In winter, exterior doors face the toughest test of all – cold, wind and temperature differences between indoors and outdoors. If you want doors that really keep the warmth in, there are several specific criteria worth checking.
An exterior door is not just an entrance to your home – it is also one of the places where heat escapes most easily. In winter, unsuitable doors mean draughts, cold floors and higher heating bills. This article looks at what makes doors suitable for the Latvian winter and which indicators to focus on before buying.
Quality winter exterior doors have a thermal break construction – meaning an insulating material separates the outer and inner sides of the door, preventing cold from travelling through a metal or other frame.
The filling inside the door – usually foam or mineral wool – determines how well the door retains heat. Thicker, higher-quality filling means better thermal insulation.
As we have written before, several sealing lines around the door perimeter ensure that even if one line wears out over time, the rest still protect against draughts.
The threshold is often where the most heat is lost – right at floor level. An insulated threshold is a critical element that many people forget to check.
Durable, secure and with good thermal insulation when the construction includes a thermal break. These doors withstand weather conditions and mechanical load well.
They insulate heat well, require minimal maintenance and are usually available at a more affordable price. However, they may be less resistant to mechanical impact than metal doors.
If you feel a draught near the door, see condensation around the frame, or your heating bills rise without a clear reason, it may indicate that the existing doors no longer provide adequate thermal insulation. In such cases it is worth considering door replacement or at least checking the seals and hardware.
Exterior door selection: what to check
Door size and opening: why precision matters
What is a multi-layer sealing contour?
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