Abstract: A containment tarpaulin is formed of an open weave knit stretch fabric having a major pore size which provides sufficient porosity to prevent lift of the tarpaulin due to airfoil effects. The open weave construction, particularly when polyester yarns are utilized, additionally provides resistance to tears, punctures, and abrasion. A rip-stop construction, preferably in the form of solid fabric areas extending across the width and length of the fabric, may be added to improve the strength of the fabric.