wall problem

[alexllever]

my house wall recently gets affected with damp. i think there must be something wrong with the plastering because walls started to peel off by pieces and the damp left ugly "pattern" on it as well. should i take all the old one off first and then plaster again? or any other solutions no need to re-plaster?

 

[dave_39]

Before you do anything you should first find the cause of the damp