FORTWELL
FORTWELL 150 projected window units in a tall glazed elevation
Fortwell 150 Series — Project-Out
Fortwell 150 Series · Windows

Project-Out

The sash projects outward on friction hinges, holding wherever it is set, with a narrow throw from the wall.

Best for: Tall and exposed elevations — high-rise and commercial openings where a wide swing is not acceptable.

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Overview

The 150 Series is the structural end of the collection, and the project-out window carries its highest design pressure among the operable types. The sash projects out on friction hinges for controlled ventilation with a narrow throw, which suits high-rise and commercial elevations where a wide swing is not acceptable.

Design PressureThe wind load a unit is tested to hold, in pounds per square foot.
±70 psf
U-FactorHow much heat passes through the whole unit — lower is better.
0.28 – 0.46
STCSound Transmission Class — higher numbers mean a quieter room.
35 – 41
Impact RatingLarge and Small Missile Impact — resistance to windborne debris.
Large & Small Missile
Tested Size
37.375" × 61.625"

Is this the right system?

Choose it when

  • The elevation carries high wind exposure
  • A wide-swinging sash would be a hazard
  • The vent sits inside a larger glazed field

Consider instead

  • Casement — if it is a residential opening at low level.

Pairs with

Configurations

  • Single projected

    One projected sash in a stand-alone frame.

  • Projected with fixed

    Operable sash combined with fixed lites in one frame.

  • Curtain-wall infill

    Vent unit set within a larger glazed field.

Glazing

  • Impact Laminated (standard)

    Heat-strengthened lites with a structural interlayer. Large and Small Missile Impact, HVHZ approved.

  • Low-E Insulated

    Insulating unit with a solar-control coating to reduce heat gain without dimming the view.

  • Acoustic Laminated

    Thicker interlayer tuned for airport, highway and dense urban sites.

  • Tinted & Reflective

    Grey, bronze and blue-green body tints, or a reflective coating for west-facing elevations.

Finishes

  • Class I Anodized

    Clear, champagne, medium bronze and black — a hard, integral finish for coastal exposure.

  • Architectural Powder Coat

    AAMA 2604 polyester finish in the standard Fortwell range, including matte black and warm grey.

  • Custom RAL

    Any RAL or custom-matched colour to project specification, minimum quantities apply.

Performance & Construction

Operation
Projected outswing on friction hinges
Frame depth
4" (150 Series)
Sightline
3" frame and sash stack
Thermal break
Polyamide strut thermal break sized for the 150 structural section.
Hardware
Multi-point lock with stainless friction hinges and limit stops.
Screens
Interior-mounted mesh screen.
Design pressure
±70 psf
Air infiltration
≤ 0.05 cfm/ft²
Water resistance
15 psf
U-factor
0.28 – 0.46
SHGC
0.20 – 0.55
STC
35 – 41
Tested glass
5/16" HS + 0.09" SentryGlas + 5/16" HS
Max tested size
37.375" × 61.625"

Applications

  • HVHZ
  • High-rise
  • Commercial
  • Coastal

Documents

  • Miami-Dade NOA 23-0731.03Notice of Acceptance — valid through July 2029
  • Specification sheetSizes, sections and performance data — PDF · on request
  • CAD detailsHead, jamb and sill details — DWG · on request
  • Installation guideAnchorage, flashing and sealant sequence — PDF · on request
  • WarrantyLimited warranty terms — read online

Related Systems

Next step

Confirm the approval and the sizesNOA numbers, design pressures, tested sizes and glass.Continue

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