When it comes to home decoration, many homeowners live with elderly family members, children, or nannies. In smaller homes, sound insulation becomes a critical factor in ensuring comfort and privacy. However, the sound insulation rating is a highly technical measure that can be misleading if not properly understood. That’s why it's practical to know how to assess the soundproofing performance of wooden doors. Jiuzheng Building Materials Network shares three useful tips for your reference:
1. Check the weight. Sound insulation is closely related to material density—higher density usually means better soundproofing. Lighter molded doors often have poor sound insulation because they are less dense.
2. Look at the thickness of the wooden veneer. Thicker surface layers offer better soundproofing. For example, TATA doors use an 8mm thick veneer, which is rare in the industry. While thicker layers improve sound insulation, they also increase costs.
3. Inspect the flatness of the door. A flatter door ensures better sealing between the door panel and frame. Any deformation can lead to gaps, allowing noise to leak through.
Same Door Cover
Another important factor is the quality of the adhesive used between the door panel and the wall. Poor adhesion can significantly reduce soundproofing effectiveness.
To protect against noise pollution and create a peaceful indoor environment, soundproof doors like the T-shaped door have become essential. These doors help maintain a green, quiet living space.
Green Soundproofing Standard – 25 Decibels
While people often focus on the design and materials of doors, sound insulation should be the top priority. In China, the standard for indoor soundproofing is between 22 to 25 decibels, meaning the door should block at least 20 decibels of noise. But in reality, modern homes are filled with various noises—from air conditioners and refrigerators to loud music and kitchen appliances. Standard doors struggle to handle this constant noise, leading to stress and disrupted daily life. T-shaped doors, however, can withstand up to 40 decibels of noise, offering a much quieter and healthier living environment.
T-Port – The Revolution in Soundproof Doors
The T-shaped door, named after its distinctive T-like appearance, is known for superior soundproofing. Originally developed in Germany, it has been popular in Europe for over two decades. Unlike traditional flat doors, the T-shaped design offers significantly better sound insulation due to its unique structure and internal sound-absorbing materials.
Double-Curved Structure
The T-shaped door features a double-curved joint between the door panel and frame, creating a tighter seal. This reduces the gap through which sound can pass. During testing, it was found that the T-shaped door effectively blocks external noise, even when people are speaking inside. In contrast, flat doors allow more sound to penetrate. Additionally, the T-shaped door uses a rubber seal that stretches and compresses to enhance soundproofing. When closed, the rubber seal reaches about 5mm in thickness, achieving a sound insulation level of up to 50 decibels—far exceeding the national standard.
Three-Layer Soundproofing System
The T-shaped door consists of three layers. The outer layer is made of high-density solid wood panels, followed by a particle board-like middle layer with neatly arranged air holes for both soundproofing and thermal insulation. The inner core is environmentally friendly and contributes to around 30 decibels of sound insulation. When noise waves hit, the first layer reflects some of the sound, the middle layer absorbs the rest, and the final layer blocks what remains. This multi-layered approach ensures minimal noise penetration, making the T-shaped door a top choice for those seeking peace and quiet at home.
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