Monday, December 27, 2010

Bomb Shelter Building Guidelines

By Freeda Kissner

Whether a family is building a bomb shelter for small scale contingencies, or the whole community is constructing big bunkers to house a number of families in times of crisis, there are some typical points to remember.

1. Waterproof Features

No one wants to feel like he is within a shower when he's resting. A waterproof shelter is not too tough to build, especially when some of the basics are followed. All materials used for roofing should be resistant to water. A pvc sheet should be placed over the whole shelter.

But the pvc sheets should also be concealed from view. Soil need to be poured over the bunker so that the plastic sheets may also be hidden from view.

2. Natural Trenches

A large gaping hole must be build below ground, but it is also possible to make use of systems that are already there. A trench created by years of corrosion by air or water is more sturdy than a rapidly created one. Loose rocks may create disturbance in the natural balance of the location. Landslides are typical when groups of rocks are displaced all at once.

Caves naturally occurring in the mountains may also be used. What matters is that the place looks stable and provides enough warmth.

3. Management of the Climate

Air flow is significant for a bunker. Vents must be created at various points. A portion of the roof must be designed to let air in. When there is fresh air coming in, the refugees would feel safer.

The shelter must neither be too cold or too hot. For this reason, a fan must be installed. A metal flap may also be connected to the ceiling in order that people can take turns manipulating the improvised fan. The fan must be situated near an air vent to be efficient. If the region is cold, the bunker must be insulated. One way of insulating a bunker is by putting dry earth on top of the roofing.

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