UL / ICC / FM / SWRI/ NFPA APPROVALS

(UL) UNDERWRITERS LABORATORIES
(FM) FACTORY MUTUAL (GLOBAL)
(ICC) INTERNATIONAL CODE COUNCIL
       NOTE: (ICBO) International Conference of Building Officials is now part of ICC.
(NFPA)NATIONAL FIRE PROTECTION ASSOCIATION
(SWRI) Southwest Research Institute

(UL) UNDERWRITERS LABORATORIES
To be classified, both the coating and polyurethane foam must continuously meet standards and inspections of Underwriters Laboratories. The roof system classification denotes a specific foam with a specific coating at a specified slope and is dependent upon the substrate. For recover over an existing roof with a non-combustible deck, combustible decks, the lesser of the existing roof or the foam system rating will prevail.

1. UL-790 (ASTM E-108)
UL-790 is the UL standard for tests of roof covering systems for resistance to fire originating form sources outside a building. The tests include the intermittent flame test, the spread-of-flame test, and the burning brand test for systems installed on combustible decks. On non-combustible decks, only the spread of flame test is required. Roof Systems are rated either Class A, B or C (with Class A being the most fire resistant) for both new and for repair and maintenance systems depending upon roof substrate and foam & coating used in the application.

2. UL-723 (ASTM E-84)
This test measures the relative spread of flame and smoke developed of individual components of a system. It is valuable for comparing the flame spread and smoke developed of one polyurethane foam to another. It utilizes a 25 foot tunnel and compares the performance of foam or coatings with that of red oak flooring. Materials are classified as Class 1,2 or 3. In many construction applications.

3. UL-1256
The White House Test was a full-scale roof assembly test to determine the ignitability of a roof structure from a fire inside the structure, and the effect of the underside fire spread if the roof structure should ignite. During the initial approval testing, under deck flaming for the polyurethane roof system applied to a ribbed steel deck was significantly less than for the standard built-up roof, even though winds gusted up to 25 m.p.h. on the day of the test. In addition, air temperatures at the flue end of the White House tunnel were well under the standard during the last 20 minutes. In the final analysis, all four systems tested were eligible to be designed as Class A as applied on noncombustible roof decks.

The White House Test proved that polyurethane foam applied directly to Butler rib steel decking did not drip, melt, or spread the flame under the deck. Until this test was done by UL for the Naval Civil Engineering Laboratory (N.C.E.L.), all newly constructed steel decks required a suitable fire barrier installed on the steel deck prior to the application of the spayed polyurethane foam. Model codes are in the process of eliminating this requirement.

The UL-1256 is a small-scale test utilizing the Steiner Tunnel, But with the metal roof deck down as it would be in an actual structure. Based on the original testing by UL with the White House Test for the N.C.E.L., all additional classifications by UL have been made on the basis of the UL 1256 test.

UNDERWRITERS LABORATORIES TESTING FOR SAFETY
Underwriters Laboratories Inc. (UL)), founded in 1894, is chartered as a nor for profit, independent organization testing for public safety. It maintains and operates laboratories for the examination and testing of devices, systems and materials to determine their relation to life, fire, casualty hazards and crime prevention. UL's findings are recognized by insurance rating bureaus and many Federal agencies, state, county, and municipal authorities and inspectors.

ROOFING MATERIALS AND SYSTEMS
ROOF COVERING MATERIALS
Roof covering materials consist of two basic types: (1) Roofing Systems, generally involving the assembly of several components and may require special equipment to apply the materials involved and (2) Prepared materials, which can be applied directly to a roof deck in accordance with the manufacturer's instructions provided with the product. These coverings are intended for the protection of roof deck from external fire exposure and have not been evaluated for performance when exposed to a fire from an internal source, i.e., directed onto the underside of the roof deck assembly.
As indicated in individual Classifications or Listings, specific materials have been supplementary fire tested in accordance with the requirements of the indicated nationally recognized Codes and Standards.

(UL) CLASS A, B OR C
CLASS A includes roof coverings which are effective against severe fire exposures. Under such exposures roof coverings of this class are not readily flammable and do not carry or communicate fire; afford a fairly high degree of fire protection to the roof deck; do not slip from position; possess no flying brand hazard; and do not require frequent repairs in order to maintain their fire-resisting properties.

CLASS B includes roof coverings which are effective against moderate fire exposures. Under such exposures roof coverings of this class are not readily flammable and do not carry or communicate fire; afford a fairly high degree of fire protection to the roof deck; do not slip from position; possess no flying brand hazard; and may require infrequent repairs in order to maintain their fire-resisting properties.

CLASS C includes roof coverings which are effective against light fire exposures. Under such exposures roof coverings of this class are not readily flammable and do not carry or communicate fire; afford some degree of fire protection to the roof deck; do not slip from position; possess no flying brand hazard; and may require occasional repairs or renewals in order to maintain their fire-resisting properties.

Accordingly, Ari-thane's & Arizona Foam's manufacturing company - SWD Urethane Co. Classified Products bearing the appropriate Listing mark are shown in the UL directory and here as covered by UL listing and their follow-up Service. The appearance of catalog or model numbers or other specific product designation in the directory and here signifies that samples of such products have been submitted to UL and found to comply with the applicable requirements and that the manufacturer has been authorized to use the appropriate Listing Mark or Classification Marking on production that continues to comply with the requirements.

Southwest Research Institute, approved by ICC, tests many of ous SWD Urethane productsFor UL 723, UL 94 and other specialty tests.

ICC ER-3182 Report for Roof Covering and Roof Deck Construction