> <strong>15</strong> — 240x42AS 4055 wind category N1 - N3 C1 - C3Maximum Rafter spacing (mm) 600 1200 600 1200Member size Roof mass (kg/m 2 Maximum hip rafter and overhang span - single span (mm))span O/H span O/H span O/H span O/H130x42 40 3100 650 3100 650 3100 450 3100 50090 2600 700 2600 700 2600 500 2600 500140x42 40 3300 650 3300 650 3300 500 3300 50090 2700 700 2700 700 2700 500 2700 500<strong>15</strong>0x42 40 3500 700 3500 700 3500 500 3500 50090 2900 750 2900 750 2900 500 2900 550170x42 40 3900 750 3900 750 3800 550 3800 55090 3200 800 3200 800 3200 550 3200 550190x42 40 4200 800 4200 800 4000 600 4000 60090 3400 850 3400 850 3400 600 3400 600200x42 40 4400 800 4400 800 4100 600 4100 60090 3600 850 3600 850 3600 600 3600 600240x42 40 5000 900 5000 900 4600 650 4600 65090 4100 950 4100 950 4100 650 4100 650290x42 40 5800 1000 5800 1000 5200 20 700 5200 20 70090 4700 1050 4700 1050 4700 85 750 4700 85 750300x42 40 5900 1000 5900 1000 5300 25 750 5300 25 75090 4900 1050 4900 1100 4900 95 750 4900 95 750360x42 40 6800 1100 6800 1100 5800 40 800 5800 40 80090 5600 1200 5600 1200 5600 145 850 5600 145 850400x42 40 7300 95 1<strong>15</strong>0 7300 1<strong>15</strong>0 6200 50 850 6200 50 85090 6000 180 1250 6000 180 1250 6000 170 900 6000 170 900130x58 40 3400 700 3400 700 3400 550 3400 55090 2800 750 2800 750 2800 550 2800 550<strong>15</strong>0x58 40 3800 750 3800 800 3800 550 3800 55090 3100 850 3100 850 3100 600 3100 600170x58 40 4200 850 4200 850 4200 600 4200 60090 3400 900 3400 900 3400 650 3400 650190x58 40 4500 900 4500 900 4500 650 4500 65090 3700 950 3700 950 3700 650 3700 650200x58 40 4700 900 4700 900 4600 650 4600 65090 3900 950 3900 950 3900 700 3900 700240x58 40 5400 1000 5400 1000 5200 750 5200 75090 4400 1050 4400 1050 4400 750 4400 750300x58 40 6400 1100 6400 1100 5900 800 5900 85090 5300 1200 5300 1200 5300 850 5300 850360x58 40 7300 1250 7300 1250 6500 30 900 6500 30 90090 6000 120 1300 6000 1350 6000 1<strong>15</strong> 950 6000 1<strong>15</strong> 950400x58 40 7900 1300 7900 1300 6900 45 950 6900 45 95090 6500 <strong>15</strong>0 1400 6500 1400 6500 140 1000 6500 140 1000450x58 40 8600 1400 8600 1400 7400 55 1000 7400 55 100090 7100 180 <strong>15</strong>00 7100 180 <strong>15</strong>00 7100 170 1050 7100 170 1050300x75 40 6700 1250 6800 1250 6400 10 900 6500 90090 5600 1300 5600 1300 5600 55 950 5600 950400x75 40 8300 1450 8400 1450 7500 35 1050 7600 35 105090 6900 125 <strong>15</strong>50 6900 <strong>15</strong>50 6900 120 1100 6900 120 1100525x75 40 10200 1<strong>15</strong> 1650 10200 1<strong>15</strong> 1650 8800 65 1200 8700 65 120090 8500 205 1750 8500 205 1800 8500 195 1250 8500 195 12501. D = member depth, B = member breadth, NS = not suitable.2. The above table was based on a batten spacing of 900 mm3. Minimum backspan = 200 % of overhang4. Maximum birdsmouth depth = 30 % of depth5. End bearing length = 35 at end supports. Subscript values indicate the minimum additional bearing length where required to be greater than 35mm at end support6. Construction loads shall not be applied to overhangs until a 190x19 mm (min) timber fascia or other fascia of equivalent stiffness is rigidly andpermanently attached to the end of rafter overhangs7. Not all sizes of <strong>SmartLVL</strong> <strong>15</strong> in this table are stocked in each state. (F17 sizes of 120, 140, 190 and 290 mm depths not currently stocked in

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