Installation Instructions

GlassMaster General Instructions - Ardmore, OK & Hampton, GA

Atlas Roofing

area, Atlas will accept the recommendation from the Asphalt Roofing Manufacturers Association

(ARMA) that the nails should be long enough to penetrate 3/4" into the roof deck. Where the roof

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.

Re-Roofing Application (second shingle layer): Requires the same nail placement as New Roofing

but NAILS MUST BE A MINIMUM OF 1-1/2" LONG. NAIL PLACEMENT IS IMPORTANT FOR WIND

RESISTANCE. INCORRECTLY PLACED NAILS MAY VOID WIND COVERAGE OF WARRANTY.

9. APPLICATION

Prepare deck with saturated felt 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 Course: Use PRO-CUT® STARTER STRIP (Pro-Cut Starter Strip is REQUIRED for the

Signature Select Roofing System) or (if your roof is NOT qualifying for the Signature Select Roofing

System), you may use GLASSMASTER® 30 3-tab shingle for the starter course. Trim off tabs and

apply with 1/4" to 3/8" overhang on the eaves. Note the seal-down feature should be in line with

the eave. In order to offset seams, cut 6" off the left end of the first shingle. Begin application at

lower left rake of roof, and then continue across with full-length shingle, nailed with 4 nails equally

spaced across the shingle and nailed 3" up from the eave. See Diagram #5.

First Course: Begin first full shingle at lower left rake of roof or right of vertical chalk line and

continue course across roof with full shingles laid flush with starter course and fastened with 4 nails

placed as specified. Note: An optional band of asphalt plastic cement meeting ASTM D-4586 may be

applied to the rake of the roof with each shingle course to enhance wind resistance and to resist

wind driven rain. See Diagram #6.

Second Course: Cut 6" off the left end of a shingle and apply the remaining larger piece over the

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