A roof is the structure to the top part of a building, it protects the building against the effects of weather.
A flat roof is a roof having no slope, or one with only a slight pitch so as to drain rainwater.
A roof is the structure to the top part of a building, it protects the building against the effects of weather.
A flat roof is a roof having no slope, or one with only a slight pitch so as to drain rainwater.