The basic purpose of winter garden is to maintain heat at the lowest temperatures outside, leaving greens corner in the dwelling. It is possible to grow up there not only flowers, but also tropical plants which will please owners with fruits.
Important indicator of quality, except good heat conductivity, is the absolute transparency of walls as sunlight even to a large extent, than to the person is necessary for plants. It is necessary to use for construction the transparent and nonspottable materials which are missing not less than 80% of sunshine. Only in this case plants will please in flowers and fruits as their opportunity will normally develop. And the third indicator of quality will be bearing capacities of materials, resistance to corrosion, durability. The winter garden is the capital building which has to stay many years, without collapsing from wind, hail or abundant snowfall.
Therefore the metal framework fitted by film is not winter garden. It is required to find more suitable option where the framework will be supporter, and material of walls will not be subjected to physical impact.
The winter garden is most often made of glass, organic glass, polycarbonate, PVC of packages. Other materials will not approach on the flow capacity of light, or have low heatefficiency, high fragility. Nevertheless the most popular option is the winter garden from glass, when it comes to durable constructions. The main advantage - good bearing capacity as it easily maintains hail, snow and many other influences. High flow capacity of light is one more plus, glass misses up to 98% of light, so, plants receive quantity of the sun, necessary for the growth.
For the structure of small, 3х4х4 m, winter garden use of glass 12-13 mm thick even as supporter of walls is sufficient. If high-quality lacing metal and furring, for example, squares of 100х100 cm is made, then the glass thickness can be 3-4 mm. Glasses are very easily washed from pollution of any kind, usually sufficient is to water them from above from hose, to pour the cleaning and cleaning agents and again to wash away. The lack of glass and obstacle to its use can be considered unless its high cost, but it can be compensated somewhat if to buy glass of smaller thickness and to do dense metal lacing, compensating durability.
One more minus of glass - very fast heat emission, glass practically does not detain heat at all.
The base for high-quality construction is obligatory as only it can save construction from the distortion arising over time. Enough base up to 30 cm in depth and 10-12 cm thick. All to make the room of square shape with roof easier at an angle that snow masses during the winter period did not linger on it. To reduce the cost of works, many resort to constructions from polycarbonate. It has many advantages - easier weight, it not such brittle as glass, and besides is bent and it is possible to give it practically any form. The transparency of polycarbonate of 88%, and it meets requirements for greenhouses. Bearing capacity of polycarbonate quite good, but heatefficiency is also low.