Circular Units

Curb Mount Model DDCCM:

These double dome circular curb mount units have been updated to today’s specifications by incorporating our CS vinyl curb with a rolled aluminum retainer. These structural improvements reduce condensation and increase thermal performance by eliminating the need for weep holes.

Tested to compliance with AAMA\WDMA\CSA\101\I.S.2\A440 as required by the International Building Code.

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  • Standard Sizes
  • Glazes and Finishes
  • Installation
  • Safety Considerations
Curb Mount (DDCCM) Outside Dimension of Curb
DDCCM–36 34”
DDCCM–48 46”
DDCCM–60 57”
DDCCM–72 70”
DDCCM–84 82”
DDCCM–96 94”

Custom sizes are not available.

Glazing Options


  • Clear
  • #2412 Bronze
  • #2447 White
  • Satin Sky


  • Clear
  • #2447 White

Finish Options

Frame finish is PVC, white interior and bronze exterior. Aluminum retainer frame.

Retainer Finish:

  • Mill (Standard)
  • Anodized, Kynar 500, Baked Enamel (more information)
  • Copper Clad


Curb Mount
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Construction Video: Circular Curbs

Safety ConsiderationsWasco skylights are designed to withstand normal elements of the weather. They are not designed to withstand human impact or falling objects. These skylights should not be walked upon under any circumstances. The owner or designer should restrict access only to authorized personnel who have been adequately cautioned as to the location of the skylights and informed of the warning above, or said owner should provide protective guard rails or screens around the skylights.