Patching walls

[JDLDIY]

The plaster has come away form a wall of mine, it now need replastering. Thing is that there are several holes revealed between the bricks where either bricks have been ommitted or they haven't bothered with enough mortar, so that I could do with filling them as it is a wall which will have loads of fixings driven into it. What should I use? I'm not talking brick sized holes but maybe one third brick sized at the worst. I'm bound to drill through the plaster straight into one and make a mess of things!

Many thanks

JD

 

[sammoseley]

fill all holes with sand+cement and I would personally then lay on a render coat of the same stuff, scratch coat + level top coat and skim with multifinish. or you could use a backing plaster eg. browing/hardwall as your backing coat this will give a warmer wall than sand+cement less condensation. if you dont want to do the backing plasterwork you could stick plasterboards on but again fill the holes with sand+cement first.

 

[JDLDIY]

Many thanks for the advice Sam. Unfortunately I had to get this done and not knowing what to use I ended up using a ready mixed bag of mortar. Hopefully it'll be up to the job, I made a fairly dry mix.

JD

 

[JDLDIY]

For future reference what mix of sand and cement would you have used?

 

[sammoseley]

4:1+plasticiser for the rendering, I would use mix of sharp+soft sand
4:1 or 3:1 soft sand if your just doing the pointing, 3:1 if its big holes

just a guideline depends on type of wall, surrounding work, thickness of coat. cheers sam