Question

If you are building an igloo, which of the following statements are true?

A. Cut blocks of similar size and miter the ends to form the curve.
B. The igloo is constructed of concentric rings of stacked ice blocks with each ring (or "course") completely level.
C. After being set in the wall, each block's top surface should be shaved to slope down towards the center of the floor.
D. Cut the entry access after the whole structure is completed.
E. Provide a fist size hole at the top for ventilation.

Answer

All the statements except "B" are correct. The ice block "coursing" is not level. The blocks are set in a ramp that spirals up from the base and around and around to the top in one continuous sloped course.

Learn more about building igloos in ArchitectureWeek No. 361.