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Glass & Glazing Insights

Practical guides on IGUs, safety glass, energy performance, and supply for Ontario buyers.

Glass office tower at dusk with lit vision glass on each floor and dark opaque spandrel bands between the floors

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Spandrel Glass: The Panels Between the Floors

Spandrel glass hides slab edges, columns, and insulation behind a glass facade. Here is what it does, how it is made opaque, and what to put on your RFQ.

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Low sun streaming through a floor-to-ceiling glass wall into a dark room with a polished concrete floor

U-Value vs SHGC: How to Read a Window's Energy Numbers

U-value is how much heat a window loses; SHGC is how much sun it lets in. How to read both and spec the right glass for each side of an Ontario building.

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Sheets of clear glass in increasing thickness lit from the side, with edges turning greener as the glass gets thicker

Glass Thickness Explained: 3 mm to 12 mm, and Why Thick Glass Looks Green

How to choose glass thickness for windows, doors, and storefronts, what drives the decision, and why the edge of thicker glass turns green.

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Sealed insulated glass units showing their multi-pane edges with warm-edge spacer bars and sealant bands

Insulated Glass Units in Ontario: A Buyer's Guide

What Ontario window manufacturers, contractors, and homeowners should know before ordering insulated glass units: configurations, coatings, spacers, lead times.

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Edge-on macro of a multi-pane insulated glass unit showing parallel glass layers separated by sealed cavities

Triple vs Quad Glazing: When Does the Fourth Pane Pay Off?

Triple glazing is becoming the Ontario standard. Quad glazing goes further. Here is how to decide which configuration your project actually needs.

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Low-E coated window pane showing a faint iridescent sheen in low winter sunlight

What Is Low-E Glass and Why Does Every Spec Call for It?

Low-emissivity coatings are the most cost-effective performance upgrade in glazing. Here is how they work and when to specify them.

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Close-up of an insulated glass unit corner showing the exposed warm-edge spacer between the sealed panes

Warm-Edge Spacers Explained: The Quiet Spec That Decides IGU Lifespan

The spacer is the most overlooked component in an insulated glass unit. Here is why warm-edge technology matters and what NAGC uses.

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Tempered glass crumbled into blunt granular pieces beside laminated glass held intact by its interlayer

Tempered vs Laminated Glass: Picking the Right Safety Glass

Both are safety glass, but they fail very differently. Here is how to choose between tempered and laminated glass for your application.

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Commercial glass curtain wall tower beside a residential home with large triple-glazed windows

Commercial vs Residential Glazing: What Changes and What Doesn't

One fabrication shop can serve a curtain wall and a kitchen window, but the specs differ. How commercial and residential glazing requirements diverge.

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Finished insulated glass units in shipping racks staged beside a loading dock with a delivery truck

Glass Lead Times in Ontario: Why 5 to 7 Days Beats a Cheaper Quote

For window manufacturers, the glass supplier's lead time is part of the production line. Here is how to evaluate lead time as a spec.

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