Duro-Last Gravel Stop - Metal Cover - 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
35
DURO-LAST ® GRAVEL STOP
with Metal COVER
Description:
Duro-Last ® Gravel Stop with Metal Cover may be used
as a perimeter flashing for the Duro-Last roofing system.
The system consists of Duro-Last Gravel Stop and a
snap-on metal cover. The system has been approved by
FM Approvals as a Class 1-930 perimeter flashing.

Duro-Last Gravel Stop is fabricated from rigid exterior
vinyl and includes a 6 inch (152 mm) wide skirt made
of Duro-Last specially formulated roofing membrane
which is a proprietary thermoplastic formulation. Both
the rigid vinyl and the skirt are available in white, gray,
and tan colors. Combinations of the colors (tan face
with white skirt, for example) are available upon
request.
Duro-Last Gravel Stop is 10 feet long and available in
two widths: 2 inches (51 mm) and 4 inches (102 mm).
The Gravel Stop has pre-punched slotted holes
8 inches (203 mm) on center for fastening.

The metal cover is 10 feet long and available in
24-gauge galvalume steel with 35 stocked finishes as
well as in these specialized metals:
* .040 aluminum with Kynar finish.
* .040 aluminum with mill finish.
* 16-oz. copper.
* 24-gauge stainless steel.
* 24-gauge bonderized (paintable) steel.
Contact Duro-Last, Inc. to request a color chart,
samples and information regarding custom metals and
finishes.
Installation:
1. Gravel Stop can be installed on any flat edge
including the top of parapet walls. The edge must be
straight and even (refer to details 3090 and 3100).
2. Attach the roofing membrane over the edge to hold it
in place.
3. It is recommended not to use prefabricated vinyl
gravel stop corners when using a metal cover.
4. Fasten the Gravel Stop to the deck or wood nailer
with approved fasteners spaced 8 inches (203 mm)
on center.
5. It is necessary to allow 1 inch (25 mm) spacing
between each section of Gravel Stop.
6. Heat weld (hot-air) the Gravel Stop skirt to the field
membrane.
7. The metal cover should be installed so that the joints
between sections are offset a minimum of 12 inches
(25 mm) from the joints between sections of the
Gravel Stop.
8. Adjacent sections of cover are designed to overlap.
No joint clips are required.
9. Refer to detail drawings 3520 and 3530 for
installation information.
Note:

Gravel Stop and metal cover are ordered separately in
10 foot lengths. They will be packaged in cardboard
tubes or wooden crates.

The cover is shipped with a protective plastic film
which should be removed prior to installation.

To clean the metal cover use soap and water (i.e.
1/3 cup laundry detergent per gallon of water).
2" (51 mm) wide
Gravel Stop with Metal Cover
(see detail 3520)
4" (102 mm) wide
Gravel Stop with Metal Cover
(see detail 3530)
Revised: 12/15/2011