MATERIAL PERFORMANCE
Designed for projects where architecture and performance need to work together. Fiberglass combines structural strength, thermal performance and clean sightlines for custom homes, major renovations and high-performance residential construction.
STRENGTH — Supports demanding window configurations and larger openings.
STABILITY — Maintains dimensional stability through changing temperatures.
THERMAL PERFORMANCE — Lower thermal conductivity than aluminum framing.
DESIGN FLEXIBILITY — Suitable for traditional, contemporary and high-performance architecture.
ONTARIO WEATHER
Fiberglass pairs with advanced glazing and weather seals for Ontario’s extremes.
WINTER
Cold temperatures + heat retention
SUMMER
Heat + solar exposure
WIND
Air and water resistance
YEAR-ROUND
Frame stability + durability
SPECIFICATION
FIBERGLASS
VINYL
ALUMINUM
STRUCTURAL STRENGTH
High
Moderate
Very high
THERMAL PERFORMANCE
Strong
Good value
Requires thermal break
FRAME STABILITY
Excellent
Good
Excellent
BEST APPLICATIONS
Custom, high-performance, large openings
Renovation projects with budget-led priorities
Commercial + narrow architectural profiles
Fiberglass balances strength, stability and thermal performance for custom projects.
HIGH-PERFORMANCE BUILDING
High-performance homes demand a complete system. SILEX supports energy-efficient and Passive House projects.
BUILDING ENVELOPE PRIORITIES
Frame performance
Glazing performance
Air tightness
Thermal bridging
Solar heat gain
Installation detailing
PRODUCT CERTIFICATIONS
Custom Home Fiberglass Window Installation
Canada
Fiberglass windows bring lasting durability, energy efficiency and contemporary style to this custom-built residential home.
Fiberglass
View Project
Institutional Healthcare Fiberglass Window Project
Canada
Fiberglass windows bring natural light, energy efficiency and lasting durability to this modern institutional healthcare facility.
Fiberglass
View Project
Best where opening size, design and thermal performance matter.
Particularly worth considering for
Custom homes
Major renovations
Custom large openings
Contemporary architecture
Cottage and waterfront homes
High-performance homes
Passive House projects
Architect-designed additions
Clear explanations to help you understand how we work and what to expect.