Roofing Directory

Materials / Synthetic Shake

Synthetic Shake

UL 2218 Class 4

Molded polymer shingles engineered to replicate the look of split cedar shake at lower weight and maintenance. Frequently rated UL 2218 Class 4 and Class A fire without the rot, insect, or combustibility concerns of real wood.

Category family
synthetic
Typical lifespan
40–50 years
Typical wind resistance
rated to 110-115 mph on many products
Typical fire rating
Class A
Max impact class
UL 2218 Class 4
Weight per square
200–350 lbs
Cost band
$$$
Slope suitability
steep
Typical warranty
40–50 years
Pros
  • authentic cedar-shake appearance
  • many products are UL 2218 Class 4 and Class A fire
  • no rot, insects, or fire risk of natural wood
  • light enough for standard structures
Cons
  • premium over asphalt
  • appearance and performance vary by manufacturer
  • shorter track record than natural materials
Colorado notes
  • hail_performance: Class 4 composite shakes are a common impact-resistant upgrade in Colorado
  • altitude_uv: engineered UV inhibitors resist fading under high-altitude sun

Related guides

Asphalt vs. Metal vs. Tile Wind & Fire Ratings New Roof Cost Class 4 Impact-Resistant Shingles

Sources