Instructions / Assembly
Second and Subsequent Courses
Start the second course with a shingle that has a half tab removed. Continue the
subsequent courses by removing tabs as follows: third course trim full tab, fourth course
trim 1-1/2 tabs, fifth course trim 2 tabs, sixth course trim 2-1/2 tabs. Strike a chalk line every six
courses to check for alignment to the eave edge. Begin seventh course with a full shingle, and
repeat the pattern above for subsequent courses.
NOTE: Shingles may be laid from either
left or right hand side. Start at either rake
edge with shingles having 6" (152mm)
trimmed from rake.
4
Wall Flashing (Sloped Roof to Vertical Wall)
6
Chimney Flashing
7
Hip and Ridge
Use GAFMC hip & ridge shingles, or cut hip & ridge shingles from these full shingles, and
apply as shown. Position laps away from prevailing wind direction.
5
Non-corroding metal
counter-flashing to
extend down over
base flashing
Cricket on
high side of
chimney
Non-corroding metal base flashing.
One piece step flashing for each course.
Cement in place and nail with 2 nails.
Bond overlying shingles in asphalt
plastic cement
Trim off
half a tab
First Course
Second Course
First
Course
Nail 5 5/8" (143mm)
above butt. 1" (25mm)
from edge
5" (127mm) exposure
Cover nails
with cement
Taper for best
appearance
Apply laps away from
prevailing wind direction
Cut shingle to make three
12" (305mm) x 12" (305mm)
hip & ridge shingles
from each strip
Bend hip & ridge shingle
centered over hip or ridge
Roof Deck
Metal Flashing
(Nailed to the deck, not to vertical side wall)
SidingSheathing
Shingle
Cap Shingle–Do Not Nail.
Install with Roofing Cement
Roofing Cement
5" (127mm) Min.
Starter Course
Apply as shown.
2
First Course
Start and continue with full shingles laid flush with the starter course. Shingles may be
laid from left to right or right to left. DO NOT lay shingles straight up the roof since this
procedure can cause an incorrect color blend on the roof and may damage the shingles.
3
Underlayment: Standard Slope–4/12 (333mm/m) or more
Application of underlayment: Cover deck with one layer of underlayment installed without
wrinkles. Use only enough nails to hold underlayment in place until covered by shingles.
Application of eave flashing: Install eave flashing such as GAFMC Weather Watch
®
or
StormGuard
®
Leak Barrier in localities where leaks may be caused by water backing up behind
ice or debris dams. Eave flashing must overhang the roof edge by 3/8" (10mm) and extend 24"
(610mm) beyond the inside wall line.
1
Underlayment: Low Slope 2/12-4/12 (167mm-333mm/m)
Application of underlayment and eave flashing: Completely cover the deck with two
layers of underlayment as shown. Use only enough nails to hold underlayment in place
until covered by shingles. Use blind nailing for eave flashings. At eaves and where ice dams can
be expected, use one layer of GAFMC Weather Watch
®
or StormGuard
®
Leak Barrier. Eave flash-
ing must overhang the roof edge by 3/8" (10mm) and extend 24" (610mm) beyond the inside
wall line. Where ice dams or debris dams are not expected, install 2 plies of Shingle-Mate
®
underlayment.
1a
Underlayment
Place shingles
close together but
don't crowd
Starter
Course
Continue
first course
with whole
shingles
Start first course with whole shingle placed
3/8" (10mm) over eave and rake edges
to provide drip edge
First Course
Weather Watch
®
or StormGuard
®
Leak Barrier.
36"
(914mm)
2" (51mm) Side Lap
4" (102mm) End Lap
Minimum Slope.
For lower slopes, see Box 1a.
12" (305mm)
4" (102mm)
Along eaves put underlayment
on top of metal drip edge.
Along rake, place
drip edge on top
of underlayment.
36"
(914mm)
Deck
All sheets are 36"
(
914mm
)
wide Shingle-Mate
®
underlayment.
3/8" (10mm)Roof Overhang
Lap sheets
19" (483mm)
to provide
double coverage.
Weather Watch
®
or StormGuard
®
Leak Barrier.
Rake drip edge
2" to 4"
(51mm to 102mm)
Low slope
12" (305mm)
17"
(432mm)
36"
(914mm)
36"
(914mm)
17"
(432mm)
17"
(432mm)
19"
(483mm)
Eaves drip edge
3/8" (10mm) Roof overhang
All sheets are 36"
(
914mm
)
wide Shingle-Mate
®
underlayment.
Start at either rake and
lay in either direction
Non-corroding
Metal Drip Edge
Trim 6"(152mm)
to 7" (178mm)
from end of
first shingle
Underlayment
Place shingle 3/8
"
(10mm)
over eave and rake edges
to provide drip edge
Continue with full length
trimmed shingles
Trim tabs off all starter
course shingles, then place
and nail as shown, 3
"
to 4
"
(76mm to 102mm) from eave
For maximum wind resistance
along rakes, cement shingles
to underlayment and each
other in a 4’’ (102mm) width
of asphalt plastic roof cement.
Starter Course
6
"
(152mm)