Dot & Dab Tips

[Toppers]

A few questions:

 

Is there a better trowel to use for applying the dots to the wall?

 

I'm applying the plasterboards (12.5mm square edge) to new blockwork do I need to PVA the walls first before the dots?

 

Should I do the window/door reveals first before boarding across the face?

[Carrerahill]

Bucket trowel is good - also helps you scoop it out the bucket!

[nod]

No need to pva

use a bucket trowel to flick the dabs on 

Put your reveals on first with two continuous lines to stop them tipping out of square 

Allow 40 mil past the block to give you about 25 mil dab 

 

[Toppers]

6 minutes ago, nod said:

No need to pva

use a bucket trowel to flick the dabs on 

Put your reveals on first with two continuous lines to stop them tipping out of square 

Allow 40 mil past the block to give you about 25 mil dab 

 

 

Thanks, is it worth wetting the wall first at all or just stick onto the dry blockwork?

[nod]

7 minutes ago, Toppers said:

 

Thanks, is it worth wetting the wall first at all or just stick onto the dry blockwork?

No

no need 

[Moonshine]

2 minutes ago, nod said:

 

That's a cracking kids climbing wall!

[Oz07]

56 minutes ago, nod said:

No need to pva

use a bucket trowel to flick the dabs on 

Put your reveals on first with two continuous lines to stop them tipping out of square 

Allow 40 mil past the block to give you about 25 mil dab 

 

25mm dab bloody hell!

[nod]

7 hours ago, Oz07 said:

25mm dab bloody hell!

Pretty normal for window walls 

You often find the reveals run out 

You have 40 max at one point 

but only have 20 at another 

In the unlikely event your block work is plumb you could reduce this to 30 mil 

 

[Oz07]

Are you talking including the board. Sorry I thought you meant just the dab

[daiking]

It’s no wonder this wall fell down ?