Types of Windows and Frames in Bangladesh: A Comprehensive Guide

Windows are essential elements in construction, providing natural light, ventilation, and aesthetic appeal to buildings. In Bangladesh, with its diverse climate, urban landscape, and growing demand for residential and commercial buildings, various types of windows and frames are used. The selection of windows largely depends on functionality, energy efficiency, security, design preferences, and budget. Similarly, the material used for frames also plays a crucial role in the durability, appearance, and maintenance of windows.

This guide will explore the types of windows and frames commonly used in Bangladesh, providing insights into their advantages and ideal applications.

Types of Windows in Bangladesh

1. Sliding Windows

Sliding windows are one of the most popular window types in both residential and commercial buildings in Bangladesh. They are characterized by horizontal or vertical movement where one window sash slides over the other. Sliding windows are known for their space-saving design, as they don’t require extra space for opening or closing.

1. Features:  

• Horizontal or vertical sliding design
• Simple operation and easy to maintain
• Often made with two or more sashes
• Good ventilation properties

1. Ideal Uses:  

• Apartments and office buildings where space is limited
• Kitchens and bathrooms where ventilation is important
• Balconies or other areas with limited opening space

1.  Frame Material: Sliding windows are typically available in UPVC, aluminum, or wood frames.

2. Casement Windows

Casement windows are hinged at the side, and they open outward like a door. These windows are known for providing excellent ventilation and are often used in homes, offices, and commercial buildings. They are easy to open and close, making them a popular choice for areas requiring good airflow.

1. Features:  

• Hinged on one side, opening outward
• Secure, as they can be locked tightly at multiple points
• Provides a clear, unobstructed view
• Great ventilation and energy efficiency

1.  Ideal Uses:  

• Bedrooms and living rooms
• Villas or bungalows with a larger exterior space
• Corner spaces or areas where windows need to open fully

1. – Frame Material: Casement windows are available in aluminum, wood, UPVC, and steel frames.

3. Awning Windows

Awning windows are similar to casement windows, but they are hinged at the top rather than the side. They open outward, typically with a crank mechanism, and form an “awning” over the opening. These windows are great for protection against rain while still allowing fresh air into the room.

1. Features:  

• Hinged at the top and opens outward
• Good for areas where the weather is unpredictable (protection against rain)
• Offers ventilation without compromising security
• Ideal for high-rise buildings or bathrooms that require air circulation

1. Ideal Uses:  

• Bathrooms
• Kitchens where ventilation is essential
• Top floors of buildings to prevent water entry during rainfall

1. Frame Material: Awning windows are typically constructed with aluminum, UPVC, or wood frames.

4. Fixed Windows

Fixed windows do not open and are designed primarily for allowing natural light to enter a space while keeping the outside elements out. These windows are often used in combination with other window types to maximize the flow of light.

1. Features:  

• Non-operable, fixed in place
• Provide unobstructed views and abundant natural light
• Highly energy-efficient since they have fewer movable parts
• Can be large and used in combinations with operable windows

1. Ideal Uses:  

• Living rooms, lounges, or offices where views and natural light are important
• High-rise buildings or commercial spaces that do not require opening windows

1. Frame Material: Fixed windows are commonly made from aluminum, UPVC, or steel.

5. Louvered Windows

Louvered windows feature slats or shutters that allow for adjustable airflow while still providing privacy. These windows are often used in tropical and coastal areas, as they allow air circulation while protecting from direct rain or sun.

1. Features:  

• Adjustable slats made of wood, aluminum, or glass
• Excellent for ventilation
• Provides privacy and reduces sunlight intensity  

1. Ideal Uses:  

• Bathrooms and kitchens
• Tropical climates where ventilation is crucial
• Commercial buildings with ventilation needs

1. Frame Material: Louvered windows can be made of wood, aluminum, or steel frames.

6. Tilt and Turn Windows

Tilt and turn windows offer the flexibility of tilting inward for ventilation or fully turning to open wide like casement windows. They are commonly used in modern homes and apartments due to their versatility and security features.

1. Features:  

• Multiple opening options for controlled ventilation
• Secure locking mechanisms
• Good insulation properties
• Easy to clean, especially for high-rise buildings

1. Ideal Uses:  

• Modern homes, apartments, or offices
• High-rise buildings with limited external space for opening window

1. Frame Material: Tilt and turn windows are most commonly made with UPVC or aluminum frames.

Types of Window Frames in Bangladesh

The choice of window frame material plays an important role in the durability, aesthetic appeal, and maintenance requirements of the window. Below are the most common materials used for window frames in Bangladesh:

1. UPVC (Unplasticized Polyvinyl Chloride)

UPVC is one of the most popular materials for window frames in Bangladesh due to its durability, energy efficiency, and low maintenance. UPVC frames are resistant to corrosion, rot, and weathering, making them ideal for the hot and humid climate of Bangladesh.

1. Advantages:  

• Excellent insulation properties (thermal and sound)
• Low maintenance (no painting required)
• Resistant to rust, corrosion, and termites
• Long lifespan

1. Ideal Uses:  

• Residential and commercial buildings
• Windows in humid or coastal areas due to their resistance to saltwater corrosion

2. Aluminum

Aluminum frames are lightweight and durable, making them a popular choice for modern window designs. Aluminum frames are available in a wide range of finishes and colors and are ideal for both large and small windows.

1. Advantages:  

• Lightweight and strong
• Resistant to corrosion, especially with anodized finishes
• Can be easily customized with different colors and textures
• Low maintenance

1. Ideal Uses:  

• Modern and contemporary buildings
• High-rise buildings or areas that require large windows
• Commercial spaces

3. Wooden Frames

Wooden frames are traditional window frames that offer a classic and warm look. While they require more maintenance than UPVC or aluminum, wooden frames are highly valued for their aesthetic appeal and environmental friendliness.

1. Advantages:  

• Offers a classic and natural appearance
• Provides good insulation against heat and noise
• Can be customized and painted in different colors

1. Ideal Uses:  

• Traditional homes or heritage buildings
• Luxury residences or boutique offices
• Cottages or rural areas

1. – Maintenance: Wooden frames require regular painting, sealing, and maintenance to prevent damage from moisture, termites, and decay.

4. Steel Frames

Steel frames are used for larger, more durable windows and offer high security due to their strength. They are often used in industrial, commercial, or high-security buildings, as steel is resistant to external threats like forced entry.

1. Advantages:  

• Strong and secure
• Long-lasting and durable
• Fire-resistant and safe for industrial applications

1. Ideal Uses:  

• Factories, warehouses, or commercial buildings
• High-security areas where strength is important

Conclusion

Choosing the right type of window and frame material is essential for ensuring your building’s energy efficiency, aesthetic appeal, security, and long-term durability. In Bangladesh, popular options for windows include sliding windows, casement windows, awning windows, and fixed windows, while materials for frames range from UPVC and aluminum to wood and steel.

For those looking to make informed choices, working with a reliable supplier like ConstructionMart can help you select the best windows and frames for your project. Whether you’re building a new home, commercial space, or upgrading an existing building, ConstructionMart can assist with expert guidance, quality products, and timely delivery, ensuring you get the right combination of functionality, design, and performance.