Duro-Last ISO III CG - Manual

Duro-Last, “World’s Best Roof” and Duro-Guard are registered marks owned by Duro-Last, Inc.
Updated: 10/30/2013
DURO-GUARD
®
ISO III CG
FLAT AND TAPERED PANELS
1 of 2 www.duro-last.com 800-248-0280
Figure 1. Duro-Guard ISO III CG Flat On Steel Deck
TABLE 1. TYPICAL TAPER PANEL DIMENSIONS
ID SLOPE* SIZE MIN MAX
Q ½” per ft. 4% 4 ft. x 4 ft. ½” 2-½”
QQ ½” per ft. 4% 4 ft. x 4 ft. 2-½” 4-½”
X ¼” per ft. 2% 4 ft. x 4 ft. ½” 1-½”
Y ¼” per ft. 2% 4 ft. x 4 ft. 1-½” 2-½”
G ¼” per ft. 2% 4 ft. x 4 ft. 1” 2”
H ¼” per ft. 2% 4 ft. x 4 ft. 2” 3”
AA ⅛” per ft. 1% 4 ft. x 4 ft. ½” 1”
A ⅛” per ft. 1% 4 ft. x 4 ft. 1” 1-½”
B ⅛” per ft. 1% 4 ft. x 4 ft. 1-½” 2”
C ⅛” per ft. 1% 4 ft. x 4 ft. 2” 2-½”
* Contact Duro-Last for additional slope options.
Figure 2. Duro-Guard ISO III CG Taper
Description:
Duro-Guard ® ISO III CG is a closed-cell
polyisocyanurate foam core insulation board with an
integrally laminated, heavy, durable and
dimensionally stable coated-glass facer which is
compatible with Duro-Last
® roof membranes.
 Available in both flat and tapered panels in
order to meet thermal insulation needs as well
as provide slope for proper roof drainage.
 Manufactured with a blowing agent that has
zero ozone depletion potential (ODP) and
virtually no global warming potential (GWP).
 Approved for direct application to steel and
other deck types.
 Available in two grades of compressive
strength per ASTM C 1289.
o Type II, Class 1, Grade 2 (20 psi).
o Type II, Class 1, Grade 3 (25 psi).
 Refer to Table 3 for physical properties.
Recommended Uses:
 Mechanically attached Duro-Last roof systems.
 Adhered/Fully Bonded Duro-Last roof systems.
 Duro-Bond
® roof systems.
 Metal retrofit roof systems.
Underwriters Laboratories, Inc. Classifications:
 In some cases, use of this product may result
in a Class A or B fire rating over a combustible
deck without the use of a fire rated slip sheet or
board. Refer to Duro-Last’s UL Listings
(TGFU.R10128) for assembly details.
 UL 1256, UL 790.
 Insulated Metal Deck Constructions:
o No. 120, 123, 292.
 UL 263 Hourly Rated P Series Roof
Assemblies.
 UL Classified for use in Canada.
Factory Mutual Approvals:
 FM 4450, FM 4470.
 Approved for Class 1 insulated steel, wood,
concrete and gypsum roof deck construction.
 Refer to FM Approval’s RoofNav for details on
FM Approved systems (www.roofnav.com).
Flat Panels:
 Available sizes:
o 4 ft. x 4 ft.
o 4 ft. x 8 ft.
o Thicknesses: 1 to 4 inches.
 Refer to Table 2 for R-value and flute
spanability.
Tapered Panels:
 Available sizes:
o 4 ft. x 4 ft.
o Thicknesses: ½ to 4-½ inches.
 Precut miters and crickets are also available.
 Taper designs and shop drawings available.