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Bermuda - Masters of Water Collecting
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Bermuda residents are the masters of survival when it comes to fresh water collecting.
Bermuda, unlike most of the modern world, has no source of fresh drinking water. They have learned to take advantage of rain to collect all the water they need to survive. They do this by fitting all thier houses and buildings with a special roof, designed to collect and capture rain water and keep it clean.
To build a traditional Bermudian roof, masons mortar rectangular slabs, or "slates," of local limestone to each other over a hip-roof frame. Then they apply more mortar over the top and edges of the slates, filling the joints and giving the roof its traditional stepped shape. Along the lower edges of the roof, they sculpt a long concrete trough for a gutter, which directs rainwater to a pipe that filters it and funnels it into a cistern buried alongside the house. Then they give the whole roof structure a thin wash of cement. Finally, to keep rainwater as clean as possible on its way to the cistern, they paint the roofs with special nontoxic paint (a modern replacement for traditional lime wash), which must be reapplied every two to three years.
The result is a strong, nearly self-supporting structure that holds its own against the weather while sending clean water into the tank. It's the best and cheapest way to supply fresh water — up to 30 gallons per person are needed per day — to the 60,000-plus residents of this tiny island nation. It's also what accounts for Bermuda's signature white rooftops, perfectly placed amid the palms and set off by the pastel houses for which the island is famous.
