Insights > Category > Posted: 2025-Jan-15, Updated: 2025-Jan-15

Swinging patio doors & the effect of cold Winter days

Swinging patio doors are a beautiful and functional addition to any home, but winter can bring unique challenges that affect their performance and durability. From drafts to ice buildup, understanding these issues and how to address them is essential for maintaining comfort and energy efficiency during the colder months.

Discover the typical winter challenges concerning swinging patio doors and learn practical tips to keep them in excellent shape throughout the season.

1. Drafts and heat loss

Over time swinging patio doors wear and tear on their seals and weatherstripping can lead to gaps between the door and the frame. These gaps cause uncomfortable drafts and significant heat loss. The result? Higher heating bills and a less cosy living space during the winter months.

Regularly inspect the weatherstripping along the door's edges for signs of wear, cracking, or detachment. Replace worn-out strips promptly to maintain a snug seal against cold air.
Use adhesive foam tape or flexible caulking for minor gaps along the door frame or threshold for a temporary seal.
To block cold air from entering underneath, place a door snake or draft stopper at the base of the door. As a DIY solution, use a rolled towel or tube of fabric.
To add an extra layer of protection, hang insulated curtains or blinds on or near your swinging patio doors to trap warmth inside and keep cold air out.

2. Condensation and ice buildup on glass

Cold weather often causes condensation on the interior side of swinging patio door glass. When temperatures drop, this moisture can freeze into ice, obstructing your view and potentially leading to mould and mildew growth. Left unchecked, these problems can damage the door's materials.

Although humidity levels in winter usually drop, some homes experience high humidity. Proper humidity levels reduce the moisture that condenses on cold surfaces like glass.
If you don't want to replace the door with a new one, consider replacing the glass with insulated or low-emissivity (low-E) glass if possible.
Regularly clean the glass and surrounding frames to remove dust, dirt, and other particles that attract moisture.
Use ceiling fans or open interior doors to encourage better airflow around the door.

3. Ice Buildup on frame and door sweep

Ice accumulation on the frame and door sweep of swinging patio doors can make operation difficult and even lead to long-term damage if not addressed. This is especially common in winter, as fluctuating temperatures cause snow to melt and refreeze around the door.

After snowfalls, promptly clear snow and ice from the area surrounding the door, focusing on the threshold and base to minimise the chance of refreezing that leads to ice buildup.
Apply silicone-based lubricants to the door hinges to ensure smooth operation and help prevent freezing by reducing moisture retention in critical areas.
Use a de-icing spray or a safe homemade solution (e.g., a mixture of vinegar and water) to melt existing ice. Avoid harsh chemicals that could damage the door finish or weatherstripping.

4. Warping or damage to frames

Extreme cold and fluctuating temperatures can cause wooden frames to warp or crack. Even frames made from other materials can suffer if not properly maintained.

Choose durable frame materials like fibreglass, vinyl, or aluminium.
Reseal or repaint wooden frames annually to protect them from moisture absorption and temperature fluctuations.
Ensure proper installation to reduce exposure to extreme temperature differences.

5. Difficulty with locks and hinges

Freezing temperatures can cause locks and hinges to stiffen or freeze entirely, making it difficult to operate the door.

Use weather-resistant lubricants on locks and hinges to keep them functioning smoothly.
Cover locks during heavy snowstorms to prevent moisture from entering.
Use lock de-icer sprays or a hand warmer to resolve freezing issues quickly.
Use a key or inside latch to unlock the door every week or so.

6. Snow Accumulation Blocking Doorways

Heavy snowfall can block access to swinging patio doors, making them unusable and potentially causing water damage as the snow melts and freezes again.

Shovel snow promptly to avoid blockages.
Ensure proper drainage to prevent water pooling and refreezing near the door.
Install a covered patio or awning to reduce snow buildup around the doors.

Need help?

If you’re experiencing persistent issues or need help upgrading to more energy-efficient swinging patio doors, contact Bayview Windows today. Our team of experts can help you find the perfect product to keep your home cosy all season long.

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