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930073" Avenue North Phone: 888-412-3726 <br /> Brooklyn Park,MN 55428 Babcock-Davis Fax: 888-312-3726 <br /> ( www.Babcodcnavis.com Always right Mere. info@BabcockDavis.com ' <br /> 7 <br /> April 28,2008 <br /> Subject: Fire Resistance for Roof Hatch Products <br /> Babcock Davis manufactures roof hatch products used for roof access for personnel and <br /> equipment. The basic design is of metal construction, typically steel or aluminum. There is no <br /> requirement for a fire rated or fire resistant roof hatch in industry. The metal, non-combustible <br /> construction of roof hatches, in general, automatically meets the UL 790 Class A fire resistance <br /> requirement. <br /> Gary Nelson, an ICC International Code Council staff member from the Chicago plan review <br /> location, confirmed in a code opinion phone call that there are no international building code <br /> requirements for fire resistant or fire rated roof hatches. <br /> Also, in speaking with Underwriters Laboratories, a similar opinion exists. Steel metal roof <br /> hatches automatically comply with the classification of Class A with respect to the burning brand <br /> test as described in the standard for tests for Fire Resistance of Roof-Covering Materials, UL <br /> 790. The test is applicable for roofing materials and systems. <br /> `F So in summary, roof hatches do not require any special testing to qualify as Class A UL790 fire <br /> rated. <br /> Sincerely, <br /> Kristine Oppong <br /> Product Manager <br /> Babcock Davis <br /> 763-488-9211 <br /> Babcock-Davis Fire Resiance RH Letter.Docx <br /> COMPLEMENTARY BUILDING PRODUCTS <br /> .ACCESS DOORS.FLOOR DOORS*ROOF HATCHES&SMOKE VENTS'ENTRANCE FLOORING SYSTEMS.WALL&000R PROTECTION.STAIRNOSINGS <br />