If you live in a hail prone area consider impact resistant shingles which have a ul 2218 class 4 rating.
Roof ul type class 2.
This test is called the ul 2218 impact rating.
Impact resistant shingles may qualify for a discount on your homeowner s premium.
A complete new edition of an existing standard or outline.
Ul provides the knowledge and expertise to help consumers make informed decisions on products that affect their daily lives.
Underwriters laboratory ul standard 2218 is a test method for evaluating impact resistance.
Update of the ul1703.
Roof coverings that have passed the ul standard 2218 test are classified as either class 1 2 3 or 4.
Meet can ulc s126 can ulc s101 and can ulc s107.
Class 4 roof covering is the most impact resistant roof and receives the highest premium discount.
Class c roofs are those that are effective against light fire test exposure.
An electronic document associated with a ul standard for safety or outline of investigation and issued by ul to propose.
Class c roof assemblies and roof coverings shall be listed and identified as class c by an approved testing agency.
Use pv systems that have been tested and listed for class a class b or class c fire rating per the most recent version of ul 1703 2002 edition with revisions through october 2013 module typing for fire classification the new ul 1703 fire classification developed a system of typing pv modules.
A revision of a single or multiple requirement s.
The list of approved laboratories is shown below.
Ul developed a test to rate the strength of roofing materials.
If a pv rack with a type 1 module achieves a class a fire rating the installer can use any other type 1 module and retain the fire classification.
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.
To better evaluate a solar pv system for fire performance an update of the ul1703 was required.
A class 4 roof covering receives the highest premium credit.
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.
Using this method of typing a module manufacturer can list their module as a specific type for purposes of listing to the new ul 1703 fire classification.
Roof coverings that have passed the ul standard 2218 test are classified by ul as either class 1 2 3 or 4.
Impacts on asphalt shingles e g from hail can damage them.
Astm c1289 type ii class 1 grade 2 20 psi or grade 3 25 psi can ulc s704 type 2 class 3 or type 3 class 3.
