The hail standard ul 2218 essentially encompasses four different sized metal balls being dropped from different heights to simulate hail more or less.
Ul 2218 class 4 metal roofing.
Ul standard ul 2218 edition 2 impact resistance of prepared roof covering materials edition date.
A class 4 roof covering receives the highest premium credit.
Of insurance web site.
Delta building products ltd.
Class iv roofing systems include many different types of roofing materials not just asphalt shingles such as tile metal or synthetic roofing.
Hail qualification ul2218 class 4 excerpt from texas dept.
We have installed class 4 shingles for many of our customers in recent years.
Installing ul 2218 class iv impact resistant shingles on a home has been proven to protect the roof from wind and hail damage.
604 953 1000 aluminum shingle tile shake panels class 4 steel shingles tiles shake panels class 4 click the link below to view the delta building products.
As you contact various contractors or suppliers you should ask about roofing materials that meet ul standard 2218.
These are all terms used for roofing systems that have exceeded the standards of the test ul 2218 that is performed by underwriters laboratories.
This simulation is achieved by taking a 1 25 2 inch steel ball and dropping it from a height of 12 feet above the panel.
Ul provides the knowledge and expertise to help consumers make informed decisions on products that affect their daily lives.
I have installed in accordance with the manufacturer s specifications on the above described residence a roof covering listed as complying with underwriters laboratory standard 2218 impact standard for impact resi.
Ul developed a test to rate the strength of roofing materials called the ul 2218 impact rating which is the test that determines if a roofing material is class 1 2 3 or 4.
Ul 2218 standard for impact resistance of prepared roof covering materials 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.
This test is called the ul 2218 impact rating.
Underwriters laboratories ul is a not for profit independent testing organization that was founded in 1894.
Class 1 class 2 class 3 class 4.
A class 4 rating means the panel did not crack when struck twice in the same location by the 2 inch steel ball.
January 25 2010 ansi approved.
Stance of prepared roof covering materials with an impact resistance classification of.
Ul developed a test to rate the strength of roofing materials.
The list of approved laboratories is shown below.
Roof coverings that have passed the ul standard 2218 test are classified as either class 1 2 3 or 4.