Best way to plaster over Clay Brick

[D Wil]

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]

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]

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]

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]

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

 

[D Wil]

I can't understand why any spread wouldn't be happy to just apply sand and cement straight on to bricks?

I was told it was to do with the adhesion to the clay brick.

 

[D Wil]

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.

 

[essexandy]

I was told it was to do with the adhesion to the clay brick.

What exactly do you mean by "clay brick"? Most bricks are made from clay aren't they?

 

[Deleted member 32554]

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]

What exactly do you mean by "clay brick"? Most bricks are made from clay aren't they?

Not concrete ones.

They're like little blocks

 

[essexandy]

Not concrete ones.

They're like little blocks

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

 

[Stevieo]

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]

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.

 

[essexandy]

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]

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.

 

[tapit]

Not concrete ones.

They're like little blocks

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

 

[Stevieo]

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

 

[Stevieo]

It was just the sort of job you'd want weird bricks for.

 

[zombie]

It was just the sort of job you'd want weird bricks for.View attachment 55059

Ffs not that photo agaim caretaker!

 

[Stevieo]

Ffs not that photo agaim caretaker!

Gimme a break. It's the only proper job I've done this year.

Knob head

 

[Nicm]

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.

 

[Stevieo]

Soap bars.

That'd be it. Dunno if that's an Irish thing or if I'm just displaying my ignorance of bricklaying.

 

[Brimstone]

@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]

@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.

 

[Dropsalot]

Quicker and maybe easier to dry line it