Dry wooden

First, the rafter system is mounted. Its step should be at least 30 and not more than 90 cm. In places of location of attic windows, chimneys, antennas and other roof elements, the crate is continuous. It is made of dry wooden beam impregnated with an antiseptic solution. To install the tiles, it may not be required such an unit as Tarsus 888, but it will be indispensable in the construction of the foundation, fence, laying communications and drilling wells in the suburban area.