How should you choose doors and windows? Here's how to tell the difference between high-quality and low-quality断桥铝 (broken bridge aluminum) doors and windows.
Release date:
2025-09-01
The quality of broken bridge aluminum doors and windows depends on factors like profiles, corner connectors, hardware components, sealing strips, and glass—but this is precisely where manufacturers often cut corners. They reduce materials, substitute inferior products for higher-quality ones, and even use recycled profiles disguised with fake films, all in an attempt to maximize profits. As a result, the doors and windows may become warped, fail to seal properly, or develop cracks at the corners, severely shortening their lifespan and compromising performance.
1. First, you should purchase from reputable, well-known brands, as their aluminum products are guaranteed in quality. These brands are not only known for their excellent quality but also enjoy high visibility—precisely because of this, there are many counterfeit and high-quality imitation versions available on the market.
2. Metal aluminum corner brackets must be used to securely fasten each corner of the window frame and sash, followed by applying corner-sealing adhesive to ensure the overall structural integrity of the doors and windows. This guarantees that the windows and doors remain deformation-free, even under extreme conditions like scorching sun, bitter cold, strong winds, or heavy rain—and provides excellent sealing performance.
However, some manufacturers, driven by the desire for higher profits, opt for weaker plastic corner brackets instead of using durable metal ones, and they skip the crucial step of applying corner-sealing adhesive. As a result, the corners of the windows and doors become structurally weak, prone to cracking and warping, severely compromising their lifespan and performance.
3. Use (EPDM) sealing strips—odorless, highly elastic when stretched. These strips are unaffected by weather conditions, ensuring waterproofing, airtightness, sound insulation, and thermal efficiency between the frame and sash.
4. Use (5mm) hollow float glass—its thickness directly affects both thermal insulation and soundproofing performance. Float glass remains perfectly flat from every angle, maintaining its shape without distortion, free of bubbles, and offering excellent transparency. Tempered glass, meanwhile, is produced by subjecting float glass to a tempering process.
5. When installing doors and windows, first fill the gap between the frame and the wall with expanding foam, then apply a layer of neutral silicone waterproof sealant for both aesthetics and water resistance.
6. Use neutral silicone weatherproof and waterproof sealant between the glass and window sash—it offers excellent resistance to aging, superior heat retention, outstanding sound insulation, and a tight, seamless seal. High-quality silicone weatherproof sealant, once cured, becomes glossy, elastic, and completely odorless.
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Contact Address: No. 7, Industrial Avenue East, Songxia Industrial Park, Shishan Town, Nanhai District, Foshan City
Warren Doors and Windows, south of Fangshan Road and west of Dongtai Road, Dongcheng Subdistrict, Linqu County, Weifang City, Shandong Province
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National customer service hotline:+86 400-676-9888
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Beijing customer service phone number:+86 010-68319888
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