Questions and Answers for Sigman 40 ft. x 40 ft. Silver Black Heavy Duty Tarp

A:  Sigman 14 ft. x 20 ft. Silver Black Heavy Duty Tarp is a finished size tarp. Its actual dimensions are usually within -/+ 1 - 3 inches of its nominal sizes.

A:  Hi Marshall. Thank you for your question. According to the manufacturer’s description, the Sigman 30 ft. x 40 ft. Silver Black Heavy Duty Tarp is 11 mil. https://www.homedepot.com/p/Sigman-30-ft-x-40-ft-Silver-Black-Heavy-Duty-Tarp-SBF030040/203124715 Please let us know if we can be of further assistance. Rick_HD_OC

A:  Sigman 30 ft. x 40 ft. Silver Black Heavy Duty Tarp fabric thickness is 11 MIL.

A:  Sigman 40 ft. x 40 ft. Silver Black Heavy Duty Tarp has grommets on all 4 corners and 4 sides. Its grommet spacing is approximately every 1.5 feet on all 4 sides.

A:  Yes, Sigman 20 ft. x 20 ft. Silver Black Heavy Duty Tarp fabric weave count is 14 x 14.

A:  Metal

A:  Sigman 14 ft. x 20 ft. Silver Black Heavy Duty Tarp has hard plastic grommets.

A:  No, it is not waterproof, just water resistant.

A:  Sigman 40 ft. x 40 ft. Silver Black Heavy Duty Tarp's fabric is 11 MIL thick.

A:  I would Think So

A:  Yes, Sigman Silver Black Heavy Duty Tarp does block moisture. For crawl space vapor barrier, you can also use vapor barrier products such as 20' x 100' 10 MIL Husky Yellow Guard Vapor Barrier. People have used tarps in their crawl space because tarps come in many more sizes.