Ul 3 Roof

When tested to ul 2218 shingles can achieve an impact resistance rating from class 1 through 4 with a class 4 rating being the highest and best.

Ul 3 roof. Underwriters laboratory ul standard 2218 is a test method for evaluating impact resistance. Section 1504 3 of the 2009 international building code requires roof systems with built up modified bitumen fully adhered or mechanically attached single ply through fastened metal panel roof systems and other types of membrane roof coverings to be tested in accordance with ul 580 ul 1897 or fm4474. Roof coverings that have passed the ul standard 2218 test are classified by ul as either class 1 2 3 or 4. Rapid rise fire test fire resistance designs for protecting structural members subject to petrochemical exposure fires are investigated according to ansi ul 1709 rapid rise fire tests of protection materials for structural steel and are covered under fire resistance ratings ansi ul 1709 bybu.

Impacts on asphalt shingles e g from hail can damage them. Click here for roof assemblies and. Ul provides the knowledge and expertise to help consumers make informed decisions on products that affect their daily lives. For roof slopes greater than 4 12 the roof deck must be covered with a minimum of one layer of underlayment as described in sections 7 2 and 7 3 of this report.

The ul certification mark on roofing products and assemblies is relied on by code enforcement officials and buyers to verify that your products and systems meet regulatory requirements. Understanding the ul directory 3 1. Roof coverings that have passed the ul standard 2218 test are classified as either class 1 2 3 or 4. A class 4 roof covering receives the highest premium credit.

A secure online source for increased visibility into your ul project files product information documents samples and services. A class 3 roof is earned if the sample does not crack when hit twice in the same spot by a 1 75 inch. It also requires through fastened. Roof coverings must be tested and approved by underwriters laboratories ul or factory mutual fm and be rated as a class 1 2 3 or 4.

Certification database ul product iq. It also serves as a key differentiator for products within the roofing market. As you contact various contractors or suppliers you should ask about roofing materials that meet ul standard 2218. 3 1 4 lwc fluted.

For roof slopes between 2 12 and 4 12 two layers of the underlayment described in section 7 2.