Analysis of the Three Key Elements for Sealing Broken Bridge Aluminum Doors and Windows

In modern home renovation projects, such as balcony enclosures, kitchen or living room sliding doors, and other window and door installations, broken bridge aluminum doors and windows have gained significant popularity due to their sound insulation and sealing performance. But have you ever wondered how the sealing and sound insulation principles of these windows and doors are actually achieved? The key to effective sealing lies primarily in three elements: glass glue, sealing strips, and the glass itself. In today’s educational session on broken bridge aluminum doors and windows, our team at Xiangyu An Windows will delve into how these three components influence the overall sealing and acoustic insulation performance.

1. Sealing Strips: Their Impact on Sealing and Sound Insulation

Those who have used early-generation aluminum alloy windows may recall that after a period of use, the sealing strips tended to shrink, leading to compromised sealing and waterproofing capabilities. So, do today’s broken bridge aluminum doors and windows face the same issues as the older models? The answer is yes—if low-cost and inferior quality sealing strips are used. Currently, most manufacturers use EPDM (ethylene propylene diene monomer) rubber strips, mainly due to their low cost. However, EPDM strips are not the ideal choice for door and window sealing. Is there a better alternative? Absolutely—TPE (thermoplastic elastomer) strips, often referred to as elastic seals or “water floats.” These strips offer exceptional elasticity, are odor-free, do not shrink over time, and are an environmentally friendly sealing solution. We highly recommend that consumers opt for high-quality sealing strips to avoid compromising the window’s sealing performance due to shrinkage.

2. The Role of Glass in Sealing and Sound Insulation

The glass used in broken bridge aluminum doors and windows generally falls into three categories: tempered glass, laminated glass, and insulated glass. Most people are familiar with tempered glass, so let’s focus on laminated and insulated glass. Laminated glass, also known as sandwich glass, is made by placing a PVB interlayer between two or more sheets of float glass. Through a series of thermal processes, the air is extracted, and any remaining air is dissolved into the interlayer under high temperature and pressure. Insulated glass, on the other hand, consists of two glass panes separated by a spacer filled with inert gas and sealed with a desiccant-loaded aluminum frame. Laminated glass tends to be slightly more expensive than insulated glass. Each type has its own advantages, which are most evident in applications like sunrooms. Typically, the roof of a sunroom uses laminated glass, while the sides employ insulated glass. In cases of falling objects from heights, laminated glass offers superior safety, while insulated glass excels in thermal insulation, energy efficiency, and soundproofing.

3. The Importance of Glass Glue in Sealing and Sound Insulation

In the past, the sealing of glass in aluminum alloy and plastic-steel windows relied mainly on sealing strips. However, minute gaps often remained between the strips and the glass. Therefore, additional sealing between the glass and the window frame is usually achieved using glass glue. For instance, we use environmentally friendly neutral silicone sealant to ensure a tight seal between the broken aluminum window frame and the glass. This product is highly eco-friendly; although there might be a slight odor during initial application, it disappears completely once the sealant has cured.

In summary, these three critical elements—sealing strips, glass, and glass glue—work in unison to ensure the exceptional sealing and sound insulation performance of broken bridge aluminum doors and windows. This makes them an ideal choice for noise reduction, thermal insulation, and energy conservation in modern homes.