Instructions / Assembly

©2016 GAF 8/16 gaf.com • 1-800-ROOF-411
Description
Standard M-Drain
is a spun-aluminum
or copper roof drain with gravel guard,
strainer caps, and water-proofing
plumbing seal attached. M-Drain
is
pre-flashed with either APP or SBS
smooth-surface modified bitumen mem-
branes, and is available in full and insert
sizes to accommodate new construc-
tion and retrofit applications. Unflashed
M-Drain
is also available.
Aluminum and copper M-Drains are
available in the following sizes.
1 1/2" (38 mm), 2" (50 mm),
2 1/2" (64 mm), 3" (76 mm),
3 1/2" (89 mm), 4" (100 mm),
4 1/2" (114 mm), 5" (127 mm),
5 1/2" (140 mm), 6" (152 mm).
2", (50 mm), 3" (76 mm), and 4" (100
mm) M-Drains, aluminum and copper,
are listed by the Uniform Plumbing
Code (UPC), file #3299.
Packaging: 3 flashed or 5 unflashed
per box, regardless of drain size.
Uses
Whole sized M-Drain
[2" (51 mm),
3" (76 mm), 4" (102 mm), 5" (127 mm)
or 6" (152 mm)] can be used on new
construction and directly attached
to new plumbing with a flexible
coupling.
Half-inch (12.7 mm) sized M-Drain
[1 1/2" (38 mm), 2 1/2" (63.5 mm), 3
1/2" (89 mm), 4 1/2" (114 mm), and
5 1/2" (140 mm)] can be used as
retrofit drains by inserting an
M-Drain
sized 1/2" (13 mm) smaller
than the drain pipe being fitted (for
a 4" [102 mm] drain pipe, use a 3
1/2" [89 mm] M-Drain
).
Advantages
No special tools needed for
installation.
Spun-aluminum design eliminates
seams and soldered joints.
Wide range of sizes allow for proper
fit into any size roofing drain.
Installation is quick and easy
because no clamping ring is
required for retrofit drains.
All hardware, including strainer
and gravel guard, come complete
with M-Drain
.
Positive drainage is ensured by
flat design of M-Drain
.
M-Seal
watertight expanding
seal for retrofit drains is
included, making plumbing
tie-in quick and easy.
Technical Data
Drain Material Available:
• 0.064 Aluminum
• 0.072 Copper
Flashing Material Available:
• APP Smooth
• SBS Smooth
Component Material:
Cast aluminum gravel guard
and strainer.
• M-Seal
expanding seal.
M-WELD
STANDARD M-DRAIN
(1 OF 2)
M-Weld
Standard M-Drain