Determine the minimum slope of the roof based on the roofing material.
San jose minimum roof slope.
Building has a complying radiant barrier installed throughout the roof attic area.
The drip edge shall be mechanically fastened to the roof deck at a maximum of 12 inches with approved fasteners.
The drip edge shall extend inch below the roof sheathing and a minimum of 2 inches up the roof deck.
That works out to about nine degrees if that works better for you.
Adjacent pieces of the drip edge shall be overlapped a minimum of 2 inches.
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The minimum pitch for shingles is 1 6 which is equivalent to 4 inches rise to 24 inches run.
Provide a drip edge at eaves and gables of asphalt shingle roofs.
The roof has a steep slope where rise to run ratio is greater than 2 12.
Show and specify that the finish grade around the structure shall slope away from the foundation at a minimum of 5 for at least 10 feet from the structure.
The underlayment shall be installed over the drip edge along the eaves and under the drip edge at gables rake edges.
Minimum roof covering classification page 4 city of san diego information bulletin 123 january 2020 documents referenced in this information bulletin.
The minimum requirement is 2 12.
Lap sealants shall be applied in accordance with the approved manufacturer s installation instructions.
The minimum slope for lapped nonsoldered seam metal roofs with applied lap sealant shall be one half unit vertical in 12 units horizontal 4 percent slope.
What is the minimum slope for an asphalt shingle roof.
Shingles of all types need to have a slope to function properly.
The minimum slope for standing seam roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope.
The 2 12 number is rise over run or two units of vertical for every 12 units horizontal.
Regardless of the complying energy method selected above a cf 2r must be completed and provided to the inspector.
The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope.
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