Quick Answer
To improve a debris hut's resistance to rain, increase the angle of the roof, use more and larger leaves or branches as a waterproof layer, and ensure a watertight seal at the door and any gaps.
Improving the Roof Angle
A steeper roof angle allows water to run off more easily, reducing the risk of pooling and seepage into the hut. Aim for a minimum angle of 60 degrees, but ideally as steep as 80 degrees if possible. This can be achieved by placing the supporting poles at an incline and securing them firmly.
Adding a Waterproof Layer
A layer of large, overlapping leaves or branches can provide a waterproof barrier, protecting the interior from rain. Use a minimum of 5-6 layers, with each layer slightly overlapping the one below it, to create a solid barrier. You can also use plant sap or animal fat to waterproof the leaves or branches.
Sealing Gaps and Doors
Ensure a watertight seal at the door and any gaps in the hut by using a combination of plant fibers, mud, and leaves. Apply a thin layer of mud to the gaps and seal with leaves or plant fibers. You can also use a piece of bark or a large leaf as a door, securing it with a cord made from plant fibers.
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