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Product Declarations

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Performance and energy efficiency

Understand how glass can influence a building's energy and acoustic performance.

Applications of glass

Whether you need glass for facades, interiors, homes, or specific applications, we have a solution

Which glass is right

See how the right glass can help improve your quality of life and the beauty of your home

Understand glass

Learn more about glass and what you can do with it

Design with glass

There’s almost no limit to what you can create with glass

Build with glass

Glass is the ultimate building element, and can be tailored to each project

Glass for your home

We’re helping glass inspire more homes than ever before

7 St. Thomas

Curved glass contributes to harmony between Victorian and contemporary design

Midlands Technical College Library

When glass helps to create a comfortable learning environment

ARO - 242 West 53rd Street

Floor to ceiling windows provide light, transparency and sweeping views of Central Park

All our projects

From landmark construction projects to innovative residential builds, this is how our glass can make the difference

Our story

Just as we were in 1932, we're ready to meet the challenges of now and the future


Find out more about how glass can support sustainable design

Quality control

We strive for quality in everything we do

Our company

Learn more about who we are

Help and contact

Our expertise and commitments

Glass Analytics

Access our comprehensive suite of engineering and analytical tools

BIM objects

Download and use our standardized Guardian BIM content to create project specific BIM files

Seminars and online learning

For anyone who is interested in learning more about glass and its use



A corporate commitment
to the environment

Guardian Glass is committed to the efficient use of natural resources while operating in a way that protects the safety, health and well-being of its employees, customers, the environment and society.

As a manufacturing leader of high performance, energy-efficient glass products for commercial, residential, interior, transportation and specialty applications, Guardian Glass makes products that help improve people’s lives. By allowing abundant natural light into homes, offices and vehicles, glass products can help contribute to occupants’ well-being.

Guardian EPDs

An Environmental Product Declaration (EPD) is a verified and registered document that communicates transparent  information about the life-cycle environmental impact of a product. 

Guardian EPDs are developed specific to the region where the glass is manufactured. By publishing EPDs, Guardian supports architects and designers who strive to understand the sustainability profiles of the buildings they design through the products they specify. The goal is to provide them with the information needed to achieve credits in global green building rating systems, such as LEED® and BREEAM®. Two EPDs are available from Guardian Glass North America. For Guardian Glass products manufactured in Europe, please refer to the Guardian Europe webpage for a listing of European EPDs.

Flat Glass Products EPD

The Guardian Flat Glass Products EPD, which is valid for all flat unprocessed glass products produced in North America. The products covered by this EPD include unprocessed clear glass and tinted glass such as Guardian UltraClear® low-iron glass, green glass, CrystalGray® glass and SMG®. The EPD contains a complete listing of all products covered.

Processed Glass Products EPD

The Guardian Processed Glass Products EPD is valid for sputter-coated, heat-treated and textured glass products produced in North America. The products covered by this EPD include Guardian SunGuard® architectural glass, ClimaGuard® residential glass, InGlass® interior glass and more. The EPD contains a complete listing of all products covered.

Industry-wide EPD for Flat Glass

Contributing lifecycle data from seven float plants in North America, Guardian's participation in the Industry-wide EPD demonstrates our commitment to responsible stewardship of environmental resources and sustainability. Through transparent contribution of environmental impacts, Guardian enables society to better understand sustainable qualities of flat glass.


UL Product Lens™

Guardian Glass is the first float glass manufacturer to offer UL Product Lens™ certification, covering three global product categories: Uncoated Float Glass, Sputter (Vacuum) Coated Float glass (including Commercial SunGuard® and residential ClimaGuard® products) and UltraMirror™ products.