Vapor Stake

VaporStake is a solid plastic construction stake that can be easily
used with the vapor retarder and its components to set interior forms,
screeds or shear wall templates without violating the vapor retarder as
specified in the ASTME 1643-11 (sec. 8.4 and 8.6) and ACI 302.2R-06.

VaporStakecan be used with either a solid plastic sheet type vapor
retarder that meets the ASTME 1745-09 standards or a sprayed on type
vapor retarder.

VaporStake  is a patent pending, made in the USA of solid recycled
PVC, and is permanently left in place.  Because of this it can help with
LEED certification.  It listed in the product directory.