094 - Cozy Shelter
Ustyna Antoniuk, Khrystyna Teliuk, and Pavlo Krainskyi
The idea of our project is to create a small cozy house, that would be highly ecological and efficient and would fit into the environment of backwoods naturally. Therefore we tried to use interior space, sun energy and materials in the most reasonable way. We use spruce framing, wooden wall cladding on the exterior side, spruce plywood on the interior side, steel in the basement, asphalt on roofing, water and vapour barriers and cellulose insulation, which is made of fully recycled materials (newspapers) so is highly ecological – has 0% embodied carbon and low embodied energy coefficients.
A large south window allows to take most sun light and heat. There is a small window on the east high under the roof to ventilate the building. To limit the sun heat in the summer we use simple Roman shade on the inside. The roof slope direction was chosen to provide more space above two-story bed and less above wood stove and table.
To save the space inside, we set a large firewood shelving on the terrace. Terrace is also a place to spend time and communicate.
The house is separated from the ground to prevent moisture problems and to make the the lowest interference into the environment. To avoid slipping down such a steep ground the footing was designed with the tube submerged into the ground. Footing height is adjustable (principle of jack was used).
According to given topography the house was designed on posts of different lengths to fit the steep terrain. If you want to put the house into another place with radically different terrain, you need to change the length of wooden piles by cutting them beforehand.
Asphalt shingles are used for roofing, because it has low embodied carbon coefficient and is sustainable in the same time, unlike timber, that tends to rot.
Energy can be provided by solar panel but we consider that using one solar panel for a single house is quite expensive and inefficient. In our opinion it would be better to make one suntrap that would provide energy for all cabins.
There are alternative ways to heat the house which allow to save wood, using recycled materials and sun energy (see drawings, page 6).
According to location of the building place we calculated sufficient amount of insulation, to provide proper R-value. New Brunswick is located in B climatic zone, so we need R30 for floor and roof and R25 for walls. Using R-value calculator, we have ascertained that 8” for walls and 10” for floor and roof is enough. It determine also the framing thickness.
Here are embodied energy & carbon coefficients of our materials:
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