Vinyl Curb Mount (OVCM) – Operable Manual

The most popular residential venting curb mounted skylight. This model consists of a durable, weather resistant, extruded aluminum retaining frame and an extruded two piece fusion welded vinyl (PVC) sash and base frame. The vinyl frames are thermally broken, preventing the passage of cold air from the exterior to the interior light shaft.

The Columbia venting vinyl curb mount skylight is designed to work on any height curb with a nominal. Curb width cannot exceed 1.75”  

Operating mechanism»

Removable insect screen»

Wide range of glazing options in both glass and acrylic»

Suitable for all flat or sloped roof applications»

Standard sizes include a full range of models for homes designed with 16” and 24” on centre rafters or trusses.»

Any size skylight available»

Energy Star®»

Exterior frame finishes – four standard colours»

Flashing system»

Interior frame finish including drywall return»

Large capacity four sided condensation channel»


  • The OVCM Vinyl Curb Mount skylight is easily opened and closed manually with standard crank handle.
  • The handle may be replaced with adapter to use in conjunction with telescoping extension poles. Available in 4-6’ and 6-10’ lengths.

  • Pre installed with white aluminum frame to match vinyl base and light shaft.
  • Spring loaded pins allow for easy removal and installation.

a. Glass

  • Clear
  • LoE³ Clear
  • LoE³ Neat
  • LoE³ Triple Glazed
  • LoE³ Bronze
  • Solar Reflective Bronze
  • Heat Mirror 44
  • Laminated option

All above standard tempered / tempered sealed units.

Each option available with interior pane in laminated – clear or white.

Any other glass option, including grey, blue, green etc in plain or coated glass is available.

b. Acrylic

  • Clear
  • Bronze
  • White

All above available in single, double, or triple glazed.

c. Polycarbonate

  • Clear
  • Bronze
  • White

All above available in single, double, or triple glazed.

See Glazing section for additional information.

  • Glass – Installs on roofs with minimum 2:12 slope (15 degrees)
  • Acrylic – Installs on flat or sloped roofs
  • Polycarbonate – Installs on flat or sloped roofs.

See Roof types and slopes section for additional information.

See Why Skylights – What Size section for additional information.

  • Glass available in 22 standard sizes from 16”x16” to 48”x48”
  • Acrylic and polycarbonate available in 22 standard sizes from 16”x16” to 48”x48”
  • Any custom size in glass or acrylic also available. Example – inside curb rough opening 17¾” x 37¾”

  • The OVCM skylight depending on glass glazing option meet Energy Star requirements in different Canadian climactic zones.

See Energy Star section for additional information.

  • Standard frame colour – Rideau Brown
  • Optional frame colours – Black, White, Sandalwood
  • Custom coloured frames also available

  • Flashing kits available for sloped applications only
  • Suitable for shingles and other low profile roofing materials
  • Use in conjunction with underlayment for superior seal
  • Custom flashings are required for flat roofs and other roofing materials

  • White vinyl base frame matches interior light shaft
  • Built in drywall return to provide easy and clean finishing

  • Weep holes allow any condensation build up to drain to the outside roof
  • Allows for multi directional installation of skylight. Direction must be specified when ordering.
  • Eliminates water stains on your interior light shaft

  • Comprehensive 20 year warranty on insulated glass, and 10 years on skylight parts.

See Warranty section for additional information.