UL 2218

Click to enlarge $130.00

Add to Cart:

NOTE: Our website provide PDF immediately download,sometimes when you purchased can't online download please contact us,we will send the document to you with email.

NOTE: in order to view PDFs you will need to have the FREE AdobeĀ® ReaderĀ® installed, click the ""

UL 2218

Impact Resistance of Prepared Roof Covering Materials
Edition: 2nd
Underwriters Laboratories / 25-Jan-2010 / 14 pages

1.1 This test method provides impact resistance data for the evaluation of prepared roof covering materials. For purposes of this Standard prepared roof covering materials are considered to be small units, sheets or panels designed for installation with multiple layers of such materials installed in overlapping rows normally on inclines exceeding 25 percent.

1.2 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.

1.3 This test method does not evaluate the effect of weathering, temperature, aging or similar effects on the impact resistance of prepared roof covering materials. 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.

1.4 The impact energies used in this Standard were derived from impact energies of actual hailstones (see Appendix a). However, largely due to the effects discussed in 1.3, there is no currently established direct correlation between the performance of roof covering materials when impacted by hailstones versus steel balls. Consequently, this test method does not provide a direct basis to compare expected performance under all hail conditions, but does provide a basis for comparison of the response of roof coverings when subjected to the impact energies described herein.

Featured Products: ASME BPVC-2015 , ASME B31.3-2014 , AWS D1.1/D1.1M-2015 , ASME B31.1-2014 , ASME A17.1-2013 , ASME B16.34-2013 , ASME B16.5-2013 , ASME B31.9-2014 , API STD 650-2014 , API STD 1104-2014 , ISO 9001-2015 , BS PD 5500-2015

Recommend Products

UL 2737

UL Subject 6141

UL 1042

UL 248-1

UL 1492

UL 1482

UL 1662

UL 813