Fixed Flat Roof Skylights

The VELUX Fixed Flat Roof Skylight is designed for homes with flat or low-pitch roofs to transform and improve virtually any space with daylight.

The ISU top cover with CurveTech glass lets in more daylight, easily drains rainwater, and stands out externally as a modern addition to roof surfaces.

  • 0° - 15° Roof pitch
  • Deck-mounted
  • Tempered glass top cover is virtually scratch-proof, providing a durable layer of protection
  • Insulated PVC Frame
  • CFU fixed base unit with laminated glass for added safety, sound control, and thermal protection

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  • 1
    ISD cover with CurveTech tempered glass
    Innovative curve shape lets rainwater easily drain off, ensuring clearer sky views and more daylight, even on 0°-pitched roofs. 
  • 2
    Insulated PVC curb and two-layer pane
    An ideal combination of insulating PVC frame and double-paned, low-energy inner glass ensures heat doesn’t escape, so your ideal indoor climate is maintained.
  • 3
    Maintenance-free design
    The curved glass shape provides natural drainage of rainwater – no need to regularly clean the surface – while toughened glass makes it virtually impervious to damage from the elements.
  • 4
    Thermal Values
    The values are obtained in accordance with NFRC procedures.


    U-factor = 0.30
    SHGC = 0.42
    Visible Transmittance (Vt) = 0.58

Sizes

CFP Size Code
006060

006090
 008080
 009090
 090120
 100100
 100150
 120120
 150150
Rough Opening
(W"x H")		 23 5/8
x 
23 5/8		  23 5/8
x
35 7/16		 31 1/2
x
31 1/2		 35 7/16
x
35 7/16		 35 7/16
x
47 1/4		 39 3/8
x
39 3/8		 39 3/8
x
59		 47 1/4
x
47 1/4		 59
x
59
Exterior frame
(W"x H")		 30 11/16 x
30 11/16		 30 11/16 x
42 1/2 		 38 9/16 x
38 9/16		 42 1/2
x
42 1/2		 42 1/2
x
54 5/16		 46 7/16
x
46 7/16		 46 7/16
x
66 1/8

54 5/16
x
54 5/16

 66 1/8
x
66 1/8