听说老房子需要'呼吸' 重用石灰现代材料可使用或将浪费时间和金钱

I live in an old cottage - all held together with woodchip,I am a single women and live with my 19 year old who is very keen to do some of the work on the house to save money.He is desperate to remove the old plaster from his bedroom walls and replace the ceiling and the lath & plaster, which to me sounds like a job for a professional.He has bought all the tools for the plastering himself.It has become a constant battle between us of what I should let him do.( he did plaster a wall in his room,which for a complete beginner wasn't bad) When I get builders around to give advise he always says they don't know what they are talking i.e recommending damp proofing not suitable for old properties?i传统石灰法我听说并不容易使用谢安妮