Class 4 Impact Resistance

The Highest Impact Rating Available

When Mother Nature lashes out, you shouldn’t have to worry about your roof weathering the storm. Atlas StormMaster® shingles are designed to resist the harshest weather conditions including high wind, pounding rain and destructive hail. StormMaster® shingles are made with a rubberized polymer, styrene-butadiene-styrene (SBS), specifically designed to make the shingles flexible, strong and durable. SBS modified asphalt shingles deliver unique benefits like superior impact, wind and water resistance.

During the manufacturing process, the SBS bonds to other raw materials in the shingle, creating an elastic network that behaves like rubber, allowing it to flex when impacted. StormMaster Shake & Slate Class 4 Impact rated shingles from Atlas are not warranted against hail, but they will better resist the damaging impact that comes with hail when compared to standard asphalt shingles.

In addition to impact-resistance, StormMaster® shingles feature Scotchgard™ Protector from 3M, which helps prevent the appearance of black streaks caused by algae. Additionally, StormMaster shingles are built with HP Technology, featuring a 130 mph wind limited warranty.

Hail Is A Problem

Average asphalt shingles without impact resistance may break or fracture during a hailstorm, exposing the roof to moisture penetration. This allows water to soak the roof deck, causing wood rot and leaks inside your home. Even if hail damage does not break through the back of the shingle and cause leaks, the impact from these icy stones can leave your roof looking beat up and ugly.

Atlas Shingles Pass the UL2218 Impact Rating Test

Atlas Shingles With Class 4 Impact Rating Diagram

The UL 2218 Class 4 Impact Rating test simulates the damaging impact of a 2“ size hail stone. The test drops a 2“ steel ball onto the shingle twice in the same spot and the shingle cannot exhibit any signs of fracture, breaking of the glass mat, or significant granule loss. Because of the unique nature of SBS modified asphalt, Atlas StormMaster Shake and Slate pass this test and brings a more flexible & durable shingle tot he marketplace. Atlas StormMaster® shingles with UL 2218 Class 4 impact rating resist hail, leaving the underlayment, roof deck and home leak free.

Atlas Shingles With Class 4 Impact Rating Diagram Key

Ask your insurance agent about potential discounts on your homeowners insurance premiums when you install UL 2218 Class 4 Impact rated StormMaster® shingles.

Impact Resistant Shingles Featuring SBS Technology

Click The Chart To Learn More About Each Products Features

	Style	Colors	Limited Warranty*	Impact Resistance	Algae Resistance ^↑	Wind Resistance
StormMaster ^® Shake	Architechtural	9 Colors	Lifetime	Class 4 UL 2218	Scotchgard™ Protector	130 mph
StormMaster ^® Slate	Slate	6 Colors	Lifetime	Class 4 UL 2218	Scotchgard™ Protector	130 mph