Five tips to help you install energy-efficient windows and doors—making your home more eco-friendly and low-carbon
Release date:
2025-09-01
Facing homes with west-facing orientations and large floor-to-ceiling windows—features that have now become standard and are structurally difficult to "radically alter"—what clever solutions can help transform their inherently "non-energy-efficient" status? In fact, by making a few smart "small tweaks" during the renovation process, your home can easily join the ranks of buildings that are "relatively energy-efficient."
Tip #1: Install "sealing strips" on doors and windows
Some doors and windows suffer from poor manufacturing and installation quality, resulting in gaps that let cold air seep in during winter and heat escape in summer. They also fail to provide effective sound insulation. To improve their performance, we recommend installing "weatherstripping"—a simple, affordable solution that delivers noticeable results and can help you save energy. Even if your home already has weatherstripping, it’s still a good idea to check them seasonally. Simply feel along the seams with your hand when there’s a draft; if you can detect even a slight breeze, it’s time to replace the strips promptly.
Tip 2: Add a "thermal layer" to your balcony door
To make indoor spaces feel more spacious, many families choose to remove balcony doors during renovations, especially when these doors are directly connected to the living area. Alternatively, some opt to completely enclose their balconies without installing doors at all. However, this approach is unwise. As explained, since most balconies are cantilevered structures, their energy-efficient features are typically much weaker compared to standard walls. Without a balcony door, this inherent weakness can lead to increased energy consumption for heating or cooling the entire home. Experts recommend not only keeping the balcony door intact during renovations but also considering adding an extra layer of insulation around the balcony area—or even upgrading to double-glazed, energy-efficient windows when enclosing the space.
Tip 3: Apply "aluminum foil" to the top roof
Top-floor apartments or homes located at the ends of a building often suffer from the issue of being "cold in winter and hot in summer." When renovating, you can install some "special features" to improve this situation.
For example, applying low-emissivity materials like aluminum foil to the inner surface of the roof can reduce radiative heat transfer between the roof surface and the human body.
For example, apply an insulation mortar layer 20 to 30 millimeters thick on the inner side of the exterior wall, or paint the outer surface of the wall with white or light-colored coatings.
For example, lay a "thermal insulation layer" of 100 to 150 millimeters over the roof's waterproofing membrane.
Tip 4: Install a "sunshade" outside your window.
Installing an "awning" outside the window, combined with curtains inside the room, are both great ways to reduce energy consumption during summer.
It is understood that external awnings can block most of the solar radiation from entering the window, offering a much better effect than relying solely on curtains.
When decorating, you can also opt for "heat-reflective" curtains—these feature a silver-white synthetic metallic material on the side facing outward, while the interior-facing side boasts a stylish, patterned fabric design. Not only do these heat-reflective curtains help you save energy, but they’re also an effective solution to address the issue of excessive energy consumption caused by your home’s inherent lack of energy efficiency.
Tip 5: Plant some "creeping fig" at the base of the wall.
Climbing plants like wall creeper and ivy can grow directly along walls, while vine plants such as grapes, morning glories, coral vines, and trumpet flowers can climb upward along trellises.
These plants thrive during the hot summer months, perfectly serving to block solar radiation and absorb sunlight heat. In winter, however, they shed their leaves, ensuring they don’t obstruct buildings from receiving natural daylight.
According to calculations, during the peak summer season, houses with plants climbing their walls can see exterior wall surface temperatures drop by 4 to 5 degrees Celsius, and indoor temperatures will also decrease slightly.
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