Duro-Last ISO Foil User Manual

DURO-GUARD® ISO FOIL

FLAT AND TAPERED PANELS

Description:

Duro-Guard polyisocyanurate foam core insulation board with integrally laminated foil facers which are compatible with Duro-Last

 Manufactured with a blowing agent that has

 Approved for direct application to steel decks.

 Available in two grades of compressive

 Refer to Table 2 for physical properties.

 This product is not intended as a substitute for

 Duro-Last membrane shall not be adhered to

 This product is not an acceptable substrate for

Recommended Uses:

 Mechanically attached Duro-Last roof systems.

 Metal retrofit roof systems.

ISO Foil is a closed-cell

roof membranes.

zero ozone depletion potential (ODP) and virtually no global warming potential (GWP).

strength per ASTM C 1289.

o Type II, Class 1, Grade 2 (20 psi). o Type II, Class 1, Grade 3 (25 psi).

a vapor retarder.

this product.

the Duro-Bond

System.

Figure 1. Duro-Guard ISO Foil On Steel Deck

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.

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).

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

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Updated: 10/31/2013

THICKNESS*

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

TABLE 1. THERMAL VALUES

LTTR

R-VALUE

FLUTE

SPANABILITY

ast.co

800

DURO-GUARD® ISO FOIL

Installation:

 Panels must be kept dry before, during and

after installation. Install only as much insulation as can be covered the same day with completed roofing.

 The use of multiple layers of insulation with

joints staggered a minimum of 6 inches between layers is recommended to eliminate thermal bridging.

 Abut panel edges together and stagger joints of

adjacent panels.

 Boards must be neatly fitted to roof deck and

around penetrations with no gaps greater than ¼ inch.

 Refer to the appropriate Duro-Last roof system

specification and detail drawings for deck preparation and attachment requirements.

 Precautions must be taken to ensure that new

concrete decks have fully hydrated and do not continue to release moisture.

TABLE 2. TYPICAL PHYSICAL PROPERTIES

Compressive

Strength

Dimensional

Stability

Moisture Vapor

Transmission

Water

Absorption

Service

Temperature

ASTM D 1621 ASTM C 1289

ASTM D 2126

ASTM E 96

ASTM C 209 < 1% volume

Grade 2

Grade 3

2% linear change

(57.5 ng/Pa·s·m

-40° to 200° F

(-40° to 93° C)

20 psi

(138 kPa)

25 psi

(172 kPa)

(7 days)

< 1 perm

Limitations:

 Duro-Last, Inc. will not be responsible or liable

for any defects or problems related to building or roof design by others, to deficiencies in construction, to dangerous conditions on the job site, or to improper storage, handling or installation by others.

)

Panel Attachment:

 Panels may be attached to the roof deck using

mechanical fasteners. Insulation adhesive or hot bitumen are not acceptable to use with this product.

Mechanical Attachment

 When installing multiple layers (which may

include insulation, cover boards and thermal barriers) it is acceptable to mechanically secure through all layers.

 Use fasteners and plates supplied by or

approved by Duro-Last, Inc.

Storage:

 Insulation must be protected from open flame

and kept dry at all times.

 Factory applied packaging is intended only for

protection during transit. Slit or remove the packaging to prevent accumulation of condensation.

 Store elevated (at least 3 inches) and

completely covered with a weatherproof covering such as a tarpaulin.

 Do not use panels which are wet or damaged.

 Refer to PIMA Technical Bulletin No. 109:

Storage and Handling Recommendations for Polyiso Roof Insulation for additional guidelines

(www.pima.org).

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

2of 2www.duro-l

Updated: 10/31

-248-02

2013