Can I use “green” sheetrock for outdoor applications of stone veneer?
A.) No. Green sheetrock is not designed for long term usage outdoors in the weather and we do not recommend using this product outside. The numerous penetrations from nails and screws will make the sheetrock very susceptible to water damage and will weaken the structure, particularly if a freeze/thaw cycle is experienced. The use of a moisture barrier may slow down water damage, but it will not prevent it. Cinder blocks, cement board, and plywood (with moisture barrier) are recommended for most outdoor applications.