What i see here is that the extra precaution required for the minimum 2 12 roof slope was applied to a lower 1 12 roof slope.
1 8 roof terrace pitch florida.
611 1 1 not more than.
Where the roof sheathing is less than 3 4 inch.
The calculator above can handle much of this math.
Minimum roof slope roof pitch r905 15 1 liquid applied roofing must have a design roof slope of 1 4 12 or greater 2 slope.
This means for every 12 horizontal units the roof must rise a minimum of one fourth vertical unit.
To acting as a structural diaphragm in certain situations.
1518 8 3 all roof tile fasteners shall be tested and comply with the requirements set forth in section 1523.
Since this is a flat roof or nearly flat roof.
The pitch of this roof is 4 8 12.
A speed square and level can be used to easily find the pitch of a roof.
1518 8 4 all tile systems.
0 pitch 1 00x the roof area.
Uring storm events a roof is expected to perform many functions from preventing water intrusion.
You can go by the measurements taken by walking the roof.
1518 8 2 the roof tile product approval shall specify the slope requirement for each tile and underlayment system in accordance with table 1515 2.
Measure with a speed square.
Fasteners for asphalt shingles shall be galvanized steel stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 3 mm shank with a minimum 3 8 inch diameter 9 5 mm head complying with astm f1667 of a length to penetrate through the roofing materials and not less than 3 4 inch 19 1 mm into the roof sheathing.
1 pitch 1 01 2 pitch 1 02 3 pitch 1 03 4 pitch 1 05 5 pitch 1 085 6 pitch 1 12 7 pitch 1 16 8 pitch 1 21 9 pitch 1 25 10 pitch 1 31 11 pitch 1 36 12 pitch 1 42.
The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run.
Set the level on the edge of the speed square as shown below then place the heel of the speed square on a rafter or gable edge of the roof.
As stated in the 2006 ibc roofs must serve to protect the building this requires roofs to resist high and low.