What else can be painted with paint after minium roof ?

Roof

long iron painted with red lead, but the paint is enough for a couple of years .Maybe there is a better color than the more "Soviet" minium ?

What is a flat roof ?

What are their characteristics?How do they differ from ordinary ?For public buildings are required?

How to cover the roof in the barn for the animals from inexpensive materials ?

We

brick barn roof was covered with slate and covered with slag, but everything collapsed in one day. In the barn we want to keep chickens goat and sheep. When trapezoidal sheet cover to be cold in the barn ?Thank you in advance!