Comparison Guide
Insulated Garage Door
Insulated Garage Door
vs
Non-Insulated Garage Door
In Canadian climates, the decision between an insulated and non-insulated garage door has significant implications for energy efficiency, comfort, noise, and long-term durability.
| Feature | Insulated Garage Door | Non-Insulated Garage Door |
|---|---|---|
| Temperature Impact | Keeps garage 10–20°C warmer in winter | Garage temperature equals outdoor temperature |
| Energy Savings | Reduces home heating costs by 10–20% (attached garages) | No energy benefit — heat escapes through the uninsulated door |
| Noise | Significantly quieter — insulation dampens vibration and road noise | Loud — thin steel panels amplify vibration and sound |
| Durability | Stronger — polyurethane-bonded panels resist dents better | Weaker — single-layer steel dents easily |
| Price | $1,200–$3,500 installed | $600–$1,200 installed |
| Weight | Heavier — may need ½ HP or ¾ HP opener | Lighter — ½ HP opener is sufficient |
| R-Value | R-6 to R-18 depending on insulation type | R-0 (no insulation value) |
🏆 The Verdict
For any home in Canada with an attached garage, an insulated door is a must. The energy savings alone typically pay for the upgrade within 3–5 years. Even for detached garages, the improved durability and noise reduction make insulated doors the better long-term value.
Comparison FAQ
Frequently Asked Questions
Can I add insulation to my existing non-insulated door?
Retrofit insulation kits are available (typically polystyrene panels that adhere to the inside of each panel), but they provide only R-4 to R-6 — far less than a factory-insulated door (R-12 to R-18). Retrofit kits also add weight, which may require spring adjustment. For Canadian climates, factory-insulated doors are strongly preferred.
What R-value do I need in Canada?
For attached garages: R-12 minimum, R-16 recommended. For heated garages or workshops: R-16 to R-18. For detached garages: R-8 to R-12 is sufficient. For extreme cold regions (Prairies, Northern Ontario): R-16 to R-18 strongly recommended.