All materials
Impact-Resistant Shingles (Class 4)
Class 4 impact-rated shingles are engineered for hail and high-wind regions like Alabama. Most carriers offer a measurable premium discount on Class 4 roofs — sometimes 10-30% on the wind/hail portion. If you've had one hail claim already, this is the conversation to have.
Lifespan30-50 yrs
Cost tier$$$$
WeightMedium
Best forHomes with prior hail claims, second-storm risk, anyone wanting an insurance discount
✓ What's good
The pros.
- Class 4 UL 2218 impact rating — highest available
- Most AL carriers discount premiums (verify with yours)
- Same install footprint as standard architectural
- Polymer-modified asphalt — more flexibility, less cracking
! Honest trade-offs
The cons.
- Premium over standard architectural (often 15-25%)
- Discount varies by carrier — not universal
- Same lifespan as architectural in most lines
Manufacturers for impact-resistant.
The names we trust on the trailer. Have a preference? Tell us and we'll spec it.
GAF Armorshield II
Owens Corning Duration Storm
CertainTeed NorthGate
Atlas StormMaster Shake
How impact-resistant
goes on a Birmingham home.
Step-by-step. Most jobs run 1-3 days on the roof depending on size, pitch, and weather.
01
Same tear-off and deck inspection as architectural
02
Ice and water shield at valleys and penetrations
03
Synthetic underlayment, 6-nail high-wind pattern
04
Class 4 shingles per manufacturer install spec
05
Manufacturer documentation submitted to carrier for discount
06
Ridge, hip, flashings, boots
07
Provide Class 4 certificate for your insurance file