Skip to main content

Ready to hire?

Post your job in minutes, browse real reviews and choose who to speak to.Post a job

Need some tips or advice?

Ask a question
Bricklaying & Repointing

Inner cavity wall with lumps of cement hanging off bricks

Anonymous user 23/02/2024 - 2.46 PM

I am having an extension done and I regularly get building regulation staff to come and evaluate my property at each stage of work to see if it meets standards. If the work does not meet the standards or if they can fault any piece of the work, then I am more than happy to take their comments on board and do not feel aggravated as I feel that it will only benefit my family home in the long term. BUT today something has really confused me and led me to be quite angry and to seek professional help. Previously the inspectors have never faulted the work but today an inspector picked some minor things which I understand, but also said the side of the brick which can be seen in the cavity wall has lumps of cement rather than a clean pointing finish that it has on the outside and that this needs to be cleaned. I don't know if this is required and essential and I don't mind if it is, but I can't believe that this was never pointed out before as know all walls on the sides of the extension have reached roof levels, so cleaning through the cavity wall is easy in the places near where the window and doors are going, but in other places it is not possible! Please help and share your views as I have no extended knowledge on this.

Are you a tradesperson and able to answer this question?

1 Answer

Anonymous user

Hi juggy Unfortunately a clean cavity wall is part of building regulations. This should have been picked up at 1st lift of scaffold. If the lumps of mortar are encroaching the cavity this can cause cold bridging. What you can do is rod the cavities with a piece of roofing lath to knock the snots off, snots being the term used for the lumps you're talking about. These lumps then go to the bottom and then you need to remove either block from inside (every other block) and clean or every 5th brick and clean from the outside. As I'm a bricklayer it is good practice to leave every 5th brick out along floor level to save the hassle you are having. If you require any further info please feel free to ask Regards John Solid building services
Answered22 August 2013
7