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Sun protection makes air conditioning systems superfluous
Sun protection makes air conditioning systems superfluous
Video: Sun protection makes air conditioning systems superfluous
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When the sun shines in summer, the owners of photovoltaic systems are particularly happy. But unlike on the roof, the sun's warmth inside the house is rather undesirable during this season. If you want to effectively block out the sun, the best thing is to use external sun protection. In this way, he can relieve the air conditioning system - or completely dispense with an air conditioning unit.

Summers in Germany are getting warmer, year after year one heat record is chasing the next. While most people enjoy the sun outdoors, they prefer a moderate, cool room temperature in the house and apartment during the summer months. Fixed or movable sun protection offers a very good way to block out the heat.

Catch the sun in front of the window

Awnings - or even better - external blinds have proven to be the ideal solution. Because in order to create a pleasant interior temperature, the solar energy should be intercepted before it reaches the interior through the windows. External blinds are particularly suitable for this. Awnings and awnings can also be used on the balcony or terrace to further optimize shading.

Locking out the sun with interior blinds or curtains does not bring the desired effect - this is also emphasized, for example, by the Consumer Protection Association Living in Property (WiE). “If you hang a roller blind inside the window, it works like a heat trap,” explains architect Birgit Thielmann. This is due to the physics: “Around 50 percent of the sun's rays are short-wave and pass through glass panes almost unhindered. There they are absorbed by objects, for example the roller blind, and converted into heat rays. However, they are long-wave, can no longer penetrate the window glass and therefore remain as heat in the room.”In particular with older windows with poor thermal insulation values, the room heats up despite an interior blind.

With good sun protection, the house and apartment always stay nice and cool even in high heat and you can really enjoy the summer. Anyone who ventilates at night and closes the windows and sun protection systems during the day ensures a pleasant indoor climate throughout the house.

Modern sun protection is smart

Modern glare, privacy and heat protection systems - for example textile zipsreen systems - can be equipped with an electronic control. This ensures that the sun protection opens and closes automatically. Sensors, radio transmitters or apps can be used. Digital technology increases comfort, saves energy and ensures a long lifespan for sun protection. The sun protection in connection with a light sensor opens or closes depending on the angle of the sun.

Modernes Sonnenschutz-System
Modernes Sonnenschutz-System

Modern sun protection systems combine intelligent glare, privacy and heat protection.

Photo: heroal

Textile zipscreen systems reduce solar radiation by up to 75 percent without having to do without natural daylight. They are available in different colors and they can vary between transparency and almost complete opacity. Different installation situations are possible: They can be integrated into the facade or the insulation level from the outside, or they can be mounted in a stem box on the wall or in the reveal in front of the window.

With such clever solutions you can use natural daylight without being disturbed by direct sunlight. You achieve even shading and a pleasant room climate. They also make it possible to leave the windows open for post-ventilation without unwanted insects getting into the room.

Air conditioners also have disadvantages

The idea of ​​using air conditioners and air conditioners to cool you down may be tempting at first, but at second glance there are also many disadvantages. Above all, this includes the high power consumption. In terms of health, air conditioning is not the best solution for everyone. Many are sensitive to air conditioning systems and complain about colds.

Those who rely on external sun protection, on the other hand, protect their wallets in the long term, tend to live healthier - and have undoubtedly opted for the more environmentally friendly alternative. In addition, it meets the current requirements of the legislature: Because anyone planning a new building must prove in accordance with the requirements of the Energy Saving Ordinance (EnEV) 2014 and DIN 4108 that there is sufficient summer thermal insulation. This also applies to the energetic renovation of existing buildings, provided that an extension or extension with a usable area of ​​more than 50 square meters is planned. However, this proof does not apply in one or two-family houses if there are shutters or equivalent sun protection systems in front of the windows.

Florian Würth editors

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