"Commander Kinsey" wrote in message
newsp.0koqf4rjwdg98l@glass...
On Sat, 16 May 2020 00:54:20 +0100, dpb wrote:

On 5/15/2020 6:48 PM, Commander Kinsey wrote:
On Fri, 15 May 2020 23:54:36 +0100, dpb wrote:

On 5/15/2020 4:02 PM, Commander Kinsey wrote:
...

Why can't it still crack the flush plaster you put over the tape?

The paper if flexible enough to give.

But you have plaster over it! So what if the tape gives, the plaster
over it will still crack.

Not unless the wall moves so much anything else would as well.

100 years applications prove the principle works pretty doggone well.

I don't see how the tape helps.

Yes, you have always been that hopeless at anything mechanical.

It's not going to reduce movement at all.

It flexes when there is movement. Plaster doesn't.

Just put the plaster straight into the gap.

That cracks when there is some movement.

Surely gypsum board is in use throughout the world; can't be only US.

Yes but we call is plasterboard in the UK. Horrid stuff, try removing
it.

No problem at all--it's trivial to remove or cut into for access for
other work or repair such as electrical or plumbing and then repair
it--certainly far easier than lath and plaster.

Plasterboard is basically powder.

If it was, it would all fall down inside the plasterboard and even
someone as stupid as you should have noticed that it doesn't.

Cut it and you get a dusty mess.

Not if you cut it with the right tools.

Try removing a whole sheet of it,

Works fine.

especially when a moronic builder with no long term planning has used
nails which you can't remove without rumbling the plasterboard to pieces.

Watch what happens when a house is demo9lished with
a backhoe, no clouds of powder from the plasterboard.