Duro-Last Metal Compression System - 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
36
DURO-LAST® METAL COMPRESSION
SYSTEM
Description:
The Duro-Last ® Metal Compression System may be
used as a perimeter flashing for the Duro-Last roofing
system. The system consists of a Galvalume

steel base
and a snap-on metal cover. The system is listed by
FM Approvals as a Class 1 perimeter flashing with the
4 inch (102 mm) wide system achieving a Class 1-360
and the 6 inch (152 mm) wide system achieving a Class
1-135.

The base is fabricated from 24-gauge Galvalume
steel and comes in 10 foot lengths. The base is
available in widths ranging from 3 to 8 inches
(76-203 mm).

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. A wood nailer is required if 1 inch or greater of
insulation is used. The top of the nailer must be flush
with the top of the insulation.
2. Fasten the flange of the metal base with fasteners
spaced 6 inches on center. When installing the base
within 10 feet of an outside corner the fastening
pattern is 3 inches on center.
3. Bring the roof membrane over the base and fasten it
6 inches on center into the vertical face of the metal
base. When installing within 10 feet of an outside
corner the fastening pattern is 3 inches on center.
4. Install the metal cover over the base and membrane.
5. The metal cover should be installed so that the joints
between sections are offset a minimum of 12 inch
(25 mm) from the joints between sections of the
metal base.
6. Adjacent sections of cover are designed to overlap.
No joint clips are required.
7. Refer to detail drawing 3110 for installation
information when roof system is mechanically
attached or FA3110 when the roof system is fully
adhered.
Note:

The metal base 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).
Metal Compression System
(see details 3100 & FA3110)
Revised: 12/15/2011