Quick Answer
Common mistakes when constructing igloos include using blocks that are too large, resulting in a weak structure, and failing to shape the blocks to fit together snugly, leading to gaps and reduced insulation.
Inadequate Block Size
Using blocks that are too large can lead to a weak igloo structure. Ideally, blocks should be around 6-8 inches in diameter and 4-6 inches in thickness. This size allows for efficient stacking and helps to distribute the weight evenly. If blocks are too large, they can cause the structure to collapse under their own weight. To avoid this, use smaller blocks or break larger ones into smaller pieces.
Insufficient Block Shaping and Fitting
Failing to shape the blocks to fit together snugly can result in gaps between the blocks, reducing the igloo’s insulation and making it more prone to collapse. To minimize gaps, shape the blocks by cutting or scraping them to fit together like a puzzle. This technique requires patience and attention to detail, but it is essential for building a strong and safe igloo. By fitting the blocks together tightly, you can create a more efficient and effective shelter.
Incorrect Block Placement
When placing blocks, start by creating a foundation of three to four blocks, which should be slightly larger than the others. This foundation will provide a stable base for the rest of the igloo. Place each subsequent block on top of the previous one, making sure to align them carefully to maintain the structure’s integrity. As you build, ensure that each block is slightly smaller than the one below it, tapering the structure inward to create a strong and stable shape.
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