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In the cold seasons of autumn and winter, rooms with poorly sealed doors and windows often feel drafty, especially in older homes. Wind can sneak through cracks in the windows, bringing along dust and making the indoor environment uncomfortable. The primary function of doors and windows is to block wind and dust, so it's essential to maintain their sealing properties. One cost-effective solution is to replace window seals or reapply sealant. If your budget allows, you might even consider replacing old windows or adding security doors, followed by a set of thick **curtains** that help keep the cold out.
**â– Warmth-Enhancing Measures**
**Seal the Windows to Prevent Air Infiltration**
During the windy season in Beijing, you might feel a cool breeze near the windows without knowing where it’s coming from. To identify the source, run your hand along the edges. Two common issues could be: 1) aging or worn-out rubber seals between the glass and window frame, which lose effectiveness over time, or 2) gaps between the window frame and the wall due to loose installation. Both situations allow cold air to enter.
**Solution:** For worn seals, you can purchase new ones from a hardware store and install them yourself. Simply remove the old strip with a screwdriver, insert the new one into the groove, and secure it. For gaps between the frame and the wall, clean the area first, then apply a layer of silicone sealant around the frame. A 5–10 mm width is ideal for effective sealing.
**Cost:** Sealing strips cost under ¥10 per meter, and sealant is about ¥20 per tube.
**Note:** Not all seals need replacement. Only replace those that are damaged or no longer effective. For serious gaps, consider professional repair, such as using foam insulation to ensure a tighter fit.
**Replacing Windows or Adding Glass Layers**
Older homes often have single-pane windows that don’t provide good insulation or soundproofing. To improve thermal performance, consider increasing the number of glass layers. However, simply adding another pane to an existing frame may not work well due to size and weight differences. It’s better to either replace the entire window or add an extra layer.
**Solution:** Replacing the window involves measuring, custom manufacturing, and installation. If you’re adding an extra layer, choose either an internal or external window depending on how the original opens. This double-layer setup enhances insulation, and materials like plastic steel or broken bridge aluminum are recommended.
**Cost:** Plastic steel windows cost about ¥300 per square meter, while broken bridge aluminum ranges from ¥500 to ¥800 per square meter.
**Tip:** After installation, check the glass thickness, safety certifications (like 3C marks), and the window hardware to ensure smooth operation and tight closure.
**Use Thick and Insulating Curtains**
Winter curtains aren’t just for light control—they also help keep the room warm. Thick, long curtains with dense fabric can block drafts and reduce heat loss. Choosing the right texture, size, and color is important to match your interior style and maximize warmth.
**Solution:** For south-facing windows, you have more flexibility in fabric and color choices. North-facing rooms should use darker, warmer tones and materials like cotton or flannel for better insulation. These fabrics also offer some dust resistance and soundproofing benefits.
**Budget:** Curtain prices vary widely, from hundreds to thousands of yuan per square meter.
**Tip:** To enhance warmth further, consider matching other soft furnishings—like throw pillows, rugs, or lamps—with similar colors or materials to create a cohesive, cozy look.
**â– Additional Tips**
**Avoid Sliding Windows for Better Insulation**
While sliding windows save space and are cheaper, they tend to leave small gaps when closed, allowing cold air to enter. For better thermal performance, opt for hinged windows that close tightly.
**Plan Installation During Calm Weather**
Window replacement requires precise measurements and factory production. Scheduling during calm weather reduces construction challenges, especially for high-rise buildings where safety is a concern.
**Don’t Over-Invest in Screens**
When replacing windows, you may also need to update the screen. However, it’s not necessary to buy high-end screens. A regular one can last a couple of years before being replaced, saving money without sacrificing functionality.
**Choose Insulated Door Materials**
Old security doors were often thin and lacked proper insulation. Even adding a wooden door inside doesn’t fully solve the issue. If possible, invest in a quality security door that includes insulating materials, offering both safety and warmth.