Your doorglass can be part of an ENERGY STAR-approved entry door system, depending on the options selected. Check with your advisors to see if your selection of products (door, window frame and doorglass) is ENERGY STAR certified.
Here’s some useful information and advice on energy efficiency to help you make an informed decision when choosing a door.
The measurement of energy efficiency in an exterior door is slightly different from that of a window. Whether a door receives Energy Star certification or not is based on the new regulations that went into effect in January 2020 and depends on the glazed surface and model of the door. Discuss it with your Portes et Fenêtres Verdun representative.
The secret to good energy efficiency in an exterior door lies in the way it’s assembled, in accordance with the manufacturing process used at the factory. First, the frame is assembled, followed by the panels. Next, the door is weather-proofed, caulked, outfitted with weather-stripping and then tested to make sure that everything is in compliance with regulations. If the door has a window, the window must also be of superior quality.
Whether the door you purchase is Energy Star-certified or not, it will automatically lose all of its advantages if it isn’t properly installed. If the door isn’t perfectly straight, if there isn’t enough urethane insulation around the edges or if the door sweep and weather-stripping don’t fit snugly, the door can let in drafts, resulting in significant heat loss. That’s why it’s absolutely essential to have it installed by a professional.
| Product | Maximum U-factor W/m2 (Btu/h*pi2*F) | OU | Minimum energy performance (EP) |
| Doors and windows | 1.22 (0.21) | 34 |
Minimum values for meeting the new Energy Star requirements.
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