Installation Instructions

GlassMaster General Instructions - Ardmore, OK & Hampton, GA
Atlas Roofing
first course shingle, flush with the left edge and exposing the first course 5". Proceed with full
shingle across roof maintaining 5" exposure. See Diagram #6.
Third Course: Cut 12" off the left end of a shingle and apply the remaining larger piece flush with
the left rake edge, over the second course and exposing 5". Proceed across the roof maintaining
the 5" exposure. See Diagram #6.
Fourth Course: Cut 18" off a shingle and apply the right half over the third course, flush with the
left rake edge, exposing 5". Proceed with full shingles across the roof, maintaining 5" exposure on
the course below.
Fifth Course: Repeat the above sequence to complete the roof.
10. STEEP SLOPE/MANSARD/HIGH WIND APPLICATION
For Steep Slope/Mansard/High Wind application, 6 fasteners must be used with fasteners located
5-5/8" above shingles butt edge, 1" from each side and 1" to either side of the cutouts. Immediately
upon application to slopes exceeding 45 degrees (or 12" per ft.), apply six (6) quarter size spots of
asphalt plastic cement under each shingle. Two spots of cement about the size of a quarter are to
be placed under each tab. One spot is to be placed 1" to 2" from each side edge of tab and near
bottom and press into position. Cement should come near edge of shingle, but not be exposed.
CAUTION: Excessive use of roofing cement can cause shingles to blister. See Diagram #7.
6 / 8