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Technical Product Information

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Insulated Glass Products

At PFG Glass, we provide insulated glass for both Commercial and Residential customers with our two state of the art, fully automated IG lines.  We offer protective film, and multiple glass options which include Cardinal Low E coatings and Neat+ options.  All of our insulated glass products are IGCC (Insulating Glass Certification Council) certified and all of our washers use treated water.

Our insulated glass product lines.

All insulated glass products for residential purposes are racked in order and come with end tags for easy identification. We also ensure that all glass pieces are individually strapped and that a rack list is attached, making it easier for you to find exactly what you are looking for.

For Commercial applications, PFG has multiple delivery and racking options including a large versatile fleet of trucks, several with cranes, for delivering glass products right to your shop or jobsite.

PFG Glass has two fully automated IG Lines:


Our Lisec insulated glass line is able to provide units in a range of sizes (9″ x 14″ min and 96″ x 148″ max) and come with a vacuum chamber argon fill. This line of insulated glass products is created using an automatic T-Spacer application with PIB applied to the unit and is available with either a silicone or hotmelt secondary seal.


Our Forel insulated glass line produces products in a variety of different sizes, ranging from 9″ x 14″ to 78″ x 158″. The Forel line comes with a vacuum chamber for argon or krypton fill. Sealed units are available with your choice of SuperSpacer or TriSeal spacer, which will be applied on the line.

Edge seal options.

We offer two different edge sealing options for our customers to choose from:

Dow 982 Silicone Edge Seal

Dow 982 is a two-part silicone seal that has excellent unprimed adhesion to glass and metal substrates. This type of edge seal cures to form a durable, long-lasting high-modulus, flexible, weather-tight bond. Dow 982 products meet both the ASTM C-1369 specification for structurally glazed insulated glass units and the ASTM E-2190 specification, which is a requirement of NFRC 706 certification.

Fenzi Hotver A+ Hot Melt Edge Seal

Fenzi Hotver A+ is a thermoplastic hot applied sealant that boasts a fast setting time of 30 minutes, allowing for quick racking and delivery. This type of edge seal is completely solvent free, and any surplus of the product can be re-warmed and used again. Compared to other kinds of edge seals, Fenzi Hotver A+ offers the lowest moisture vapour transmission rate (MVTR) and will outperform competitors in gas retention.

Insulated glass spacers.

We offer two different spacer options:


SuperSpacer is an extruded thermoset polymer structural silicone spacer that is integrally incorporated with desiccants. While the shape of the polymer material is set during heat curing and cannot be reshaped through reheating, it is able to retain its flexibility over a wide temperature range and always returns to its original cured shape. This silicone formula exhibits excellent resistance to ozone, sunlight, and oxidation and has excellent colour stability.

Some of the main benefits of SuperSpacer include:

  • Multilayer vapour barrier
  • Acrylic adhesive primary seal for cleaner sightlines and the best aesthetics
  • Acrylic adhesion has excellent UV stability and elevated temperature resistance
  • Superior argon retention
  • Lowest U-factor
  • Highest condensation resistance
  • Noise reduction up to 2 Db
  • Warmest edge among dual-seal systems
  • Reduces risks of mould formation on the frames
  • Contact surfaces are less cold and more comfortable
  • Environmental benefits with lower CO2 emissions

SuperSpacer has met the following global standards:

  • North America E2188/E2189/E2190
  • European CGSB 12.8
  • ASTM E330 (120* psf positive, 155* psf negative)
  • French Standard CSTB for CEKAL
  • Passive House phA+ certificate for Arctic climate
  • Industry type P-1 testing

Get all of the architectural details about the SuperSpacer system.

TriSeal (T-Spacer SuperSpacer)

In addition to offering all of the same benefits and meeting the same standards as SuperSpacers, TriSeals provide an inner acrylic adhesive seal for immediate unit handling and come complete with a polyisobutylene (PIB) captive system. This type of edge seal is suitable for SSG applications and can be used with a silicone edge seal. TriSeal features a flexible design that significantly reduces edge seal stress over rigid spacer systems and is able to compensate for common glazing stresses, including wind loads, snow loads, driving rain, and widely fluctuating temperatures.  TriSeal passes the toughest industry tests and contributes to LEED certified projects.

Download the Triseal brochure.

Frequently Asked Questions About Insulated Glass Products

What is Insulated Glass?

Insulated glass units (IGUs) are two or more panes of glass that are separated with a spacer and sealed at the edges to form a single unit. This type of glazing helps reduce heat loss, glare, noise pollution, and damage from UV light. In British Columbia, IGUs are usually filled with an inert gas such as argon for even better insulation, making them a critical building material for modern energy-efficient buildings.

What are the benefits of Insulated Glass?

Insulated glass is an important investment that can have a major impact on the energy efficiency of any building. Not all IGUs are created the same. Sealant, spacer, low-e glass coatings, and number of glass lites makes a big difference in energy efficiency.
All IGUs help to reduce heat loss in winter and keep cool air inside during the summer, leading to more consistent indoor temperatures all year round. This can result in lower cooling and heating bills, while also cutting down on the amount of energy wasted by a building. Additionally, insulated glass can limit noise pollution from outside sources, making it beneficial for those living in noisy environments.

What are Insulated Glass Spacers?

Insulating glass spacers are an important component of double-or triple-IG windows. They provide an insulating air space between two lites of glass and ensure an optimal seal to attain maximum efficiency in terms of cooling in the summer and heating in the winter. Spacers are manufactured or assembled in conjunction with desiccant and are designed to absorb any moisture that may accumulate, preventing it from reaching the vision area, fogging the unit, and causing failure. Spacers typically consist of metal or warm edge foam technology like the Super Spacer structural silicone, warm edge spacer system. Super Spacer robotically-applied spacers ensures long-term durability and proven structural integrity. Super Spacer reduces sealant stress, maximizes heat flow resistance, improves glass surface temperature, and enhances condensation resistance.

What is Low Emissivity Glass?

Low Emissivity (or Low-E) glass is a type of energy efficient window glass treated with nearly invisible, microscopically thin coatings of metallic oxide to reduce the amount of energy and light transferred through it. In winter, the coating on low-e glass reflects heat back into the building, while reducing the transfer of cool air from outside. This can help regulate interior temperatures, leading to improved comfort in a home or office building, as well as reduced heating and cooling costs. And because low-e coatings block a substantial portion of ultraviolet (UV) light and infrared (IR) light, they also protect furniture and fabrics from fading over time due to exposure to sunlight.

What are Surface Numbers?

Each glass lite in an insulating glass unit consists of two surfaces. These surfaces are numbered beginning from the outside glass surface (#1) and finishing with the inside glass surface (usually #2 or #4).

Product Resources

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