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FM Approvals 4473
- Impact Resistance Testing of Rigid Roofing materials by Impacting with Freezer Ice Balls
- standard by FM Approvals, 01/01/2011
- Publisher: FM Approvals
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This test standard states the test requirements and procedures for the assessment of impact resistance of new rigid roofing materials. Rigid roofing materials are manufactured in a rigid configuration and remain rigid during usage. These roof materials are manufactured as tiles or planks from materials such as slate, concrete or clay.
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