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Thermal Frame Window Wall Series 3800-T

By baualu

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We designed the Series 3800-T fixed window-wall system as an alternative to commercial storefront. Designers and building professionals appreciate the sleek lines and scale of commercial storefront BUT prefer factory built systems because of the many benefits listed below. The Series 3800-T provides the sightline benefits of storefront with all the advantages of a factory built product.

The Series 3800-T is an adaptable product that offers everything from a simple fixed window to transoms, to elaborate grid window-walls with operable window inserts. The Series 3800-T is an ideal complement to any of our door products and is a wise choice over commercial storefront. We have provided a few comparative items below.

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Product Highlights

Enhancing Design

Crisp, Linear Shapes:

Fleetwood’s design focus is the opposite of mass production. A prime example is the sharp edges and crisp lines created by a balance of hand tooling, automation, and dedicated machining.

Heavy Walls:

It does not take a professional to realize the hidden engineering in each Fleetwood system. The aluminum wall thickness greatly exceeds most, if not all other windows. Any user will immediately experience its sturdiness and palpable luxury.

Steel Window Look:

The Series 3800-T is offered with a simulated divided lite which resembles a classic steel window beveled design. This allows the “Steel Look” without the inherent complications and limitations of steel products.

More Glass:
Fleetwood’s Series 3800-T offers a 1-7/16” perimeter sightline, compared to a typical 2” frame for commercial storefront systems.


Superior Characteristics

Thermal Conductivity:

Aluminum is thermally stable in that it does not swell or shrink when the temperature or humidity levels change. Very little energy is lost through the frame material but in the case of wood and vinyl, energy is lost through the frame and vent seams after years of expansion and contraction.

Window Inserts:

A unique quality of the Series 3800-T is the option for operable window inserts. While, field-fabricated storefront can surface mount vents, creating a larger sightline and visible caulk joint. Fleetwood’s inserts are designed to dive into the frame, which reduces lines and metal.

Leak Prevention:

To assist builders with a waterproof installation we offer an integral nail-on fin as part of the frame. Other window manufacturers attach a separate add-on fin. This short cut can cause water leak issues years down the road.

Low Maintenance:
While every lifestyle product requires upkeep, Fleetwood products are resilient in even the extreme environments and come with a Lifetime Warranty.

Series 3800-T vs. Storefront


Fleetwood products comes with a Lifetime Warranty. Storefront is literally assembled on the jobsite and therefore does not have a factory warranty. Any “warranty” is provided by the installer.

Luxury Home Design:

The Series 3800-T was exclusively designed for luxury homes whereas storefront is designed for retail strip centers.

Quality Control:

Since storefront is built on the jobsite, the quality is dependent on the worker assembling the window and the quality of tools available to them. Fleetwood windows are made in controlled environments with dedicated Quality Control Engineers and Managers during every step of the manufacturing process.

More Metal:

Storefront relies on the installer to stuff rubber into all the seams, which results in uneven sightlines and gaps. The Series 3800-T comes factory glazed with unique glass stop sizes that conform to the glass instead of needing pushed-in vinyl that will curl and bleach.


Energy, Noise & Security

High Efficiency Glass:

Modern glazing from Fleetwood coupled with increasingly efficient insulation techniques allows a minimalist design with huge glass that does not compromise energy consumption.

Thermal Break Technology:

Fleetwood products with a “T” in the series number are manufactured with thermally broken aluminum for condensation control and energy efficiency. For over 30 years, Fleetwood has designed products around this now sweeping practice and does so with extensive testing and engineering so the product maintains the look for the ultimate minimalist.

Security Benefits:

Fleetwood endeavors to make products better instead of cheaper, resulting in specialty products that other manufacturers should not attempt. High-security laminated glass (like your car windshield) coupled with robust Fleetwood framing can withstand severe impact.

Noise Control:
Fleetwood chooses to offer a wide range of options instead of limiting features to increase profit and simplify production. Sound dampening upgrades to glass and products are available without affecting the budget or design.



Product Features


Standard Features

Stock Anodized Finish: Black (Class 1) or Clear (Class 1)

1” Insulated Glass with Dark Bronze Spacer
6063 T-6 Extruded Aluminum
Poured & De-bridged Thermal Barrier

4-1/2″ Deep Nail-on Frame
Stainless Steel Assembly Screws
1/2″ Height Aluminum Sill Pan

Equal Sized Glass
Exterior Snap-in Glazing (Square Profile)


Optional Features

(See CAD Details for more options)
Finish: 70% Kynar Paint and 50% if Black or Dark Bronze, Class 1
Custom Anodize (Light Bronze & Medium Bronze)
Glazing: 9/16″, 1-1/4″ & 1-1/2″
Tiered Stop

4-1/2″ Deep Equal Leg (Block) Frame
Unequal Size Glass (TDL Alignment)
Steel Look SDL



Hardware Page




Max Panel Width & Height

Max Panel Width: Determined by site wind loads
Max Panel Height: Determined by site wind loads

Products specifications