 For this reason it is important to check the BBA certificate of the damp-proofing system to ensure that it is valid for use where replastering is not being carried out.It is best practice to delay replastering and redecoration for as long as possible following rising damp treatment, but this obviously creates inconvenience to the occupants of the affected building.BRE Digest 245 states that "While the wall should be allowed to dry for as long as possible, replastering can follow, providing porous decorations are selected.