Thus it was the interplay of these economic, political, and social factors and forces that led to the scramble for Africa and the frenzied attempts by European commercial, military, and political agents to declare and establish a stake in different parts of the continent through inter-imperialist commercial competition, the declaration of exclusive claims to particular territories for trade, the imposition of tariffs against other European traders, and claims to exclusive control of ...
As general advice: RoofCoatingScam does not recommend regular roof cleaning just for the sake of improving the appearance of the roof. Foot traffic can damage roof tiles so we only recommend roof cleaning/de-mossing when it is absolutely necessary, ie when the moss is preventing water from draining off the roof.
Roof Cleaning Average Costs. The actual cost of roof cleaning depends on your location, the complexity of the job (i.e. roof size and pitch and the height of your home), and other factors. The following prices are only general estimates.1  On average, roof cleaning pricing is $.15 to $.30 per square foot, or $15 to $30 per square (a square, in roofing terminology, is equal to 100 square feet). 2  For an average-sized roof of 1,500 square feet (15 squares), that s a total cost of approximately $250 to $500.oof Cleaning Average Costs. The actual cost of roof cleaning depends on your location, the complexity of the job (i.e. roof size and pitch and the height of your home), and other factors. The following prices are only general estimates.