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This radioactive shelter is designed to provide low-cost protection from the effects of radioactive fall out. Its principal advantages are ready availability of low-cost materials, ease and speed of construction, adequate protection from fall out radiation, and limited blast resistance.
Space and Occupancy
The shelter in this design has 32 square feet of area and 128 cubic feet of space and will house three persons.
Availability and Cost of Materials
Most of the materials needed to build this shelter are obtainable at lumberyards. The nationwide average for cost of materials is about $75 per shelter, not including ventilation equipment.
Fallout Protection Factor
A protection factor of about 500 is obtained if the earth cover is 2 feet deep, and a 2-foot thick entranceway shield is formed with bags of sand.
The shelter should be able to withstand a limited blast overpressure of 5 pounds per square inch.
A 3-inch vent at the rear of the structure provides an essential opening to which a pipe extension can be attached. Hand-operated ventilation equipment should be used for more than three persons. The additional cost may be from $30 to $50. Air is exhausted through the airspace left in the entranceway closure.
Tests have shown that one man working with simple excavating and construction tools can perform all necessary work in 20 man-hours. This time will be lessened by about 5 hours if lumberyards provide prefabricated plywood panels and sections.
Structural Life Expectancy
The range is from 5 to 10 years depending on the humidity in the area, drainage characteristics of the terrain, and the effectiveness of the wood treatment (dip preferred) and the plastic wrapping.
This guide will show you that it’s possible to make a low-cost radioactive shelter made out of plywood. Check it out to see for yourself!
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