UL 2218A:2019

$78.65

Impact Resistance of Roofing Systems

Published By	Publication Date	Number of Pages
UL	2019-08-02	14

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Category: UL

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Description

UL 2218A

1 Scope

1.1 This test method provides impact resistance data for the evaluation of low slope roofing systems. For purposes of this standard, roofing systems consist of various component materials installed on combustible or noncombustible decking.

1.2 Impact resistance testing for the evaluation of prepared roof covering materials are covered under UL 2218, Impact Resistance of Prepared Roof Covering Materials.

1.3 The test evaluates the effect of impact from the steel ball at locations on the assembly selected to be most vulnerable, such as (but not limited to) edges, corners, unsupported sections and joints.

1.4 This test method does not evaluate the effect of weathering, temperature, aging or similar effects on the impact resistance of roofing system components. These and other factors, including time, roof slope, roof system configuration and application influence the performance of roofing materials in the field. It is not the objective of this test to address all of these factors.

Additional information