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Frequently Asked Questions <br /> What is a "module type"? What attachments and flashings are deemed <br /> compatible with Class A? <br /> The new UL1703 standard introduces the concept of a <br /> PV module type, based on 4 construction parameters Attachments and their respective flashings are not <br /> and 2 fire performance parameters. The purpose of constituents of the rating at this time.All code-compliant <br /> this classification is to certify mounting systems without flashing methods are acceptable from a fire rating <br /> needing to test it with every module. standpoint. <br /> What roofing materials are covered? What mounting height is acceptable? <br /> All fire rated roofing materials are covered within this UL fire testing was performed with a gap of 5", which is <br /> certification including composition shingle, clay and considered worst case in the standard. Therefore, the <br /> cement tile, metal, and membrane roofs. rating is applicable to any module to roof gap. <br /> What if I have a Class C roof, but the jurisdiction Am I required to install skirting to meet the fire <br /> now requires Class A or B? code? <br /> Generally, older roofs will typically be "grandfathered No, IronRidge achieved a Class Afire rating without any <br /> in", and will not require re-roofing. However, if 50% or additional racking components. <br /> more of the roofing material is replaced for the solar <br /> installation the code requirement will be enforced. <br /> What determines Fire Classification? <br /> Where is the new fire rating requirement code listed? Fire Classification refers to a fire-resistance rating <br /> system for roof covering materials based on their ability <br /> 2012 IBC: 1509.7.2 Fire classification. Rooftop to withstand fire exposure. <br /> mounted photovoltaic systems shall have the same fire <br /> classification as the roof assembly required by Section Class A- effective against severe fire exposure <br /> 1505. Class B-effective against moderate fire exposure <br /> Class C- effective against light fire exposure <br /> Where is a Class A Fire Rating required? <br /> What if the roof covering is not Class A rated? <br /> The general requirement for roofing systems in the IBC <br /> refers to a Class C fire rating. Class A or B is required for The IronRidge Class A rating will not diminish the fire <br /> areas such as Wildland Urban Interface areas (WUI) and rating of the roof, whether Class A, B, or C. <br /> for very high fire severity areas. Many of these areas are <br /> found throughout the western United States. California What tilts is the tilt mount system fire rated for? <br /> has the most Class A and B roof fire rating requirements, <br /> due to wild fire concerns. The tilt mount system is rated for 1 degrees and up and <br /> any roof to module gap, or mounting height. <br /> Are standard mid clamps covered? <br /> Mid clamps and end clamps are considered part of the <br /> PV"system", and are covered in the certification. <br /> More Resources — <br /> Installation Manuals Engineering Certification Letters <br /> Visit our website for manuals that include UL We offer complete engineering resources <br /> Intertek 2703 Listing and Fire Rating Classification. and pre-stamped certification letters. <br /> .__ - ..-...,uge.com __ .., <br /> 01-800-227-9523 for more information.Version 1.20 <br />