Prefabricated Curbs

An economic, convenient alternative to site-built curbs

Most common applications:

  • Commercial curb-mounted daylighting applications
  • Jobs with a tight deadline
  • Structural or non-structural roof components

Key benefits:

  • Reduce installation time and costs
  • Eliminates unnecessary delays such as missing parts and field assembly issues
  • Choose steel (CCA6 or CCA3) or sheet aluminum (CCAW) construction
  • Offer structural and non-structural design, depending on model

Prefabricated curb

Tools and Guides

Product Details

  • CCA3/CCA6
    VELUX Curb CCA3
    CCA3
    Insulation Factory Insulated
    Material Double wall, Galvanized steel
    Finish Mill exterior, Primed white exterior
    Thickness 1.5”
    Available Heights 9”, 12”, 16”, 18”, 24"
    Exterior Metal Gauge 14 ga, 18 ga
    Interior Metal Gauge 20 ga
    Shipping Info Direct to customer, curb ships separate
    Safety Security Mesh Standard
    Available Sizes 18 standard Dynamic Dome sizes
    VELUX Curb CCA6
    CCA6
    Insulation Not Insulated
    Material Single wall, Galvanized steel
    Finish Mill exterior, Primed white exterior
    Thickness 1.5”
    Available Heights 9”, 12”, 14", 16”
    Exterior Metal Gauge 14 ga, 18 ga
    Interior Metal Gauge N/A
    Shipping Info Direct to customer, curb ships separate
    Safety Security Mesh Standard
    Available Sizes 18 standard Dynamic Dome sizes
  • CCAW
    The CCAW section
    • Installs above roof deck
    • Thermally broken sheet aluminum
    • Interior aluminum liners painted white
    • 1-1/2″ rigid insulation
    • Standard 9", 12″ or 16″ curb height
    • HS adhesive clamping at corners
    • 2×2 wood nailer
    • R-value 5.8
    A CCAW cross section graphic