Table of Contents(Page DL-4)

Double-Lok® ENGINEERING

UNDERWRITERS LABORATORIES APPROVAL
Double-Lok®

Construction
Number

Panel
Width (In.)

Gauge

Clip
Type

Clip
Spacing

Substrate

UL-2218
Impact Resistance

UL-263
Fire Rating

UL-580
Rating

180C

24

24 min.

A

5'-0"

Composite System

Class 4

Class A

Class 90

287

24

24 min.

A

5'-0"

Open Framing

Class 4

Class A

Class 90

308A

24

24 min.

A

5’-0"

Composite System

Class 4

Class A

Class 90

450

24

24 min.

A

5'-0"

Open Framing

Class 4

Class A

Class 90

538

24

24 min.

B

5'-0 1/4"

Open Framing

Class 4

Class A

Class 90

539

24

24 min.

B

5'-0"

Composite System

Class 4

Class A

Class 90

540

24

24 min.

B

5'-0 1/4"

Composite System

Class 4

Class A

Class 90

A — Articulating
B — Floating or Articulating

NOTES

  1. Tests procedures are in accordance with Underwriters Laboratories Standard UL-580 under "Tests For Uplift Resistance of Roof Assemblies".
  2. A detailed installation method is available for each Construction Number above and can be found in the UL Roofing Materials and Systems Directory. The panels must be installed in a certain manner to achieve the published results.
  3. The panel qualifies for a Class A fire rating in compliance with Underwriters Laboratories Standard UL-263.
  4. The panel system is listed under the following Fire Resistance Design Numbers: P224. P225, P227, P230, P233, P237, P265, P268, P508, P510, P512, P701, P711, P715, P717, P720, P722, P724, P726, P731, P734, P736, P801, P803, P814, P815, P819, P821, and P823. Refer to the UL Fire Resistance Directory for specific construction methods and hourly ratings.
  5. Construction Number 450 includes the use of a domed skylight.

FACTORY MUTUAL APPROVAL
Double-Lok®

Panel
Width

Gauge

Clip Type

Clip
Spacing

Substrate

Hail Damage
Rating

ASTM E108
Fire Rating

FM Windstorm
Rating

24

24

**

4'-0"

Open Framing

Class 1-SH

Class A

Class 1-60

24

24

**

5'-0"

Open Framing

Class 1-SH

Class A

Class 1-60

24

22

**

5'-0"

Open Framing

Class 1-SH

Class A

Class 1-75

24

22

**

4'-0"

Open Framing

Class 1-SH

Class A

Class 1-90

18

24

**

5'-0"

Open Framing

Class 1-SH

Class A

Class 1-90

24

22

Floating

3'-6"

Open Framing

Class 1-SH

Class A

Class 1-105

24

22

Articulating

4'-0"

Open Framing

Class 1-SH

Class A

Class 1-105

**Floating or Articulating

NOTES

  1. Tests procedures are in accordance with Factory Mutual Research Corporation (FMRC) Standard 4471.
  2. A detailed test report is available for each product above. The panels must be installed in a specific manner to achieve the published results. Contact ASBC for more information.

ICBO APPROVAL

Double-Lok® Roofing System details, engineering calculations, computer printouts, and data have been examined by the ICBO Evaluation Service, Inc. and have been found to comply with the 1997 Uniform Building Code.

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