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MIL-HDBK-1001/5A
Table 3
Fasteners for Steep Roofing
ROOF MATERIAL
FASTENER REQUIREMENTS
Asphalt Roll Roofing
No. 11 or 12 gauge hot dipped galvanized
3/8-inch (10-millimeters) minimum heads,
shank length long enough to penetrate
through the roofing and deck or at least
3/4 inch (19 millimeters) into a plywood or
lumber deck.
Clay or Concrete Tile
No. 11; galvanized, yellow metal or
stainless steel, shanks to penetrate
minimum 3/4 inch (19 millimeters) into
sheathing or through it.
Asphalt Shingles
No. 11 or 12 gauge, hot-dipped galvanized,
3/8-inch (10-millimeter) minimum heads,
with shank length long enough to penetrate
through the roofing and through a wood
panel deck or at least 3/4 inch (19
millimeters) into a lumber deck.
Wood Shakes, Shingles
Rust-resistant, galvanized or aluminum
nails, l4 gauge, 3d x 1-1/4 inch (32
millimeters) long for 16-inch (406-
millimeters) and 18-inch (457-millimeter)
shingles or shakes; 14 gauge, 4d x 1-1/2
inch (38 millimeter) long for 24-inch (610-
millimeter) shingles or shakes.
Slate
Copper slating nails only.  3d up to 18-
inch (457-millimeter) long slates, 4d for
18-inche (457 millimeters) and longer
slates, 6d nails at hips and ridges.
Minimum length = 2 x slate thickness + 1
(e.g., 1-1/2 inch (38 millimeter) minimum
length for 1/4-inch (6-millimeter) slate).
NOTE:
"Hot" roofs in cold regions should slope 4 inches per foot
(33 percent) or more (with backnailing) and have eave
overhangs of less than 12 inches (305 millimeters) to
minimize ice dam problems.
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