Slats (profiles), aluminum and steel, come in different thicknesses and densities, depending on the method of manufacture. For example, take two thin sheets of aluminum (steel) and between paving foam, and then fasten it all special device, reminiscent of Press. Incidentally, the polyurethane foam used as heat and sound insulation. So the shutters are made in this way shall retain 30 – 40% of the heat in the room. There is another method manufacture of roller shutters. Profiles made with this technology, called extruded.
Their production process similar to cooking meat. Profile of the desired form of "creeps" from a special machine – extruder, as of meat grinder. Slats are obtained thin, but more stringent than those made by the previous method. As I have demonstrated specialists "Radian", the panel can withstand more than 50 blows with a sledgehammer. The service life of aluminum extruded roller shutters – 4 – 5 years, and steel – 2 – 3 years. And again, shutters, made of steel, is much heavier and more expensive than aluminum. After all, heavy construction, a more powerful electric motor, which of course, not cheap. In addition, the steel shutters require a perfect installation – the slightest misalignment during installation construction will entail the load on the slats.
This, in turn, affect the ease of opening and closing the shutters. So it is possible that not once have to use the services of repair and technical service. It is no coincidence, according to specialists in the last five years in Russia, mainly bought aluminum shutters, rather than steel. There are two types of automatic control over the construction of wooden window: push-button and remote. Push-button control is easier and cheaper (15 – $ 30). External buttons control switch recalls, and it is the same as the switch is mounted to the wall. By clicking, you can omit or raise blinds. If desired, click equipped with lock. In this case, simply touch the switch to design went up or down. If you choose to push-button switch in the "bezfiksatornom" performance, in order to lower or raise the blinds, it should hold up as long as the blade is not rises or falls not to the end. To stop it, simply remove your finger from the button. Remote control – the "cool" and convenient way to control the shutters. But it is also the most expensive (350 – $ 400). You probably already guessed that the shutters are served with a command console that resembles the TV remote. Just press a button – and the shutters immediately set in motion. Remote control is reasonable to apply where the set several shutters: to raise the security shutters in several rooms on different floors. Of course, if you do not forget to connect them to the control center. Automatic control, as well as wooden windows glass on request can be completed with a combined alarm system electric motor. If you have an urgent need to constantly open and close the blinds in the house, and electricity cut off very often, this system will be for you just magic wand. In this case, close or open the shutters can be manually, using Cardano, which is installed next to the box: just twist the knob, and the shutters come in motion. It is true that emergency management is a 1.5 – 2 times more expensive than electric. To lock the system, you need to spend extra and put the automatic or mechanical lock at the bottom of the canvas.