Monolithic (Smooth) Acrylic

Thermally Broken Aluminum Framed Skylight

The thermally broken frame extrusion is designed with an open cavity in the mid section of the frame that runs the entire length of the frame. This open cavity is filled (poured) with a high strength, long lasting, non-thermally conductive epoxy. After the epoxy cures the aluminum is milled away on the bottom of the frame just below the epoxy (debridged). When the process is finished there is a complete separation of the exterior aluminum frame exposed to temperatures on the outside of the building and the interior frame exposed to interior temperatures and humidity. 

Poured and debridged thermal breaks have been used in window and skylight frames for many years and continue to be the most effective design in minimizing exterior temperature transfer to the interior building space and in the elimination of condensation.

Feature List

  • Monolithic acrylic glazing offers competitive lighting and thermal perfomance values.
  • Bubble shaped dome
  • Thermally broken extruded aluminum frame to minimise condensate build up
  • AAMA compliant poured and debridged frame
  • Corrosion resistant fasteners

Product Data Sheet

Monolithic Acrylic Unit Skylight PDS

AL | ALB | ALT | ALI | ALIB | ALIT Product Data Sheet


CAD Drawings
PDF Drawings

Curb Mounted Single Dome Thermally Broken Skylight

Bristol ALT CM 1 (DWG)

Curb Mounted Double Dome Thermally Broken Skylight

Bristol ALT CM 2 (DWG)

Curb Mounted Single Dome Thermally Broken Skylight

Bristol ALT CM 1 (PDF)

Curb Mounted Double Dome Thermally Broken Skylight

Bristol ALT CM 2 (PDF)

Who We Are Brochure

Bristol 086200 Master Format CSI Specification (DOC)

Product Information

Frame Material      Aluminum     
Dome Material Monolithic acrylic
Width Up to 60"
Length  Up to 120"
Visible Light Transmittance*  
Single Dome - Clear 95%
Single Dome - White 53%
Single Dome - Grey 27%
Single Dome - Bronze 27%
Double Dome - Clear/Clear 92%
Double Dome - White/Clear 49%
Double Dome - Grey/Clear 25%
Double Dome - Bronze/Clear 25%
Solar Heat Gain Coefficiency*  
Single Dome - Clear 0.79
Single Dome - White 0.68
Single Dome - Grey 0.50
Single Dome - Bronze 0.53
Double Dome - Clear/Clear 0.89
Double Dome - White/Clear 0.63
Double Dome - Grey/Clear 0.43
Double Dome - Bronze/Clear 0.44
U-Factor / R-Value*  
Single Dome - Clear 1.02 / 1.01
Single Dome - White 1.02 / 1.01
Single Dome - Grey 1.02 / 1.01
Single Dome - Bronze 1.02 / 1.01
Double Dome - Clear/Clear 0.56 / 1.79
Double Dome - White/Clear 0.56 / 1.79
Double Dome - Grey/Clear 0.56 / 1.79
Double Dome - Bronze/Clear 0.56 / 1.79

*Values may vary slightly depending on unit size and specifications.

Testing & Approval

Test Results
AAMA WDMA/CSA 101/I.S.2/A440-08 & WDMA/CSA 101/I.S.2/A440-05
IECC 2015 Meets without controls climate zone 1, meets with controls climate zones 2-8 (double glazed skylight)
NFPA CC2 Rated / Class A Plastic Performance
NFRC Certified (double glazed skylight)


Kingspan Light + Air daylighting products have been used on every continent in the world bar one under extreme climatic conditions and are manufactured from the highest quality materials, using state of the art production equipment to rigorous quality control standards, ensuring long-term reliability and service life.
  • 10 year standard material workmanship warranty*
​* Contact Kingspan for more information regarding our terms and conditions and optional warranty programs.

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Kingspan Light + Air

Kingspan Light + Air LLC

28662 North Ballard Drive

Lake Forest, IL 60045

+1 (888) 719 0810