Aluminum is one of the most used materials in modern construction. Its lightweight nature, corrosion resistance, and low maintenance make it suitable for both windows and doors. But to keep water, dust, wind, and noise out, proper sealing is necessary. Without it, even the strongest material can fail to provide comfort or protection.
Let us understand how weather sealing works in aluminum systems and why it plays an important role in both performance and durability.
What Is Weather Sealing in Aluminum Frames?
Weather sealing is the process of closing gaps between movable or fixed parts of a window or door. These gaps are necessary for opening and closing, but they also allow outside elements to enter if not sealed properly.
In carpinteria aluminio Valencia, weather sealing is a standard feature in both sliding and casement systems. The goal is to improve energy efficiency, block air leaks, and prevent water infiltration.
Seals are placed along frame edges, joints, and contact surfaces. These seals can be made of rubber, foam, silicone, or brush-type materials depending on the design.
Where Are Seals Used in Aluminum Systems?
Sealing is applied in several parts of a window or door:
- Between sash and frame: This is where movable parts meet the fixed frame. Seals here help reduce air and water leaks.
- At the corners and joints: Any connection between frame parts must be tightly sealed to prevent gaps.
- Sliding tracks and grooves: In sliding systems, brush seals or rubber profiles reduce friction and keep dust and wind out.
- Drainage zones: Some designs include channels to guide rainwater out of the system. These areas are sealed to prevent backflow.
Each point where two surfaces meet is a potential leak path. Seals close these points without blocking the movement of doors or windows.
How Do Different Seal Types Work?
There are several kinds of seals used in aluminum carpentry:
- EPDM rubber seals: These are common for their flexibility and resistance to weather. They press tightly between surfaces to block water and air.
- Brush seals: Often used in sliding windows and doors. They prevent dust and reduce air flow while allowing smooth movement.
- Foam tapes: These are placed in fixed frames and act as a cushion to absorb pressure and close gaps.
- Silicone sealants: Applied in joints or corners during installation to fill any visible or hidden gaps.
Each seal is chosen based on the system’s movement, location, and exposure to elements.
Conclusion
Weather sealing is a key part of any aluminum window or door system. It keeps rain, wind, dust, and noise outside, while improving comfort and energy savings inside. For any home or office, especially in areas with changing weather, sealing is not optional, rather it is essential.
In aluminum, sealing systems are developed to meet both local climate demands and user needs. By combining strong aluminum frames with proper sealing, you get long-lasting protection and reliable performance every day.