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
™