FORTWELL
Collection

Nine systems, one language.

Every product shares the same aluminum platform, detailing and finish range — specified together without visual compromise.

Windows
  • (01)

    100 Fixed Window

    Fortwell 100 Series · ±65 psf · NOA 24-0226.03

    It does not open. The glass is set straight into the frame, so nothing moves and nothing is lost to hardware.Best for: The main view — the large field of glass an elevation is built around.

  • (02)

    86 Fixed Window

    Fortwell 86 Series · ±65 psf · NOA 24-0205.02

    A non-opening lite in the shallowest frame in the collection, so less aluminum shows around the glass.Best for: Smaller fixed openings, transoms and window runs where the detail calls for the thinnest sightline.

  • (03)

    100 Casement Window

    Fortwell 100 Series · ±65 psf · NOA 24-0226.02

    Hinged at the side and cranked outward, pulling shut against a compression seal all the way round.Best for: Rooms that need real airflow without breaking the glass line — kitchens, bedrooms, anywhere facing a breeze.

  • (04)

    86 Awning Window

    Fortwell 86 Series · ±65 psf · NOA 24-0205.04

    Hinged at the top and pushed out at the bottom, so the sash itself acts as a small roof over the opening.Best for: Ventilation that keeps working through a shower — above counters, under fixed glass, in bathrooms.

  • (05)

    150 Project-Out Window

    Fortwell 150 Series · ±70 psf · NOA 23-0731.03

    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.

  • (06)

    86 Horizontal Sliding Window

    Fortwell 86 Series · ±65 psf · NOA 24-0205.03

    The sash rolls sideways on stainless rollers inside the frame — nothing swings into the room or out of the wall.Best for: Openings onto terraces, walkways and tight side yards where a swinging sash would be in the way.

Doors
  • (01)

    100 Sliding Glass Door

    Fortwell 100 Series · ±80 psf · NOA 24-0104.12

    Full-height glass panels roll sideways on stainless rollers; the sill can be recessed so the floor runs straight out.Best for: Turning an elevation into an opening — the living space that continues onto a terrace or pool deck.

  • (02)

    150 Outswing French Door

    Fortwell 150 Series · ±90 psf · NOA 24-0321.03

    One or two hinged leaves swing outward, so wind pressure pushes each leaf harder into its seals.Best for: The door used every day, and the primary egress door on the most exposed side of a coastal house.

Commercial
  • (01)

    150 Storefront System

    Fortwell 150 Series · ±70 psf · NOA 23-0731.02

    A framing grid of mullions and transoms is glazed on site, so a whole facade is built from one repeating section.Best for: Glazed commercial ground floors, lobbies and facades that must match the residential detailing above.

Compare

Every system, side by side.

SystemWhat it doesSeriesOperationDesign PressureThe wind load a unit is tested to hold, in pounds per square foot.Tested SizeU-FactorHow much heat passes through the whole unit — lower is better.STCSound Transmission Class — higher numbers mean a quieter room.
Fixed Window — StandardIt does not open. The glass is set straight into the frame, so nothing moves and nothing is lost to hardware.100Fixed — non-operable±65 psf46" × 86"0.28 – 0.4634 – 40
Fixed Window — Slim FrameA non-opening lite in the shallowest frame in the collection, so less aluminum shows around the glass.86Fixed — non-operable±65 psf36" × 59"0.30 – 0.4833 – 39
CasementHinged at the side and cranked outward, pulling shut against a compression seal all the way round.100Side-hinged, outswing±65 psf32" × 52"0.30 – 0.4832 – 38
AwningHinged at the top and pushed out at the bottom, so the sash itself acts as a small roof over the opening.86Top-hinged, outswing±65 psf59" × 40.5"0.30 – 0.4832 – 38
Project-OutThe sash projects outward on friction hinges, holding wherever it is set, with a narrow throw from the wall.150Projected outswing on friction hinges±70 psf37.375" × 61.625"0.28 – 0.4635 – 41
Horizontal SlidingThe sash rolls sideways on stainless rollers inside the frame — nothing swings into the room or out of the wall.86Horizontal sliding sash on rollers±65 psf63" × 43.5"0.32 – 0.5031 – 37
Sliding Glass DoorFull-height glass panels roll sideways on stainless rollers; the sill can be recessed so the floor runs straight out.100Horizontal sliding panels on stainless rollers±80 psf96" × 99.5"0.34 – 0.5234 – 40
Outswing French DoorOne or two hinged leaves swing outward, so wind pressure pushes each leaf harder into its seals.150Hinged outswing, single or paired leaves±90 psf39.5" × 94.5"0.32 – 0.5035 – 41
StorefrontA framing grid of mullions and transoms is glazed on site, so a whole facade is built from one repeating section.150Fixed framed glazing, front-set captured system±70 psf48.75" × 120"0.36 – 0.5435 – 41
Glossary

The specification terms, in plain language.

Design Pressure
Design pressure (DP) is the wind load, in pounds per square foot, that a unit was tested to withstand without failing. A ± figure covers both wind pushing on the glass and wind pulling away from it. Higher numbers mean a system suited to taller, more exposed elevations.
HVHZ
The High Velocity Hurricane Zone covers Miami-Dade and Broward counties, where the Florida Building Code sets the strictest impact and pressure requirements in the country. Products approved for HVHZ carry a Miami-Dade Notice of Acceptance.
NOA
A Notice of Acceptance is the Miami-Dade County document that lists a product's tested sizes, glass make-ups, pressures and anchorage. It is what an inspector checks against, and every Fortwell system carries a current one.
Impact Rating
Impact testing fires a large missile (a timber section) and small missiles (steel balls) at the glazing, followed by thousands of pressure cycles. Laminated glass may crack, but it must stay in the frame and keep the building envelope closed.
U-Factor
U-factor measures how readily heat flows through the complete assembly of glass and frame, in Btu/h·ft²·°F. Lower numbers mean better insulation and lower cooling loads.
SHGC
Solar Heat Gain Coefficient is the share of the sun's heat admitted through the glazing, from 0 to 1. In Florida a low SHGC keeps interiors cooler; on shaded or north elevations a higher figure is often preferable for daylight.
STC
STC rates how well an assembly blocks airborne sound. Each 10 points is roughly a halving of perceived loudness; laminated impact glass already performs well, and acoustic interlayers add several points more.
Thermal Break
Aluminum conducts heat readily. A thermal break is a low-conductivity polyamide strut set inside the profile that separates the inside face from the outside, cutting heat transfer and condensation.
Air Infiltration
Measured in cubic feet per minute per square foot at a standard test pressure. Lower numbers mean a tighter seal, less dust, and less load on the air conditioning.
Water Resistance
Water penetration resistance is the test pressure, in psf, at which no water passes the unit while rain is sprayed against it under wind load. Higher figures suit exposed and coastal elevations.