You can put a thin sheet of dsp – initially it will not be noticeable, but after a few months will be visible to the structure and configuration of the floor board under the dsp, and it . Linoleum can be set for 110 rubles – domestic, it is rubbed in places of intense cross-country for a couple of months, and can be a commercial for 290 rubles per meter. Lumber can be no ognebiozaschitoy handle, because underneath it is not checked. All these moments can easily hide in the preparation of the offer, but I believe they need to know they describe, and selectively tested. Up until the opening of sexes as early as ready-made modules. His ceiling structure similar to that of sex.

The most important thing – the top layer – it is a drum and sealed (for example, Guerlain) or hermetically welded. Further there are lags on 100 * 50 mm and above, they do not "carry" load such as is sex, but because of the thickness of the insulation may be large in size. Step between 900 mm. top and bottom of the lag fits discharged board. On top of 40 mm thick, the bottom of 25 mm.

The whole timber is processed ognebiozaschitoy. At the bottom layer of boards "Tabs" finishing the ceiling. Insulation is placed between the lag in polyethylene. The savings here could be due to – the quality of metal (zinc or thickness) and sealed (as in welding, so and during milling), processing, packing and step thickness lumber.