Best way to plaster over Clay Brick

D Wil

New Member
Grateful if someone can advise the best way to plaster over internal clay brick.

Thistle Bond Technical support advise that its product is suitable for use prior to plastering. Is this a good approach or is plaster bard fixed to brick preferable or is there An alternative approach.

thanks.
 

essexandy

The Lake Governor
Grateful if someone can advise the best way to plaster over internal clay brick.

Thistle Bond Technical support advise that its product is suitable for use prior to plastering. Is this a good approach or is plaster bard fixed to brick preferable or is there An alternative approach.

thanks.
What are you intending to plaster over the bricks with?
 

D Wil

New Member
Plaster is proposing thistle bond it applied to clay bricks followed by sand cement scratch coat and then skimmed finish.

I had previously been advised it would need to be boarded and then skimmed So not sure which is best.
 

essexandy

The Lake Governor
Plaster is proposing thistle bond it applied to clay bricks followed by sand cement scratch coat and then skimmed finish.

I had previously been advised it would need to be boarded and then skimmed So not sure which is best.
I can't understand why any spread wouldn't be happy to just apply sand and cement straight on to bricks?
 

Dropsalot

Private Member
You must first ascertain the beginning. Once found that will be the best place to start. ..........
Just render & set it.
 

D Wil

New Member
You must first ascertain the beginning. Once found that will be the best place to start. ..........
Just render & set it.
Not sure what you mean by ‘you must first ascertain the beginning’
I just need to know if there is an adhesion issue with plaster taking to clay bricks and what the best solution is.
 

bof

Well-Known Member
Solid wall or cavity
Not sure if it's appropriate on solid , but never used grit
If I'm doubt get the foam out

What exactly do you mean by "clay brick"? Most bricks are made from clay aren't they?
Every day is a school day , perhaps his house is made from driveway blocks lol
 

Stevieo

Royal Spin Doctor
Steve I'm honestly baffled by this. Even engineering bricks can be gone over if they've been laid correctly.
I know.

I'm just telling you that concrete bricks aren't made of clay.

They're made of concrete.

And people who ask questions like the OP should probably reconsider their DIY projects.
 

D Wil

New Member
I know.

I'm just telling you that concrete bricks aren't made of clay.

They're made of concrete.

And people who ask questions like the OP should probably reconsider their DIY projects.

Bricks seem to be soft mud clay very dusty and brittle, easily worn away and fixings work free easily. They also seem to Soak up water easily and retain heat thus causing expansion.
it may be that there is no right or wrong answer and just plasterers preference for scratch coating or fixing bias and skimming.
 

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essexandy

The Lake Governor
Bricks seem to be soft mud clay very dusty and brittle, easily worn away and fixings work free easily. They also seem to Soak up water easily and retain heat thus causing expansion.
it may be that there is no right or wrong answer and just plasterers preference for scratch coating or fixing bias and skimming.
They look like bog standard facing bricks to me. As long as they're clean just float and set as normal.
 

Dropsalot

Private Member
Wet them, slurry coat maybe, scratch coat, leave it awhile, then float it all nice in sand cement, then skim it. The beginning will be the place you start.
A journey of a million miles starts with a single step.
 

Stevieo

Royal Spin Doctor
Soaps or suds? something like that, i have used them in Ireland.

Oh. I did a job with a brickie a while back. I seem to remember him saying something like that.

Didn't know what he meant and never bothered asking

I found some extra long bricks in his work afterwards. I presumed he meant them
 

Nicm

Well-Known Member
Oh. I did a job with a brickie a while back. I seem to remember him saying something like that.

Didn't know what he meant and never bothered asking

I found some extra long bricks in his work afterwards. I presumed he meant them
Soap bars.
 

Brimstone

Well-Known Member
@D Will So is this a previously external wall now inside due to some sort of extension? And/or is it a single skin wall that is going to get weather on it the other side?
 

D Wil

New Member
@D Will So is this a previously external wall now inside due to some sort of extension? And/or is it a single skin wall that is going to get weather on it the other side?
It is internal cavity wall. Just got tired of the brick and looking to modernise by plastering over the clay brick which has become very dusty.
 
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