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Fiberglass Windows

Why Fiberglass?

Detail of Accurate Dorwin Fiberglass Window with Cross-Section
1
Strong, dimensional stable, low thermal conductivity fiberglass – foam filled for maximum energy efficiency and warmth.
2
Slim sightlines, expanded viewing area with precise frame and sash joinery, sealed for lasting performance.
3
Enduring paint finish in 14 standard colours with split finish and custom colour capability.
4
Santoprene™ rubber weatherseals – air and watertight to low temperatures.
5
Tripane Window Power Glass featuring Tri-Seal™ warm edge spacers – reduced condensation and lasting performance.
6
Truth™ dual arm roto hardware for smooth, long-lasting operation.
7
Wide variety of exterior trims for the perfect fit.
8
Interior trims in your choice of white composite vinyl, oak and fir jamb extensions.

Santoprene™ Weatherseals

Santoprene™ rubber weatherseals make our windows airtight and watertight across a range of extreme temperatures

Maximum Energy Efficiency

Pultruded Fiberglass is our material of choice for windows, meaning they have a much lower thermal conductivity than other materials. This combined with our insulated frames and sashes, results in some of the most energy efficient windows in the world.

Strength, Durability, & Stability

Pultruded Fiberglass is the strongest of all window materials. Fiberglass is eight times stronger than PVC, over three times stronger than wood composites, and 20% stronger than aluminum.

Our windows use thick-wall vinyl that is multi-chambered with fusion welded joints. Durable, sturdy and air and watertight sealing means windows won’t bend, warp, discolour, corrode, rust, fade or deteriorate under any conditions.

3. Custom Colour Capabilities

Enduring paint finishes are available in 14 standard colours with split finish and custom colour capability.

5. Tri-Seal™ Edge Spacers

Tripane Window Power Glass featuring Tri-Seal™ warm edge spacers reduce condensation and provide lasting performance.

6. Dual Arm Hardware

Truth™ dual arm roto hardware provides smooth, long-lasting operation.

7. Perfect Fit Trims

A wide variety of exterior trims provide the perfect fit.

8. Your Choice of Trims

Interior trims come in your choice of white composite vinyl, oak, and fir jamb extensions.

Thoughtful Trims

A generous selection of exterior trims to help you out with various wall details and design consideration – solutions for improved performance fit and finish details.

Exterior Trims

Interior Trims

Applied white composite vinyl, oak & fir jamb extensions and 1/2”, 5/8” or 3/4” applied returns to allow you to finish your design application.

triseal window detail
1
Smooth black matte finish, thermoset structural silicone – NO metal with integral desiccant.
2
Thick-wall vinyl, multi-chambered with fusion welded joints – durable, sturdy and air and watertight.
3
Enduring paint finish in 14 standard colours with split finish and custom colour capability.
4
Santoprene™ rubber weatherseals – air and watertight to low temperatures.
5
Tripane Window Power Glass featuring Tri-Seal™ warm edge spacers – reduced condensation and lasting performance.
tri-seal window detail
1
Smooth black matte finish, thermoset structural silicone – NO metal with integral desiccant.
2
Thick-wall vinyl, multi-chambered with fusion welded joints – durable, sturdy and air and watertight.
3
Enduring paint finish in 14 standard colours with split finish and custom colour capability.
4
Santoprene™ rubber weatherseals – air and watertight to low temperatures.
5
Tripane Window Power Glass featuring Tri-Seal™ warm edge spacers – reduced condensation and lasting performance.

1. Smooth Black Matte Finish

Smooth black matte finish, thermoset structural silicone – NO metal with integral desiccant.

2. Triple-Seal Longevity

Thick-wall vinyl, multi-chambered with fusion welded joints – durable, sturdy and air and watertight.

3. Structural Perimeter

Enduring paint finish in 14 standard colours with split finish and custom colour capability.

4. Pressure Sensitive Adhesive

Santoprene™ rubber weatherseals – air and watertight to low temperatures.

5. Proprietary Vapour Barrier

Tripane Window Power Glass featuring Tri-Seal™ warm edge spacers – reduced condensation and lasting performance.

Form Factors

awning window

Awning Windows

Awning windows are the only window style that helps to keep the rain out while allowing fresh air in. They hinge at the top to open at the bottom.

casement window

Casement Windows

Casement windows hinge at the jamb, opening up to 90º. These windows provide any space with optimal air ventilation.

horizontal window

Horizontal Windows

Horizontal Slider windows provide a fiberglass upgrade with dual or tri-pane glass, and tilt and slide features, for easy cleaning.

single-hung window

Single-Hung Windows

Single-Hung windows feature a fixed top lite with an interior tilt and slide bottom sash, providing a classic look to a building or home.

picture window

Picture Windows

Picture windows are almost fully glass with a narrow profile frame, providing ample natural light, unobstructed views, as well as water and thermal performance.

Enduring Colours

15 standard colours – great selection of on-trend darker tones and traditional window and door shades – Split finish and custom colours are also available.

Warranty

Learn about the exceptional coverage our Residential Warranty provides for your new windows.