Installation Instructions

StormMaster Slate General Instructions
Atlas Roofing
Placement of nails is critical to overall performance. High nail placement will result in loose shingles
after application. All nails must be driven straight with the heads flush to the shingle surface, never
cutting into the shingle. Nails must not be exposed (visible) on the finished roof. Loss of shingles
due to improper nailing does not justify a warranty claim.
FASTENERS: Nails must be 11 OR 12 gauge corrosion-resistance roofing nails with 3/8" minimum
head. Nails must be long enough to penetrate the roof deck 3/4" or if the deck is less than 3/4"
thick, the nails should be long enough to penetrate fully and extend at least 1/8" through the roof
deck, or minimum of 1-1/4" long.
9.) APPLICATION
Four nails are required per shingle. The nails are to be located 9" up from the bottom edge of the
shingle, with one nail placed approximately 1" from each side of the shingle, and the remaining two
equally spaced between the two outer nails as illustrated in the diagram. NAILS MUST BE MINIMUM
OF 1-1/4" LONG. See Diagram #3. NAIL PLACEMENT IS IMPORTANT FOR WIND RESISTANCE.
INCORRECTLY PLACED NAILS WILL VOID WIND COVERAGE OF WARRANTY.
Prepare deck with approved underlayment, drip edges and flashings as recommended. Horizontal
and vertical chalk lines should be utilized to ensure proper shingle alignment from eave to ridge.
Starter Strip: Install minimum 10 1/2" wide Pro-Cut® Starter Strip over underlayment at eaves -
with sealant strip adjacent to decking edge. (See special requirement section #11 for 130 mph
High Wind Application.)
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