Why Is an Igloo a Good Structure?
An igloo is a sturdy structure made of easily obtainable materials. It protects its inhabitants from the elements and is easy to build. It is a prime example of man's ability to adapt to and use nature to his advantage.
Structure
Igloos are constructed with one of the weakest materials known -- snow. Its spiral design and self-supporting domed shape make it strong enough to withstand arctic blizzards, lose half of itself and still continue to stand. It requires no interior support system yet can support the weight of a man balancing on its roof. The key to its strength is the structure of the snow; it must be windblown and compact enough to cut and shape into blocks.
Features
Inside the igloo, heating causes the walls to melt. Continous melting and refreezing causes layers of ice to build up on the inner walls, adding to the overall strength of the igloo. A tunnel at the entrance traps cold air, keeping it away from the living area.
Benefits
Snow and ice are natural insulators. Once warmed, an igloo maintains its inside warmth with little more than body heat and the light of an oil lamp.
References
Resources
Writer Bio
Jordan Jones has been writing since 1995. She has completed two novels, and a memoir. She holds a Bachelor of Arts in English from the University of Arizona. Through the years she has earned certificates to teach English as a foreign language to adults as well as to children.
Photo Credits
- igloo image by Vladislav Gajic from Fotolia.com
- igloo image by Vladislav Gajic from Fotolia.com
- Snow waves image by Ciaky62 from Fotolia.com
- ice image by Sammy from Fotolia.com
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