Duro-last ISO Foil User Manual download pdf

Duro-Last, “World’s Best Roof” and Duro-Guard are registered marks owned by Duro-Last, Inc.

dated: 10/31

2013

DURO-GUARD

ISO FOIL

FLAT AND TAPERED PANELS

1 of 2 www.duro-last.com 800-248-0280

ure 1. Duro-Guard ISO Foil On Steel Deck

Description:

Duro-Guard

ISO Foil is a closed-cell

polyisocyanurate foam core insulation board with

integrally laminated foil facers which are compatible

with Duro-Last

roof membranes.

 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 decks.

 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 2 for physical properties.

 This product is not intended as a substitute for

a vapor retarder.

 Duro-Last membrane shall not be adhered to

this product.

 This product is not an acceptable substrate for

the Duro-Bond

System.

Recommended Uses:

 Mechanically attached Duro-Last roof systems.

 Metal retrofit roof systems.

Underwriters Laboratories, Inc. Classifications:

 UL 1256.

 Insulated Metal Deck Constructions.

o No. 120, 123, 292.

 UL 790.

 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 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 1 for R-value and flute

spanability.

* Contact Duro-Last for additional thickness options.

TABLE 1. THERMAL VALUES

THICKNESS*

LTTR

R-VALUE

FLUTE

SPANABILITY

inches mm inches mm

1.00 25 5.60 2.625 67

1.50 38 8.50 4.375 111

1.60 41 9.10 4.375 111

1.70 43 9.60 4.375 111

2.00 51 11.40 4.375 111

2.50 64 14.40 4.375 111

2.70 69 15.60 4.375 111

3.00 76 17.40 4.375 111

3.30 84 19.20 4.375 111

3.50 89 20.50 4.375 111

3.60 91 21.10 4.375 111

4.00 102 23.60 4.375 111

1 2

Summary of Contents

Page 1 - ISO FOIL

Duro-Last, “World’s Best Roof” and Duro-Guard are registered marks owned by Duro-Last, Inc. Updated: 10/31/2013 DURO-GUARD® ISO FOIL FLAT AND TAPERE

Page 2 - Updated: 10/31

Duro-Last, “World’s Best Roof” and Duro-Guard are registered marks owned by Duro-Last, Inc. Updated: 10/31/2013 2of 2www.duro-last.com 800-248-0280

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Duro-last ISO Foil User Manual

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