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Factory Roof Curb

Factory Curb


Factory Roof Curbs are the most commonly used new construction curbs for HVAC units on flat membrane or built-up roofs. All factory roof curbs come fully assembled with return and supply duct supports, fiberglass as required, fully welded and coated, and gasket material included for airtight RTU installation.


  • Material: 18 Gauge Galvanized Steel
  • Height: 14" Std. / As Required
  • Insulation: 1" 3# density fiberglass (As required)
  • Fully Welded - Mitered corners
  • All welds coated after fabrication
  • Full perimeter 1" x 4" Pressure treated wood nailer
  • Fully assembled with return and supply duct supports.
  • Gasket material included for airtight RTU installation

Aladdin Duct Calculators

To help in getting the right fit, use these Aladdin Duct Calculators:
  • Sheet Metal Duct Calculator
  • Round to Rectangular Duct Converter
  • Rectangular to Round Duct Converter
  • Round to Flat Oval Duct Converter

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