Eli5: Why do houses have a triangle shaped roof? Why not flat?
In: Engineering
Some houses do – but many would be found in drier parts of the world. In more temperate and cooler parts, you would need to be able to have snow/rain easily disperse from the roof instead of it pooling. If this happens, especially with snow, the weight of it might be structurally damaging. With rain, this would cause puddles to form which could leak into the house.
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