Are Quinzhees Safe to Construct in Heavy Snowfall?

Design Considerations for Heavy Snowfall

When building a quinzhee in heavy snowfall, it’s essential to design the shelter with a steeper slope to ensure the snow can slide off easily. A minimum slope of 1:1 to 1:2 is recommended to prevent the snow from accumulating and putting pressure on the roof. It’s also crucial to leave a small air gap between the snow wall and the quinzhee’s base to allow for snowmelt and reduced pressure.

Construction Techniques

To build a safe quinzhee in heavy snowfall, focus on creating a solid foundation and ensuring the snow is compacted evenly. Start by digging a hole and packing the snow around it with a shovel or snowboard. As you add more snow, use a long-handled shovel or a snow probe to test the depth and density of the snow. Aim for a thickness of at least 6-8 inches (15-20 cm) to provide adequate insulation and structural integrity. Use a snow saw or a large knife to shape the snow into a dome or cone shape, leaving a small entrance and exit.

Maintenance and Upkeep

Regularly check the quinzhee’s condition, especially after heavy snowfall, to ensure it remains structurally sound. If you notice any cracks or weaknesses, repair them immediately by adding more snow or recompacting the existing snow. Keep the entrance and exit clear of snow to maintain ventilation and prevent moisture buildup. Consider adding a windbreak or a snow anchor to secure the quinzhee and prevent it from being blown away or collapsing under heavy snow loads.