FCM - Fixed Skylight

Curb Mounted

Benefits of FCM skylights

  • Maintenance free frame
  • No designated top, bottom or sides - can be installed in any direction
  • White laminated glass available for applications where diffused lighting is required 
  • Factory installed blinds available

Installation Instructions for FCM Skylights

Skylight sizes for FCM skylights

FCM Size Code
1430
1446
2222
2230
2234
2246
2270
3030
3046
3434
3446
4646
Inside curb (W"xH") 141⁄2 x
301⁄2		 141⁄2 x
461⁄2		 221⁄2 x
221⁄2		 221⁄2 x
301⁄2		 221⁄2 x
341⁄2		 221⁄2 x
461⁄2		 221⁄2 x
701⁄2		 301⁄2 x
301⁄2		 301⁄2 x
461⁄2		 341⁄2 x
341⁄2		 341⁄2 x
461⁄2		 461⁄2 x
461⁄2
Outside curb (W"xH") 171⁄2 x
331⁄2		 171⁄2 x
491⁄2		 251⁄2 x
251⁄2		 251⁄2 x
331⁄2		 251⁄2 x
371⁄2		 251⁄2 x
491⁄2		 251⁄2 x
731⁄2		 331⁄2 x
331⁄2		 331⁄2 x
491⁄2		 371⁄2 x
371⁄2		 371⁄2 x
491⁄2		 491⁄2 x
491⁄2
Maximum skylight clearance (W"xH") 185⁄8 x
345⁄8		 185⁄8 x
505⁄8		 265⁄8 x
265⁄8		 265⁄8 x
345⁄8		 265⁄8 x
385⁄8		 265⁄8 x
505⁄8		 265⁄8 x
735⁄8		 345⁄8 x
345⁄8		 345⁄8 x
505⁄8		 385⁄8 x
385⁄8		 385⁄8 x
505⁄8		 505⁄8 x
505⁄8


Flashing systems for FCM skylights

Description Roofing material Roof pitch Product code
Step flashing w/
adhesive underlayment		 Asphalt shingles,
wood shakes and flat tile		 10°-60° ECL 0000C
High profile flashing w/
adhesive underlayment		 Tile 14°-60° ECW 0000C


Installing a skylight is easier with the Instant Light Shaft

The Instant Light Shaft is faster, cleaner, more efficient and cost-effective than traditional drywall installation. It can be installed in an hour versus 20 hours over 3 days - it's that easy!

• Works on all "box" type, 90° light shafts (no flare).

• 16" standard depth (trim to actual on site).

• All other pieces are pre-cut to size to be site assembled.

• 4" minimum spacing required around all sides if multiple skylights are installed

Enhance with blinds

Blinds of various colors and styles
are available across all traditional 
skylight families

More info