• Some stock photographs may show options that are not included. Please check product description.
Tamko

Thunderstorm Grey Stormfighter Flex Class 4 Shingle Bundle

Mfg.#
CLASS 4
Sku#
3901469
  • Deep blacks and dark greys blend together forming a stormy mix of dark and light. A dynamic choice for any roof that refuses to be ignored, Thunderstorm Grey is one of the most confident colors under the sky.
  • Class 4 impact rating - which may qualify for homeowner insurance discounts (Insurance discounts may not be available in your area where available, insurance discounts may vary contact your insurance provider for information)
  • Expanded nailing zone: clearly defined 1-1/2-inch
  • Reinforced backing - polyester mat reinforcing the entire width of the shingle, including the nailing zone and the common bond
  • Enhanced sealant: polymer-modified sealant specifically designed to be sticky, even in cooler weather

* Estimated stock levels as of Sun, Mar 15, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

The BEST all-weather performance shingle on the market, powered by TAMKO's proprietary ForceFX™ polymer technology. It qualifies as a UL2218 Class 4 impact rating shingle, engineered to resist and recover from impact. The unique poly?fabric layer anchors nails into the expanded 1-1/2-inch Rapid Fire Zone nailing zone for our fastest, easiest installation and the WindGUARD Warranty boasts a high wind warranty up to 160 mph with only 4 nails installed in the well-defined wide nailing zone, when installed in accordance with StormFighter IR's Application Instructions.

Nominal information shown within this product line.

Specifications

General

Algae Resistance 10-year algae cleaning limited warranty
Collection Stormfighter Flex4 IR
Color Thunderstorm Grey
Color Family Black / Gray
Coverage 30.76 sq ft
Exposure Size 5.625 in
Fire Rating Class A
Material Asphalt
Shingles Per Bundle 20
Type Architectural Shingle
Wind Rating 160 mph

Dimensions

Length 39.375 in
Size 3.05 bundles cover 100 sq ft
Thickness 3 in
Weight 68 lbs per bundle
Width 13.25 in

Manufacturing Details
The following information is subject to change without notice

Manufacturer Warranty Limited Lifetime
Prop 65 Warning Warning WARNING: Cancer and Reproduction Harm www.P65Warnings.ca.gov/product - www.p65warnings.ca.gov
Shop USA Yes

Label Information

Certification, Codes, Standards Class 4 (UL2218), Class A Fire (UL 790)

Please choose a store for pricing and availability.

Find Your Local Store
Feedback