Yes, extreme heat can cause your windows to break. Most modern windows have double or triple panes for better insulation. However, glass can expand and contract with temperature changes. When the weather gets scorching, the glass in windows can expand. If the window frame doesn’t allow this expansion, the pressure can cause the glass to crack or shatter. Moreover, Low-quality windows crack very easily. However, sometimes, you only need quality glass replacement services instead of entire window replacement.
Another factor is the difference in temperature between the inside and outside the window. For example, if it’s boiling outside but cool inside due to air conditioning, this can create stress on the glass. The uneven heating can cause the glass to break, especially if small cracks or chips have already weakened it.
Additionally, extreme heat can weaken the sealant around the window, making it less stable and more prone to damage. To prevent this, ensure your windows are installed and maintained correctly, and consider using shades or films to reduce heat exposure.
What Is Extreme Heat?
Extreme heat occurs when temperatures rise very high, often above normal levels. It can happen during summer heat waves and cause problems for many parts of your home, including windows.
How Heat Affects Glass in Your Windows
Expansion and Contraction
Glass expands when it gets hot, meaning it gets bigger. When it cools down, it contracts or gets smaller. This constant expansion and contraction can cause thermal stress and weaken the glass over time. If it is not allowed to expand, the glass can crack or break.
Uneven Heating
Sometimes, one side of the glass is hotter than the other. It is called uneven heating. For example, the outside of the window might be very hot from the sun, while the inside is cool because of air conditioning. This temperature difference creates stress in the glass, which can cause it to crack or break.
Frame and Seal Problems
Frame Issues
The frame that holds the window can also be affected by heat. If the frame expands differently than the glass, it can cause problems. For example, a metal frame might expand more than the glass. This difference can put pressure on the glass and cause it to crack.
Sealant Problems
Windows are sealed with materials that keep air and water out. However, these sealants can break down in extreme heat. When the sealant fails, it can let in air and moisture, making the window less stable and more likely to break.
Types of Glass and Heat Resistance
Single-Pane Glass
Single-pane glass is one layer of glass. It is not very strong and can break easily in extreme heat. It does not provide good insulation so that it can get hot or cold.
Double-Pane Glass
Double-pane glass has two layers of glass with a space in between, which can be filled with air or gas. It is better at resisting heat, providing better insulation, and is less likely to break from temperature changes.
Tempered Glass
Quality tempered glass is strong and a good option for a hot summer. It is made by heating and cooling the glass quickly, making it much more robust than regular glass. Tempered glass is also less likely to break from heat.
How You Can Prevent Heat Damage to Your Windows
- The Power of Curtains and Blinds:
Curtains and blinds are your first defence against the sun’s relentless heat. Thick, light-coloured curtains or blinds with reflective backing can significantly reduce the heat entering your home. Close them during the hottest parts of the day to prevent summer heat from coming inside. Remember to choose energy-efficient options that complement your interior decor.
- Consider Window Films:
Window films offer a practical solution for preventing heat damage while maintaining natural light. These thin layers of specialized film are applied directly to your windows. Without these films, window glass cracks easily. They help to block the heat-generating UV rays and prevent excessive heat from entering your living spaces. Window films are available in various shades and designs, allowing you to choose the perfect balance between aesthetics and functionality.
- Maximize Shade with Exterior Awnings:
Exterior awnings enhance your outdoor living space and provide shade for your windows. When properly positioned, these awnings can cast shadows over your windows as a barrier to the sun’s heat. Select awnings made of UV-resistant fabric to block the sun’s rays effectively.
- Harness the Power of Nature with Trees and Plants:
Strategically planting trees and shrubs around your home can go a long way in reducing heat transfer through your windows. Deciduous trees, in particular, provide shade during summer when their leaves are at their fullest. By planting them on the east and west sides of your home, you can prevent excessive sunlight from penetrating your windows.
- Window Treatments with Heat-Reflecting Properties:
Investing in windows with heat-reflecting properties can significantly improve indoor comfort. These windows are designed with a special coating that reflects the sun’s heat away from your home, keeping it cooler in summer. While replacing your windows might be a more costly solution, window treatment offers long-term benefits in terms of energy efficiency.
- DIY Window Insulation:
Window insulation is an inexpensive and effective way to reduce heat transfer. Weatherstripping or caulking can seal gaps or cracks around your windows, preventing unwanted airflow. Applying insulating window film can also provide an extra insulation layer, blocking heat from entering your home.
- Install Window Shades and Shutters:
Window shades and shutters add a touch of elegance to your home and serve as an effective heat-blocking solution. These coverings are designed to fit snugly against the window frame, creating an insulating barrier that keeps the heat out. Choose from various materials, such as wood, vinyl, or aluminium, ensuring they fit your windows perfectly.
- Use Reflective Window Screens:
Reflective window screens offer an affordable and straightforward solution to reduce heat penetration. These screens are designed to reflect sunlight away, minimizing its impact on indoor temperature. They keep your home cooler and provide privacy during daylight hours.
- Consider Window Shades and Films for Skylights:
Skylights are beautiful and allow ample natural light to brighten your home. However, they can be a significant source of unwanted heat. Installing shades or films designed explicitly for skylights can significantly reduce heat transfer. These specially designed coverings can block a considerable portion of the sun’s rays, making your living space more comfortable.
- Ventilate to Exhaust Heat:
Proper ventilation plays a crucial role in preventing heat build-up within your home. Consider installing exhaust fans or vents near your windows to expel warm air. You can open windows on opposite sides of your home to facilitate cross ventilation and allow fresh air to flow freely, eliminating hot air pockets.
- Schedule Regular Window Maintenance:
Keeping your windows in good condition is essential to effectively blocking heat infiltration. Regularly clean your windows to remove dirt or debris that can impair their insulating and heat-blocking properties. Check for damaged seals or cracks requiring professional glass repair or replacement.
What to Do If a Window Breaks
Stay Safe
If a window breaks, be careful. Broken glass can be very sharp. Clean up the shattered pieces of broken windows carefully. Wear gloves and use a broom and dustpan to pick up the glass pieces.
Temporary Fixes
Cover the broken window with cardboard or plastic to keep out the weather. This is a temporary fix for glass breakage until you can repair the window.
Call a Professional
Contact a professional to repair or replace the broken window. They have the right tools and skills to fix the window safely.
Conclusion
Extreme heat can cause problems for windows. The glass can expand and contract, leading to cracks and breaks. Frames and sealants can also be affected. Window film, blinds, curtains, and awnings can help protect your windows. Regular window glass maintenance is also essential. If a window breaks, stay safe and call a professional to fix it. By taking these steps, you can protect your windows from extreme heat.
