Mesh tarpaulin differs from heavy duty PVC tarpaulin mainly in its design and primary function. Mesh tarps are designed with spaces between threads, offering breathability and light filtration, making them perfect for applications where airflow is necessary, like shade for kennels or gardens. Heavy duty PVC tarpaulin, on the other hand, is fully waterproof and designed for maximum protection against the elements, which is ideal for covering items such as construction materials or outdoor gear to keep them dry. Depending on your needs, both have unique attributes that relate to different aspects of outdoor usage.