What time of joints were used to make the igloo?

Igloos are primarily constructed using blocks of compacted snow, which are shaped and cut to fit together without the use of any adhesive. The joints between the snow blocks are typically made using a combination of butt joints and lap joints, where the blocks are stacked and interlocked to create a stable structure. The curvature of the igloo helps distribute weight evenly, enhancing its stability and insulation properties.