Gannon Roofing Supply is proud to announce that we are now stocking four colors of Certainteed's Landmark Special line in our Cedar Rapids location.  

The Landmark Special offers a 50-year limited, transferrable warranty with a 90 mph wind warranty upgradable to 130mph.  More impressively, this shingle offers a great value for a UL 2218 Class 4 impact resistant rating.  May insurance companies will offer discounts for installing Class 4 impact resistant roofing on your home!

Save money on your home insurance, and get a great roof value with the Landmark Special line, available for pickup or delivery today in our Cedar Rapids location, and with just a few days' notice from our Des Moines location.


* Because of differences in computer monitors, represented colors may not match true colors.  Please see your Gannon Roofing Supply representative for samples before selecting a color


Landmark Special
Type Warranty Stock Colors
Impact-resistant Laminate
  • 50-year limited
  • 5-year SureStartTM (100% replacement and labor costs due to manufacturing defects)
  • 5-year 90 mph wind resistance upgradeable to 130 mph

Burnt Sienna

Colonial Slate

Moire Black

Weathered Wood