Quick Answer
Utilize snow to improve a shelter's heat retention by adding a layer of insulation, creating a windbreak, and reflecting sunlight. This can be achieved by building a snow wall or a quinzhee, and also by using snow to line the shelter's interior. This will help keep warmth in and cold out.
Creating a Snow Wall
To create a snow wall, start by clearing an area 3-4 feet wide and 6-8 feet long. Pack the snow down to create a firm base. Then, start building the wall, using a shovel to scoop up snow and piling it up against the shelter. Make sure to leave enough space between the wall and the shelter to allow for air to circulate and prevent moisture buildup. Aim for a wall height of 3-4 feet to provide adequate insulation.
Lining the Shelter with Snow
To line the shelter’s interior with snow, start by packing the snow down to create a solid base. Then, use a shovel or your hands to scoop up the snow and place it against the walls and ceiling of the shelter. Make sure to cover all surfaces, including the floor, to provide maximum insulation. A layer of snow that is 2-3 inches thick should be sufficient to retain heat.
Using Snow to Reflect Sunlight
If the shelter is exposed to direct sunlight, use snow to reflect the sun’s rays and help warm the shelter. Build a small snow wall or mound on the sunny side of the shelter, or create a snow-covered reflector using a piece of plastic or a tarp. This will help reflect the sun’s rays back into the shelter, providing additional warmth.
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