Impact Resistant Ul 2218 Standard Roofing Material

Mother nature in 1996 the institute of business and home safety ibhs and the underwriter s laboratory ul developed the ul 2218 classification a national standard for roof impact resistance by rating materials from class 1 through 4 based on their 3 resistance to the steel ball simulation test. The industry guideline ul 2218 exists to test a metal panel s resistance to puncturing or failing when it comes into contact with items such as hail or other small debris. Impact resistance testing for the evaluation of low slope roofing systems are covered under ul 2218a impact resistance of roofing systems.

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Reaffirmation and continuance of the second edition of the standard for safety for impact resistance of prepared roof covering materials ul 2218 as an american national standard.

Impact resistant ul 2218 standard roofing material.

Class 4 roof covering is the most impact resistant roof and receives the highest premium discount. Miami dade product control acceptance. Back in the mid 1990s after a series of catastrophic hail storms across the u s the roofing industry developed a test to evaluate their products resistance to impact. Roof coverings that have passed the ul standard 2218 test are classified as either class 1 2 3 or 4.

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. Ul certified to meet astm d3462. The following is being proposed. A class 4 roof covering receives the highest premium credit.

Ul 2218 class 4 rating. Ul class a fire resistance. Approved laboratory roof class location. Ul class 1 2 3 and 4 tx only ul and fm class 3 and 4 all other states.

This standardized test is known as the underwriters laboratory 2218 ul 2218 and is also nicknamed the steel ball test based on the results of this test ul assigns one of four ratings to a shingle with class 4 being the highest possible rating. Ul 2218 class 4 impact resistant hip and ridge shingles march 18 2015 results of recent testing have shown malarkey roofing products 10 225 and 12 227 hip ridge stripsmeet the ul 2218 class 4 impact resistant standard the highest rating possible. Conforms to csa standard a123 5. Roof coverings that have passed the ul standard 2218 test are classified by ul as either class 1 2 3 or 4.

A class 4 rating is the toughest. Ul 2218 standard for impact resistance of prepared roof covering materials. The list of approved laboratories is shown below. Please see the notice of acceptance noa to determine approved products by manufacturing location.

The ul 2218 classification set a standard for roof impact resistance whereby materials were rated on their resistance to impacts with steel balls simulating 90 mph hailstones of various sizes. As you contact various contractors or suppliers you should ask about roofing materials that meet ul standard 2218.