Aluminum Thermally Broken Curb Mounted (ATCM) – Operable Electric Spindle

This model consists of a durable, weather resistant, extruded aluminum retaining frame and an extruded thermally broken aluminum heliarc welded base frame. The aluminum base frame is thermally broken, preventing the passage of cold air from the exterior to the interior light shaft. This model is typically used for larger skylights that require additional strength and rigidity.

The ATCM operable skylight is hinged directly to the curb and does not include a two part sash and base. The entire skylight lifts off the curb and is sealed to the curb with a high density foam gasket when closed. This skylight does not include a screen and is primarily used for venting commercial applications.

The Columbia aluminum thermally broken curb mounted skylight is designed to work on any height curb with a nominal 2” width.

Electric spindle operating mechanism»

• The ATCM –E skylight consists of an electric actuator (motor) connected to the skylight and mounts to your curb.
• Must be installed by a certified electrician and requires a 110V power source.
• Includes a three position toggle switch for opening, stationary, and closing positions.

Wide range of glazing options in both glass and acrylic»

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.

Suitable for all falt or sloped roof applications»

• 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.

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

See Why Skylights – What Size section for additional information.

Any size skylight available»

• Glass available in 34 standard sizes from 16” x 16” to 48” x 48”
• Acrylic and polycarbonate available in 71 standard sizes from 16” x 16” to 96” x 96”.
• Any custom size in glass or acrylic also available. Example – inside curb rough opening 17 ¾” x 56 ½”.

Exterior frame finishes – Four standard colours»

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

Flashing system»

• 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

Large capacity four sided condensation channel»

• 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

Warranty»

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

See Warranty section for additional information.