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08-7199
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08-7199
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Last modified
3/6/2009 4:48:24 PM
Creation date
5/7/2008 9:58:14 AM
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Building Department
Building Department - Doc Type
Permit
Permit #
08-7199
Building Department - Name
FLINK,GARRISON
Address
5832 12TH ST
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<br />, ROOF-CEIUNG CONSTRUCTION <br /> <br /> DEAD LOAD = 10 pst DEAD LOAD = 20 pst <br /> 2x4 2x6 2x8 2 x 10 2 x 12 2x4 2x6 2x8 2 x 10 2 x 12 <br />RAFTER Maximum rafter spans" <br />SPACING (feet - (feet - (feet - (feet - (feet - (feet - (feet - (feet - (feet - (feet - <br />(Inches) SPECIES AND GRADE Inches) Inches) inches) inches) Inches) inches) inches) Inches) Inches) Inches) <br /> Douglas fir-larch SS 8-3 13-0 17-2 21-10 Note b 8-3 13-0 16-7 20-3 23-5 <br /> Douglas fir-larch #1 8-0 12-6 15-10 19-5 22-6 7-5 10-10 13-9 16-9 19-6 <br /> Douglas fir-larch #2 7-10 11-9 14-10 18-2 21-0 6-11 10-2 12-10 15-8 18-3 <br /> Douglas fir-larch #3 6-1 8-10 11-3 13-8 15-11 5-3 7-8 9-9 11-10 13-9 <br /> Hem-fir SS 7-10 12-3 16-2 20-8 25-1 7-10 12-3 16-2 19-10 23-0 <br /> Hem-fir #1 7-8 12-0 15-6 18-11 21-11 7-3 10-7 13-5 16-4 19-0 <br /> Hem-fir #2 7-3 11-5 14-8 17-10 20-9 6-10 10-0 12-8 15-6 17-11 <br />24 Hem-fir #3 6-1 8-10 11-3 13-8 15-11 5-3 7-8 9-9 11-10 13-9 <br />Southern pine SS 8-1 12-9 16-10 21-6 Note b 8-1 12-9 16-10 21-6 Note b <br /> Southern pine #1 8-0 12-6 16-6 21-1 25-2 8-0 12-3 15-4 18-3 21-9 <br /> Southern pine #2 7-10 12-3 15-10 18-11 22-2 7-5 10-8 13-9 16-5 19-3 <br /> Southern pine #3 6-5 9-6 12-1 14-4 17-1 5-7 8-3 10-6 12-5 14-9 <br /> Spruce-pine- fir SS 7-8 12-0 15-10 20-2 24-7 7-8 12-0 15-4 18-9 21-9 <br /> Spruce-pine-fir #1 7-6 11-9 14-10 18-2 21-0 6-11 10-2 12-10 15-8 18-3 <br /> Spruce-pine-fir #2 7-6 11-9 14-10 18-2 21-0 6-11 10-2 12-10 15-8 18-3 <br /> Spruce-pine-fir #3 6-1 8-10 11-3 13-8 15-11 5-3 7-8 9-9 11-10 13-9 <br /> <br />TABLE R802.5.1 (2)-continued <br />RAFTER SPANS FOR COMMON LUMBER SPECIES <br />(Roof live 1oad=20 pst, ceiling attached to rafters, UL1 = 240) <br /> <br />Check sources for availability of lumber in lengths greater than 20 feet. <br />For SI: I inch = 25.4 mm, I foot = 304.8 mm, I pound per square foot = 0.0479 kN/m2. <br />a. The tabulated rafter spans assume that ceilingjoists are located at the bottom of the attic space or that some other method of resisting the outward push of the rafters <br />on the bearing walls, such as rafter ties, is provided at that location. When ceiling joists or rafter ties are located higher in the attic space, the rafter spans shall be <br />multiplied by the factors given below: <br /> <br />Hc.HR <br />2/3 or greater <br />1/2 <br />1/3 <br />1/4 <br />1/5 <br />1/6 <br />In.5 and less <br /> <br />Rafter Span Adjustment FactDr <br />0.50 <br />0.58 <br />0.67 <br />0.76 <br />0.83 <br />0.90 <br />1.00 <br /> <br />where: He = Height of ceiling joists or rafter ties measured vertically above the top of the rafter support walls. <br />HR = Height of roof ridge measured vertically above the top of the rafter support walls. <br />b. Sparl exceeds 26 feet in length. <br /> <br />8.10 <br /> <br />FLORIDA BUILDING CODE - RESIDENTIAL <br />
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