The absolutely fundamental difference between the outer and the inner louvers is the boundary where the heat from the sun rays gets. In the case of outdoor, it is easy to say that the heat stays in front of the windows themselves. This solution holds up to 94 percent of the thermal energy, and the sun is virtually not let into the interior.
The variant of the interior blinds is often more difficult to retain thermal energy. The warmth enters the room through the window and gradually heats it up, the blinds serve as a shielding aid so that the sun does not fall into the room and does not heat it even faster. Even at maximum pull-up, the temperature in the interior rises. In addition, the shape of the lamella causes the shade to be far less powerful than the outer blinds. On the contrary, thanks to the varied shapes of the slats they are able to shade much better.
"The exterior blinds present more modern and functional solutions on the front than the inner blinds. However, the interior screening is probably still the most frequently used shading element in the Czech Republic because of too much conservatism or lack of awareness. However, the demand for outdoor blinds rises year after year, we have seen a year-on-year increase of about 30 percent, despite the higher purchase price of this variant, " says Lubomir Valenta (Lomax).
Even though the price comparison of the basic models is based on both venetian blinds, the taxes are behind-the-clock technologies. Other reasons for lower prices are simple assembly or less production and material requirements. In the case of outdoor shielding, it is used multiple times - especially for reasons of greater resistance. This occurs both during precipitation and in severe wind gusts. The exterior blinds make it windproof up to 62 km / h, up to seven out of twelve degrees of the Richter scale.
In terms of modes of control, the external option offers more modern ways. While the interior blinds are controlled in the basic variant manually, whether with a lace, chain or handle and electric controls, it is a surcharge, the external blinds go further than user comfort. A more common option is to connect the motor with a wall switch or a remote control. "The electric control is a standard in the case of outdoor blinds, just before the installation is just to think about securing the electricity supply to the exterior," adds Valenta.
A great advantage of outdoor shading is its multifunctionality. Except for the already mentioned shading and thermal insulation, it acts as a safety element. Thanks to the rich possibilities of louvre programming, it is possible to set the lamellas in a time when the home is abandoned so that after a certain period of time they can be pulled or more light is released into the room. For a potential thief, it means the signal that people are inside, so he chooses a different location.
Outdoor blinds are a more modern and more advanced option among shading systems. The interior variant is superior to the ability to insulate the interior to the maximum and to prevent the heat from penetrating it. Thanks to a larger selection of slats, it offers users complete shading or great resistance to wind. Inner shielding, in addition to looking out of outdoor weather conditions, is mainly attracted by a lower price. But it is redeemed by a worse function, whether in terms of shade intensity or user comfort.
Source: tz, edited editorially
