I have a terraced house near Malaga, with a terrace of 7m x 4m approximately, where I want to put (in all of its extension, or in the middle) a pergola of white aluminum, with a moving roof, and beneath an awning sliding, with the intention of using it also in autumn and spring, and leave terrace furniture that does not deteriorate too much; and in the future to make an enclosure complete. Is facing the sea (south orientation), is not whether the best alternative is to put glass or polycarbonate (and of which type, I see that there are many). I don't want a compact roof because the sunlight is essential to be the largest possible, but not that you are this type of roof, if you have problems of leaking or noises with the rain, or if you give a lot of heat in the summer (that's why I want it to be mobile) or do you recommend some other option.
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Each option has its advantages and disadvantages compared to its alternatives. The glass maintains transparency for more years and because of its resistance to chemicals, clean more easily than plastic. It is more environmentally friendly since it leaves less polluting waste, but requires greater energy expenditure for their production. It is also a disadvantage your frajilidad Any of the two options will entail an increase of the temperature by the greenhouse effect, although its different thermal conductivity also ceased to notice their effects. The glass will heat and cool more quickly The plastic is easier to work with, it has a greater tolerance to bending and torsion, and is lighter, but tends to yellow with time, dry out in the sun and losing benefits, it is also more noisy in large part due to its smaller mass If the work is done well, there should not be filtaciones for a long time. When it deteriorates, over the years, and have to be repaired, it will be easier to repair the glass than plastic and easier to replace plastic than glass. From here you will be your who need to assess the pros and cons of each option based on your interests and personal convictions
[www. ventanasconfort. Is](http://www.ventanasconfort.es/) Hello! A double-glazed, simple, and a polycarbonate of 16 mm, have the same thermal transmittance. With double glazing with solar control, you'll be able to obtain results much more satisfactory than with a polycarbonate, and a reduction in noise, since the polycarbonate, with the rain, causes a noise much greater than on the glass. The problem is that, to be glass for a roof, they should be laminated safety glass or tempered by what your cost will be much higher than that of a polycarbonate. In terms of the transmission of light, in principle, is greater in the glass, but it will depend on the type of glass with solar control, as there are some models that take a very substantial amount of money of light, greater than that of the polycarbonate. That's why I recommend a glass type Guardiansun, and the awning, because this way you will achieve a penetration of ideal light, with a solar control optimal. By the way, the ideal location of the awning is above the ceiling mobile, as well will perform its function before the sun penetrate through the moving roof, not after. In terms of leaks, it is ideal that you focus on companies that create profiles for mobile ceilings, as this will ensure the sealing of the same, and the absence of leaks. Does not serve any profiles. I have known cases of companies using profiles of normal window and power and the fit, but I think that the risk of leaks is very large, do not be cross section specific. There are several companies, such as Cristaler, Marketer of mobile Ceilings, etc..., you can contact them, and tell you the nearest dealer. In terms of the response **[hamish anonymous fast](http://www.todoexpertos.com/usuarios/hamish), I think it's great, and you should follow their directions.**
My advice is that you put an awning sliding, and in several sections, so that you can play with the light that you, more in spring and less in summer, in winter to let the awning picked up. With a canopy in the wall of the house you can just pick up and not removed throughout the year. In Malaga, I do not advise cladding glass, as I do not advise on almost any site except in cold areas and oriented to the north or to greenhouses. I live in Extremadura, and I have seen enclosures on balconies and terraces that then leave the window open almost all the year, because the heat becomes almost unbearable in the spring, summer and fall. I have a yard similar in size and have three awnings with the game to close and open in the spring and fall and leave it covered all summer. In winter and when it rains or the wind blows, remains folded under a hood that is the overhang of the terrace on the upper floor. It gives Me good results, it is cheap, versatile, and if you repent you can opt later for a option more risky.
If you are looking for on the Internet "glass reinforced with wire" you will see what I mean. It would also, however, it would also serve laminated glass. As for sandwich panels that you mentioned, also metal there are + polyurethane + wood. It is a matter of taste. I got a terrace covered in my house, and under the sandwich panel, set a ceiling of the same material that is used for sockets to hide the metal armor support.