In the terrace covered with a steel roof, glass wall of the house, the top with resin tile or asphalt tiles
Color plate is hard to say, the general and the thickness of the general engineering algorithm is to do our own paint and other anti-corrosion situation, 2mm thick color tube 3 to 5 years is no problem, of course, with a thicker or better stainless steel, But the cost is high, a long time the paint off the steel plate will certainly be corroded. Leakage will only leak from the riveting place, coated with asphalt or filled with glue can effectively rain, but the gums are afraid of the sun, so the general about 2 years to make up.
The glass is done, sealed with glass glue, and you can add the border, how could leak, durability, not to mention, as long as no chop is not bad!
If you pay attention to cost, it is better to do with the color plate with foam or rock wool insulation layer, foam insulation layer is very cheap, rock wool is fire, the key to see what you use this house, there is no fire may.
I do not know what extent your winter and warm summer to achieve. But it is double glass warm words, then continue to use the glass top well, and then do a layer of reflective sky, but the cost is much higher than the use of tile. But beautiful, translucent good, you can also meet the requirements to meet.
There are also new types of insulation materials, the price is not expensive, but due to the lack of national standard quality varies, and some also contain formaldehyde and other harmful odor, mainly industrial and mining enterprises to use.