Quick Answer
Using a ground cloth under your tarp is recommended, especially in wet or damp conditions, as it provides extra protection from moisture and helps maintain a dry sleeping area.
Benefits of a Ground Cloth
A ground cloth, also known as a tarp foot or ground sheet, serves several purposes in a shelter setup. It helps prevent moisture from seeping up into the tarp, keeping you dry and comfortable. This is particularly important in wet environments or when using a tarp in a lean-to setup. A ground cloth can also protect the tarp from abrasion and damage caused by rocks, roots, or other sharp objects.
Choosing the Right Ground Cloth
When selecting a ground cloth, consider its thickness and material. A 1/8-inch (3-4 mm) thick, waterproof nylon or polyester fabric is a good starting point. The ground cloth should be large enough to fit under the tarp with at least 6 inches (15 cm) of overlap on all sides. This ensures that water is directed away from the tarp and into the ground cloth.
Setting Up Your Ground Cloth
To set up your ground cloth, lay it down on the ground, ensuring it is flat and smooth. Place the tarp on top, aligning it with the edges of the ground cloth. Use rope or cordage to secure the tarp to the ground cloth, making sure to maintain tension to prevent sagging. Adjust the tarp as needed to ensure a watertight seal and a dry sleeping area.
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