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.
Cleaning roofs can be dangerous work. Algae that becomes wet is often as slippery as wet ice. Try to work on dry parts of the roof and reach sideways to scrub and clean those parts of the roof that are wet with cleaning solutions.Once a roof is clean, they often are not too slippery if they are wet.leaning roofs can be dangerous work. Algae that becomes wet is often as slippery as wet ice. Try to work on dry parts of the roof and reach sideways to scrub and clean those parts of the roof that are wet with cleaning solutions.