How does the quality of aluminium in doors and windows affect its weather resistance?

March 20, 2025

Aluminium is one of the most popular materials for windows and doors in India. Its durability, lightweight nature, and corrosion resistance make it an excellent choice for Indian homes. However, not all aluminium is created equal. The quality of aluminium used in windows and doors plays a crucial role in how well it withstands extreme weather conditions.

India has diverse climates, from the humid coastal regions to the dry heat of the north and the heavy monsoons in the west. Cities such as Chennai and Hyderabad, with its hot summers and heavy monsoons, require aluminium doors and windows that can withstand high temperatures, UV exposure, and occasional heavy rainfall. Choosing high-quality aluminium ensures that windows and doors remain strong, durable, and resistant to environmental challenges.

Here, we will explore how the quality of aluminium affects its weather resistance and why homeowners should invest in premium-grade aluminium for long-lasting performance.

Key properties of high-quality aluminium:

• Corrosion Resistance: Aluminium naturally forms an oxide layer that protects it from rust and moisture damage.
• Strength-to-Weight Ratio: High-quality aluminium is strong yet lightweight, making it ideal for large window frames.
• Thermal Stability: Premium-grade aluminium does not expand or contract excessively with temperature changes.
• Coating and Finish Options: High-quality aluminium is treated with powder coating or anodization to improve durability and resistance to harsh weather conditions.

How does poor-quality aluminium fail in adverse weather conditions? 

Many homeowners choose aluminium windows and doors for their sleek look and durability, but low-quality aluminium can lead to several problems. For instance, in areas with high humidity and salt exposure, poor-quality aluminium with low-grade coatings or untreated surfaces is prone to corrosion. Over time, this leads to pitting, discoloration, and structural weakening.  

Extreme temperatures also affect inferior aluminium. In very hot summers, low-grade aluminium expands, while in cold weather, it contracts. This continuous movement causes warping and misalignment – which leads to gaps, air leaks, and difficulty in opening or closing windows and doors. These issues not only compromise energy efficiency but also impact overall comfort. 

Strong sunlight and high temperatures can further weaken aluminium that lacks proper coatings. Poor-quality aluminium may fade, discolor, or lose its strength due to prolonged UV exposure. High-quality powder-coated or anodized aluminium retains its finish and durability for years. Heavy rainfall and moisture can also be problematic for low-quality aluminium. 

Windows and doors made from inferior materials often lack proper sealing – which leads to water leakage and long-term damage. Weak joints and poor drainage systems can lead to structural issues. Buying high-quality aluminium windows and doors ensures better protection against moisture, prevents leaks, and enhances overall durability in extreme weather conditions.

What are the benefits of choosing a high quality aluminium frame for your home’s windows and doors?

Reputable manufacturers use 6063-grade aluminium, known for its superior corrosion resistance and durability. This aluminium undergoes T6 tempering, a specialized heat treatment process that enhances its structural integrity and longevity. Choosing premium-grade aluminium ensures that windows and doors remain sturdy, even in harsh weather conditions.

Protective coatings further improve aluminium’s resilience. Powder coating provides a weather-resistant finish that protects against corrosion, UV damage, and fading. Anodization enhances oxidation resistance, extending the lifespan of aluminium products. In high-exposure environments, PVDF coating offers superior protection against salt damage and harsh weather. These coatings help aluminium retain its quality and reduce maintenance needs, making it a reliable choice for long-term use.

Thermal break technology plays an important role in maintaining indoor comfort. High-quality aluminium doors and windows feature a non-conductive barrier between the interior and exterior sections of the frame. This technology minimizes heat transfer – and keeps interiors cooler in summer and warmer in winter. Proper sealing and drainage systems are essential for protecting aluminium windows and doors from moisture damage. 

Buying high-quality aluminium windows and doors provides several long-term advantages. They last between 30 to 50 years with minimal upkeep. Its strong, reinforced frames support advanced locking systems, improving security and resistance to external forces. Well-designed aluminium windows and doors also increase property value.

Planning to install high-quality aluminium windows for your house?

Explore our aluminium windows for house. All Alteza windows and doors are made of alloy 6063-T6.  They feature a low Uf value, require minimal maintenance, and offer long-term reliability. These frames are built to endure various environmental conditions, including humidity, temperature changes, and prolonged exposure to sunlight. Their resistance to corrosion helps prevent surface deterioration, while their sturdy construction minimizes the risk of cracking or blistering. Over time, they maintain their original appearance without discoloration or rotting, even in challenging weather. This durability ensures they remain functional and visually appealing with minimal upkeep. We are committed to providing the highest quality products, designed and installed to the highest standards. Every product comes with a comprehensive 10-year warranty for your peace of mind.