A considered choice.
A better everyday.
The glass package influences how a room feels as much as how a window looks. A sunny front room, a shaded bedroom and a busy street frontage can call for different priorities. Begin with the comfort problem you want to solve, then compare the complete window.
GreenOn Homes helps Ontario homeowners consider double and triple pane glazing alongside the frame, opening style and installation. Our interactive cross-section below shows where the panes, sealed chambers and edge spacer sit.
Double pane or triple pane?
Double pane glazing has two sheets of glass with one sealed space between them. Triple pane adds a third sheet and a second space. The additional layer can improve thermal performance, but the result depends on the entire assembly, coatings and gas fill.
Ask for the ratings of the actual window being quoted. Compare the price difference against your room conditions and priorities rather than choosing by pane count alone. Triple glazing also adds weight, so the supporting sash and hardware must be designed for it.
What Low-E, argon and the spacer do
A Low-E coating on a glass surface helps control radiant heat transfer. Argon is a gas that can fill the sealed chamber between panes. The spacer separates the panes around their perimeter; a warm-edge system such as Super Spacer addresses heat transfer at that edge.
These components work together. Ask which coating, gas fill and spacer are included in the proposed unit, and how that specification appears on your order. A cutaway illustrates the arrangement; it does not replace the specifications for your chosen product.
Read the ratings in the context of your room
A lower U-factor indicates less heat transfer through the product. Solar heat gain coefficient describes how much solar heat passes through it. Canada’s Energy Rating considers several performance factors together. Compare like-for-like product ratings instead of the glass alone.
Tell your consultant about afternoon glare, cold seating areas, condensation and existing shades. The right balance of daylight and solar gain depends on orientation and room use. New glazing cannot by itself correct excessive indoor humidity or every source of a draft.
Make the glass choice part of the quote
Record pane count, coating, gas fill, privacy treatment and any required safety glazing before ordering. If noise is a major concern, describe the sound source and ask about evidence for the proposed assembly; an extra pane alone is not a soundproofing guarantee.
Bring photographs and note which rooms feel uncomfortable and when. We can discuss glass alongside opening style, frame condition and finishing work, so the window replacement quote addresses the whole opening.
Bring the details.
We’ll help with the decisions.
Visit us at 75 Fernstaff Ct #10 in Concord, or tell us about your project. We serve the GTA and selected Southern Ontario communities.
Plan your project- Identify hot, cold or noisy rooms.
- Compare complete-window ratings.
- Confirm pane count, coating, gas and spacer.
- Discuss privacy and safety-glass needs.
- Record installation and finishing scope.
Common questions
Is triple pane always the best choice?
It can offer improved thermal performance, but the right choice depends on the actual window ratings, budget, room exposure and product configuration. Compare the complete quoted assemblies.
Can argon be seen between the panes?
No. Argon is a colourless gas within the sealed chamber. Its presence and specification should be confirmed through the product documentation, not by appearance.
Will new glass eliminate condensation?
Better thermal performance can help keep interior glass warmer, but condensation also depends on indoor humidity, ventilation and outdoor temperature. Persistent moisture needs an assessment of those conditions.
