I. INTRODUCTION

1.1
SUNLIFE Systems International, Inc. submitted their SUNLIFE Acrylic Two Coat Roof Coating Roofing System for testing to determine if it meets the Approval requirements of Factory Mutual Research Corporation (FMRC) Standard 4470 for Class 1 Fire when applied over FMRC Approved Insulated Metal Roof Deck Panels.

1.2
Examination included ASTM E108 (92) Fire Tests of Roof Coverings, simulated hail damage testing and resistance to foot traffic testing. All other tests were waived based on previous tests conducted on a similar roof coating, conducted under J.I. 0T5A0.AM, dated March 9, 1992.

1.3
Tests show that SUNLIFE Acrylic Two Coat Roof Coating Roofing System meets FMRC Standard 4470 Approval requirements for Class 1 Fire and is Approved as such when installed as described in CONCLUSIONS of this report.


II. MATERIALS TESTED

SUNLIFE Acrylic Two Coat Roof Coating Roofing System is a field applied, liquid acrylic coating. The system consists of SUNLIFE Acrylic Roof Coating applied as a roof membrane in two coats with either spray roller or brush applications. Each coat is applied in two separate layers with a coverage of 20 mils (wet) thick. The SUNLIFE Roof Coating is a water soluble acrylic based liquid. The coating is white in color.


III. TESTS: CRITERIA AND PROCEDURES

3.1
Tests conducted were as required by FMRC Standard 4470 Roof Covers.

3.2
ASTM E-108 (92) Fire Tests

3.2.1
The exterior fire tests were conducted in accordance with the ASTM E-108 (92) Fire Tests of Roof Coverings, Class A, noncombustible deck test procedure. The wind velocity over the top of each test sample was adjusted to 12 ± 5 mph (5.4 ± 0.2 m/s). The tests were conducted at a slope of 4:12 in. (102: 305 mm).

3.2.2
Spread of Flame Tests The flame was adjusted to 1400 ± 50”F (760 ± 28”C) as determined by a thermocouple located 1 in. (25 mm) above the surface and 1/2 in. (13 mm) toward the source of the flame from the lower edge of the panel. Sample size was 3-1/3 ft. x 8 ft. (1.0 m x 2.4 m). The flame was applied continuously for 10 minutes. During and after the application of the flame, the panel was observed for distance of maximum flame spread, glowing brands and other damage.

3.3
Simulated Hail Damage Test

3.3.1
The Severe Hail (SH) simulated hail damage test was conducted using the FMRC simulated hail damage test apparatus to evaluate the ability of the roof covering (coating) to withstand a hailstorm without damage to the membrane. The test criteria states that there must be no evidence of splitting or rupture of the roof cover.

3.3.2
A 1-3/4 in. (49 mm) diameter steel ball weighing 0.78 lbs. (0.4 kg) was dropped from a 17 ft. 9-1/2 in. (5.4 m) height through a 2 in. (51 mm) ID PVC tube. This procedure was repeated, a total of ten drops, on various sections of the sample. After each drop the sample was inspected for any cracks in the weatherproof membrane. The sample was tested after a 28-day cure period.

3.4
Resistance to Foot Traffic Test

3.41
The test was conducted to evaluate the ability of the roof cover (coating) to withstand simulated foot traffic without damage to the weatherproof membrane. The test criteria state that there shall be no tearing or cracking of the protective cover.

3.4.2
A 3 in. (76 mm) square steel plate with rounded corners was placed on the test sample. A 200 lb. (91 kg) load was imposed on the plate, then reduced to zero. This cycle was repeated four additional times. After each cycle, the coating was inspected for damage.


IV. TEST SAMPLES

4.1
ASTM E-108 (92) Spread of Flame Test Samples Š Sample No. 1: A 3-1/3 ft. x 8 ft. (1.0 m x 2.4 m) x 1/2 in. (13 mm) thick plywood test panel was covered with a galvalume coated FMRC Approved insulated metal roof panel. A coat of Sunlife Acrylic Roof Coating was brush applied to the metal surface, at a 20 mil thickness. A second coat was applied over the first coat, after allowing the first coat a 24 hour cure time; the second coat was also brush applied at a 20 mil thickness. The application rate and cure time were in accordance with the manufacturerÕs instructions. The entire roof system was allowed to cure for 28 days before testing. Sample No. 2: Constructed identical to Sample No. 1.

4.2
Simulated Hail Damage Test Sample Š One 1 ft. x 4 ft. (0.6 x 1.2 m) sample was prepared. The construction was identical to paragraph 4.1. 4.3 Resistance to Foot Traffic Test Sample Š One 2 ft. x 4 ft. (0.6 x 1.2 m) sample was prepared. The constructionwas identical to paragraph 4.1.


V. RESULTS

5.1
The ASTM E-108 (92) Spread of Flame Test results are given below:

Sample No. 1: Slope Tested: 4:12 in. Max Flame Spread: 4 ft.-0 in. (12 m)

Sample No. 2: Slope Tested: 4:12 in. Max Flame Spread: 3 ft.-7 in. (1.1 m)

At no time during the Spread of Flame tests was the deck exposed, flying brands developed or excessive lateral flame spread observed.

5.2
After each drop of the simulated hail impactor, the SH Simulated Hail Damage Test sample was examined for cracking. There was no evidence of any cracking in the coating during each test.

5.3
After each test cycle, the Resistance to Foot Traffic Test sample was examined. There was no evidence of damage to the coating.


VI. CONCLUSIONS

6.1
Test results show that the SUNLIFE Acrylic Two Coat Roof Coating Roofing System, manufactured by SUNLIFE Systems International, Inc. meets FMRC Standard No. 4470 Approval requirements for Class 1 Fire for application over FMRC Approved Insulated Metal Roof Deck Systems for new and recover constructions for slopes up to 4:12 in. (102:305 mm) when applied as outlined below:

6.1.1
The first coat of SUNLIFE Acrylic Roof Coating is applied over the surface of the metal insulated roof deck at a 20 mil thickness (wet), allowed to cure for 24 hours; a second coat is then applied at the 20 mil thickness (wet). The total dry mil build is 20 mils (40 mils wet with residual solids). A field seam may be applied over the insulated metal deck seam by placing a strip of the polyester mat, Approved under J.I. 0T5A0.AM, directly into the wet first coat and immediately coating the mat with a top coat. After the 24 hour cure time, add the second coat over the metal deck to include the field seam. The first coat of SUNLIFE Roofing Compound is applied at 2 gal./ft.2 (0.82 l/m2) and allowed to cure for 24 hours before applying the second coat of compound at the same rate.

6.1.2
The above construction meets ASTM E 108 Class A, noncombustible deck rating at a maximum slope of 4:12 in. (102:305 mm).

6.2
The roof cover system described above is acceptable over either a Class 1 or 2 rated existing roof construction. Application of this system over an existing Class 2 rated roof deck will not upgrade the construction to Class 1.

6.3
The roof cover applied over FMRC Approved Metal Insulated Roof Deck Systems must be installed using an FMRC Approved Roof Perimeter Flashing system (see FMRC Approval Guide).

6.4
The construction described above meets FMRC Approval criteria and, when Approval is effective, will be listed in the FMRC Approval Guide in the Roof Cover category.

6.5
Approval is effective when the Approval Agreement is signed and returned to FMRC. Continued Approval will depend upon satisfactory field experience and periodic Quality Audit Inspections.


VII. MARKING

7.1
The manufacturer shall mark each packing container or label with the manufacturerÕs name and product trade name. In addition, the container must be marked with the FMRC Approval mark and words, ŌŌSubject to the conditions of Approval as a roof cover when installed as described in the current edition of the FMRC Approval Guide.Ó

7.2
The manufacturer agrees that use of the FMRC name or Approval mark is subject to the conditions and limitations of FMRC Approval. Such conditions and limitations must be included in all references to FMRC Approval.


VIII. MANUFACTURERÕS RESPONSIBILITIES

8.1
To assure compliance with his procedures in the field, the manufacturer shall supply to the roofer such necessary instruction or assistance required to produce the desired performance achieved in the tests.

8.2
The manufacturer shall notify the Factory Mutual Research Corporation of any planned change in the Approved products, using Form 797, Approved Product Revision Report, prior to general sale or distribution.


IX. QUALITY AUDIT INSPECTION AND REEXAMINATION

A re-examination and manufacturing inspection will be conducted-periodically at SUNLIFE Systems International, Inc.Õs facilities in Charlotte, N.C. on the Approved products to determine that the quality and uniformity of the materials have been maintained and will provide the same level of performance as originally Approved.

TESTS BY: D. A. Kettle

REPORT BY: APPROVED BY:
D. A. Kettle
Engineer
Materials Section

APPROVED BY:
G. A. Smith
Manager
Materials Section (Approvals)

|Built-up| |Metal| |Singleply| |Universal| |Wet| |US Applicators| |Warranty|

This site is best viewed with Netscape Navigator 4.7 or Microsoft Explorer 4.5

  Sunlife Systems International, Inc.
5301 Nations Crossing Road
Charlotte, NC 28217
(800) 328-5885
Tel: (704) 527-2480
Fax: (704) 527-0534

© 2006 Sunlife Systems International, Inc.

All rights reserved.

Do not duplicate or redistribute in any form.