In normal weight pressing on brush in 400 g can be painted the same brush of 600-800 m2 roof. On a new roof brush wear smaller than the old one. When painting paint shade along the slope. Above all we must paint the roof slope, and then to work on the ridge to the slopes. The paint on the brush you need to dial in a little shade and its a thin layer without coarse bands and streaks.
Thick layers of paint will crack over time, will be delayed in the cracks of water, destroying the roof. Work on the roof should be in the boots or shoes in the usual, but felt bound soles that do not slip on the steel and do not destroy the recently caused a layer of paint. If the roof has no enclosing grids, it is necessary to attach a rope over the rafters, purlin or beam, but not for the furnace and other tube. Staining gutters shall be subject to the same conditions. To the tube were longer, before painting the outside dismantled, cleaned of dust, dirt, especially inside, painted it over three times or odindva simultaneously with the coating and the outside and then set into place a well-seated. You must know that the steel roof rust not only from outside but from inside, ie from the attic. Usually this occurs between the purlin.
That part of the roof, which rests with the purlin, does not rust, as protected by wood (planks). Rust is because through the attic floor is warm air. From experience know that it is often against the purlins are rusted places. To protect the roof in these areas should be stiff brush or a soft wire brush to clean between the purlin steel from rust, prepare paint and stain in one, and possibly two times. This will prolong the life of a steel roof. If covered with galvanized roofing steel roof starts to rust, it is not wasting any time, the rust should be removed, cleaned the place primed with liquid paint and painted over twice.