Reroofing shall not be required to meet the minimum design slope requirement of 12 in section 1507 of the florida building code building for roofs that provide positive roof drainage high velocity hurricane zones shall comply with sections 1515 2 2 1 and 1515 2 2 2 of the florida building code building.
1 8 roof terrace pitch florida.
The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run.
The calculator above can handle much of this math.
Measure with a speed square.
As stated in the 2006 ibc roofs must serve to protect the building this requires roofs to resist high and low.
This means for every 12 horizontal units the roof must rise a minimum of one fourth vertical unit.
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.
For roof slopes from two units vertical in 12 units horizontal 2 12 up to four units vertical in 12 units horizontal 4 12 double underlayment application is required in accordance with section r905 2 7.
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.
However you can only use this pitch with built up roofing or specialized synthetic roofing.
To acting as a structural diaphragm in certain situations.
You can go by the measurements taken by walking the roof.
1518 8 4 all tile systems.
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.
1518 8 3 all roof tile fasteners shall be tested and comply with the requirements set forth in section 1523.
611 1 1 not more than.
Where the roof sheathing is less than 3 4 inch.
The pitch of this roof is 4 8 12.
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.
Uring storm events a roof is expected to perform many functions from preventing water intrusion.
A speed square and level can be used to easily find the pitch of a roof.
Since this is a flat roof or nearly flat roof.