- Why is it worth choosing windows resistant to sun and high temperatures?
- What should you pay attention to when choosing windows that are perfect for summer?
- Which windows work best in summer?
- Window frames and heat protection
- How to enhance sun protection?
Why is it worth choosing windows resistant to sun and high temperatures?
Summer is the time when good windows become as important as air conditioning. Properly selected joinery helps to limit the penetration of heat and sunlight into the interior, which translates into lower energy consumption and higher living comfort.
Solar windows reduce the effect of heating rooms while allowing daylight to enter. Thanks to them, the apartment, house or office remains pleasantly cool – without the need for all-day cooling with an air conditioner.



What should you pay attention to when choosing windows that are perfect for summer?
Energy-saving windows are not just fashion – they are real protection against the effects of high temperatures. When buying sun-resistant windows, pay attention to the key parameters:
- Uw – heat transfer coefficient : a low Uw means that the windows effectively insulate both in winter and summer.
- g – solar energy transmittance coefficient : the lower it is, the less heat from the sun’s rays gets inside.
- Lt – daylight transmittance : it is worth finding the golden mean – plenty of light, but without excessive heating.
A good choice will be windows that meet energy standards and are equipped with sun protection glass with additional UV filters that protect the interior from the harmful effects of radiation – furniture and floors do not fade and the temperature remains stable.
Which windows work best in summer?
It is the windows that are largely responsible for whether a room will heat up. Among the most effective solutions, it is worth mentioning:
- Glass with a coating that reflects thermal radiation, which does not allow heat to penetrate into the interior.
- Glazing units with noble gas, double or triple glazing with a filling, e.g. argon, which increases thermal insulation.
- Solar control glass reduces the amount of solar energy penetrating into the interior and is particularly recommended for large glazing and south-facing windows.
On hot days, it is the glass that decides whether the room temperature remains comfortable or becomes unbearable.



Window frames and heat protection
Although they may seem less important at first glance, window frames also affect thermal comfort. It is worth paying attention to:
- PVC – excellent thermal insulation and low thermal conductivity.
- Wood – a natural material that provides good protection against temperature changes.
- Aluminum with thermal break – elegant appearance and high durability, with good insulation thanks to additional insulating layers.
Additionally, it is worth remembering that dark colours heat up faster , so for very sunny places it is better to choose lighter shades or matte finishes that attract the sun’s rays less.
How to enhance sun protection?
Even the best solar windows will gain additional effectiveness if you combine them with appropriate external coverings :
- External roller shutters – retain heat and light in front of the glass, and additionally increase privacy.
- Facade blinds – enable precise control of light and temperature inside without the need to completely darken the room.
The combination of modern joinery with roller shutters or blinds is a recipe for a comfortable home in the summer without overloading the air conditioning .
When choosing heat-resistant windows , it is worth choosing models with a low gi Uw coefficient, with solar control glass and frames with good insulation parameters. Complementing them with external solar screens allows you to create an effective barrier against the sun, which not only improves comfort, but also protects the home interior from overheating and fading.
Contact our partner to choose windows that will allow you to slowly enjoy pleasant coolness even on the hottest days.