Estate Collection Egress Openings

 

Please contact your local building department to confirm minimum requirements.

For unequal vents please contact CGI.

 

Estate Series 360 Single Hung Window Clear Opening Formulas for Egress:

Flange Frame Equal Lites:

  • Flange Frame Clear Opening Width =  (Flange Frame Width – 5.6875)  This number must be at least 20”
  • Flange Frame Clear Opening Height = (Flange Frame Height – 10.5) / 2 This number must be at least 24”
  • Clear Opening Square= (Flange Frame Clear Opening Width X Flange Frame Clear Opening Height) / 144 This number must be at least 5.0

 

Estate Series 375 XO Horizontal Rolling Window Clear Opening Formulas for Egress:

Equal Leg Equal Vents WITHOUT waterbar:

  • Equal Leg Frame Clear Opening Width =  (Equal Leg Frame Width / 2) – 3.5 This number must be at least 20”
  • Equal Leg Frame Clear Opening Height = (Equal Leg Frame Height – 5.125) This number must be at least 24”
  • Clear Opening Square= (Equal Leg Frame Clear Opening Width X Equal Leg Frame Clear Opening Height) / 144 This number must be at least 5.0

Equal Leg Equal Vents WITH waterbar:

  • Equal Leg Frame Clear Opening Width =  (Equal Leg Frame Width / 2) – 3.5 This number must be at least 20”
  • Equal Leg Frame Clear Opening Height = (Equal Leg Frame Height – 5.875) This number must be at least 24”
  • Clear Opening Square= (Equal Leg Frame Clear Opening Width X Equal Leg Frame Clear Opening Height) / 144 This number must be at least 5.0

Flange Frame Equal Vents WITHOUT waterbar:

  • Flange Frame Clear Opening Width =  (Flange Frame Width / 2) – 4 This number must be at least 20”
  • Flange Frame Clear Opening Height = (Flange Frame Height – 6.125) This number must be at least 24”
  • Clear Opening Square= (Flange Frame Clear Opening Width X Flange Frame Clear Opening Height) / 144 This number must be at least 5.0

Flange Frame Equal Vents WITH waterbar:

  • Flange Frame Clear Opening Width =  (Flange Frame Width / 2) – 4  This number must be at least 20”
  • Flange Frame Clear Opening Height = (Flange Frame Height – 6.875) This number must be at least 24”
  • Clear Opening Square= (Flange Frame Clear Opening Width X Flange Frame Clear Opening Height) / 144 This number must be at least 5.0

 

Estate Series 375 XOX Horizontal Rolling Window Clear Opening Formulas for Egress:

Equal Leg Equal Vents WITHOUT waterbar:

  • Equal Leg Frame Clear Opening Width =  (Equal Leg Frame Width / 3) – 4.1875  This number must be at least 20”
  • Equal Leg Frame Clear Opening Height = (Equal Leg Frame Height – 5.125) This number must be at least 24”
  • Clear Opening Square= (Equal Leg Frame Clear Opening Width X Equal Leg Frame Clear Opening Height) / 144 This number must be at least 5.0

Equal Leg Equal Vents WITH waterbar:

  • Equal Leg Frame Clear Opening Width =  (Equal Leg Frame Width / 3) – 4.1875  This number must be at least 20”
  • Equal Leg Frame Clear Opening Height = (Equal Leg Frame Height – 5.875) This number must be at least 24”
  • Clear Opening Square= (Equal Leg Frame Clear Opening Width X Equal Leg Frame Clear Opening Height) / 144 This number must be at least 5.0

 

Flange Frame Equal Vents WITHOUT waterbar:

  • Flange Frame Clear Opening Width =  (Flange Frame Width / 3) – 4.5  This number must be at least 20”
  • Flange Frame Clear Opening Height = (Flange Frame Height – 6.125) This number must be at least 24”
  • Clear Opening Square= (Flange Frame Clear Opening Width X Flange Frame Clear Opening Height) / 144 This number must be at least 5.0

Flange Frame Equal Vents WITH waterbar:

  • Flange Frame Clear Opening Width =  (Flange Frame Width / 3) – 4.5  This number must be at least 20”
  • Flange Frame Clear Opening Height = (Flange Frame Height – 6.875) This number must be at least 24”
  • Clear Opening Square= (Flange Frame Clear Opening Width X Flange Frame Clear Opening Height) / 144 This number must be at least 5.0

 

 

Estate Series 238 Casement Window Clear Opening Formulas for Egress:

Equal Leg

  • Equal Leg Frame Clear Opening Width =  (Equal Leg Frame Width – 6.1875)  This number must be at least 20”
  • Equal Leg Frame Clear Opening Height = (Equal Leg Frame Height– 5.375) This number must be at least 24”
  • Clear Opening Square= (Equal Leg Frame Clear Opening Width X Equal Leg Frame Clear Opening Height) / 144 This number must be at least 5.0

Flange Frame

  • Flange Frame Clear Opening Width =  (Flange Frame Width – 6.6875)  This number must be at least 20”
  • Flange Frame Clear Opening Height = (Flange Frame Height  – 5.875) This number must be at least 24”
  • Clear Opening Square= (Flange Frame Clear Opening Width X Flange Frame Clear Opening Height) / 144 This number must be at least 5.0
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