Concrete Walls

Hello to all,

Whilst trying to research a problem I came across this forum that looks very helpful indeed. I have created an Album of my ongoing Lounge project (and woes) for anyone who needs to see some images of what I am going on about.

Basically I started off with what I thought would be a small job, its turned out to be a bit of a mission now.

I have a turn of the last Century (1900's) cottage style terraced house. Whilst trying to do some work I have found that my plaster is severely blown in places and had to be removed, however I did find out that what I had classed as 'Mud and Mouse Pube walls' is actually lime plastered walls.

I have taken nearly all the blown areas away and I was looking at dot and dabbing or putting up some beading and attaching plasterboard to this. I suppose I do have a 3rd option which is to go with lime plaster again. My walls are concrete and in areas I do seem to have a lot of aggregate.

I would welcome any suggestions as this is outside of my knowledge base.

Dean

hi m8 whats you game plan to cover the walls over id start by filling the big holes with sand&cement.
then if the walls are strong to save time and a lot of money d&d the walls
9.5mm boards then 2 coat skim.
or f&s the walls wth hardwall then 2 coat with muilti finish.
by the looks of it will take some packing out too get the walls plum and flat. to f&s id d&d
as for the lid m8 12.5mm plasterboard 6ins centers skrim the joints then two coat finish with muilti.
its a lot if work still to go m8 were in essex are you as im from essex
and i know a load of plasterers that will help you out.
Im now in kent but its not far away

drop me a line m8 think i can help you out on this one

i would use sand and cement on the walls being concrete i dont see the need to have to have to redo them with lime, i would also consider redoing the ceiling as it hasn't been put up right it hasn't been staggered properly, you have a join going all the way across the middle of the ceiling, i can see that the ceiling is going to be prone to cracking

there is that steve your right you can prep the walls then float & set
with sand and cement id just use 4:1 scrach coat over them walls
then 2 coat finish

Thanks for your replies guys..

So sounds like best plan is to go over the walls with sand and cement 4:1 (especially to patch all the bad areas) then just D&D with plasterboard followed by a skim all over, is this correct?

As for the ceiling I really don't fancy going through taking it down if I really don't have to..It was a pain to get up the last time. Are we talking that it will/could crack quickly (couple of months) or a little longer (couple of years). If the board is screwed at more points along its perimeter would this help? Also if the boards are all taped along the joins does this not stop it from cracking?

Dean

Deano1971 said:

Thanks for your replies guys..

So sounds like best plan is to go over the walls with sand and cement 4:1 (especially to patch all the bad areas) then just D&D with plasterboard followed by a skim all over, is this correct?

As for the ceiling I really don't fancy going through taking it down if I really don't have to..It was a pain to get up the last time. Are we talking that it will/could crack quickly (couple of months) or a little longer (couple of years). If the board is screwed at more points along its perimeter would this help? Also if the boards are all taped along the joins does this not stop it from cracking?

Dean

Click to expand...

deano i would float&set those walls with s&c then skim, as for the ceiling, ceilings should be staggered, this makes them stronger and less likely to crack, what i see from the pic in ur ceiling is that it hasn't been staggered properly, you have a join running all the way across the ceiling,which means that if you do get any cracks being from movement or what ever your going to get as crack going all the way across, your ceiling is not as strong as ceiling that is staggered, it is up to you if you keep it that way, all ceilings are taped at the joint but this do not mean its not going to crack, and adding extra screws other than the recommended 150mm or so is not going to make it any stronger, its your call deano leave it there and skim take a chance, or take it down do it properly