Duro-Last Drain Boot - Manual

Duro-Last: The Proven Performer®
"Duro-Last" and "The World's Best Roof" are registered marks owned by Duro-Last , Inc.
DATA SHEET
www.duro-last.com 800-248-0280
DURO-LAST ® DRAIN BOOT
Description:
Duro-Last® prefabricated Drain Boots can be used in
most circular roof drains and are especially useful in
reroofing applications. They are fabricated from
Duro-Last's specially formulated roofing membrane.
The combination of reinforced membrane and
prefabrication ensures a long lasting, watertight
flashing.
The sleeve of the drain boot is a different color than
the base to differentiate it from Duro-Last Stack
Flashings. The base is available in white, tan, gray,
dark gray and terra cotta as well as in the Designer
Series membranes (slate gray Shingle-Ply

,
sandstone Shingle-Ply

and Rock-Ply

) and are
usually ordered to match the roof membrane.
Drain boots are prefabricated 12 inches (305 mm) in
depth. Special orders are available upon request.
Installation:
1. The roof membrane installed around the drain
must be fastened prior to installing the drain boot
flashing. Use the same fastener spacing that was
used to install the roof membrane but do not
exceed 18 inches (457 mm) on center. A minimum
of one fastener must be installed.
2. Apply Duro-Caulk ® Plus to the outside of the drain
boot before it is inserted into the drain pipe.
3. Once inserted, the drain boot shall be heat welded
(hot-air) to the field membrane.
4. A pair of expandable composite drain rings (CDR)
should then be installed as low into the drain boot
as possible, with a minimum depth of 6 inches
(152 mm).
5. Sealant and CDRs must be installed at the same
depth in the drain.
6. Refer to detail 2020 for installation information.
DRAIN BOOT DIMENSIONS
[All sizes have 24 x 24 in. (610 x 610 mm) base]
DRAIN DIAMETER SLEEVE DIAMETER
2 in. (51 mm) 1.875 in. (48 mm)
3 in. (76 mm) 2.875 in. (73 mm)
3.5 in. (89 mm) 3.25 in. (83 mm)
4 in. (102 mm) 3.875 in. (98 mm)
4.5 in. (114 mm) 4.25 in. (108 mm)
5 in. (127 mm) 4.875 in. (149 mm)
5.5 in. (140 mm) 5.25 in. (133 mm)
6 in. (152 mm) 5.875 in. (149 mm)
6.5 in. (165 mm) 6.25 in. (159 mm)
7 in. (178 mm) 6.875 in. (175 mm)
7.5 in. (191 mm) 7.25 in. (184 mm)
8 in. (203 mm) 7.875 in. (200 mm)
Revised: 4/6/2011
13
Drain Boot
(Install per detail drawing 2020)