Which material is better to choose
The most budgetary options are plastic models. However, their deficiency is delicious in short -lived. They have proven themselves quite well in Europe, but there are no such bright sun and such large mood swings as in our country. Under the influence of high temperatures, the plastic is expanded and deformed, and at low temperatures — on the contrary, it is compressed and becomes very fragile. In other words, in the summer they sag and twist, and in winter one snow that has moved from the roof can break a plastic pipe.