Gap between sheets (boardmate)

fixit · Dec 17, 2017

Does anyone here think there should be a 1-2 mm gap between the 8x4 sheets we use.
The square ended sheets that go tight can move. I reckon there should be a gap.

TonyM · Dec 17, 2017

Historically we would leave a clout nails thickness between sheets, for the skin to seep in to. Not anymore though.
One builder I do work for, on multi million pound homes, insists on a 3mm gap still.

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zombie · Dec 17, 2017

I'm convinced more likely to get a crack the bigger the gap.

But the above advice is correct.

Personally I aim for tight a fit as possible

fixit · Dec 17, 2017

Yes I think using the board mate will give the correct gap I need.

algeeman · Dec 17, 2017

zombie said:
I'm convinced more likely to get a crack the bigger the gap.

But the above advice is correct.

Personally I aim for tight a fit as possible

all properties move crack with heat and cold.....any spec is a load of old shite

irish_spread · Dec 17, 2017

When I was a kid in Ireland helping my dad I'm sure they left a gap between boards. They used a scrim similar to today's but it was green and not sticky.
I'm sure on 4'x2' slabs you didn't need to scrim either , just leave a gap for key.

Nicm · Dec 17, 2017

irish_spread said:
When I was a kid in Ireland helping my dad I'm sure they left a gap between boards. They used a scrim similar to today's but it was green and not sticky.
I'm sure on 4'x2' slabs you didn't need to scrim either , just leave a gap for key.

I remember that green stuff and the brown hessian around the edges.It would take ages to get a couple of ceilings ready.

puddove · Dec 17, 2017

zombie said:
I'm convinced more likely to get a crack the bigger the gap.

But the above advice is correct.

Personally I aim for tight a fit as possible

sounds naughty ------------------------ :reloco:

malc · Dec 17, 2017

irish_spread said:
When I was a kid in Ireland helping my dad I'm sure they left a gap between boards. They used a scrim similar to today's but it was green and not sticky.
I'm sure on 4'x2' slabs you didn't need to scrim either , just leave a gap for key.

we did use to leave a 2mm gap between the boards if it was in the spec.

the 4' x 1.5' lathe sheets had a rounded edge, did not scrim the joints but filled the gaps then skimmed the ceilings.
lathe boards on ceilings, 8' x 4' where called wall boards.

Arti · Dec 17, 2017

An old artexer I know used to kick off if the boarders didn't leave a gap before he artexed?......... Is artexed even a word :wtf:

superspread · Dec 17, 2017

I ALWAYS leave 3/5 Mm gap, I’m convinced it helps it not to crack, I also do something else but not giving my secret away to you load of bodgers

irish_spread · Dec 17, 2017

malc said:
we did use to leave a 2mm gap between the boards if it was in the spec.

the 4' x 1.5' lathe sheets had a rounded edge, did not scrim the joints but filled the gaps then skimmed the ceilings.
lathe boards on ceilings, 8' x 4' where called wall boards.

My memory isn't that bad after all. I knew the beer wasn't giving me dementia :bananahappy:

irish_spread · Dec 17, 2017

Nicm said:
I remember that green stuff and the brown hessian around the edges.It would take ages to get a couple of ceilings ready.

The green stuff was much quicker than the hessian we had to use when I came to the uk. It was revolutionary at the time, brings a tear to my eye

Danny · Dec 18, 2017

I always left a clout nail thickness gap

essexandy · Dec 18, 2017

malc said:
we did use to leave a 2mm gap between the boards if it was in the spec.

the 4' x 1.5' lathe sheets had a rounded edge, did not scrim the joints but filled the gaps then skimmed the ceilings.
lathe boards on ceilings, 8' x 4' where called wall boards.

The last house I can remember doing with lathe boards was back in the late eighties.
Sooo many cracks.

johniosaif · Dec 18, 2017

essexandy said:
The last house I can remember doing with lathe boards was back in the late eighties.
Sooo many cracks.

My father a farmer thought it was madness putting 8x4 on a ceiling

TonyM · Dec 18, 2017

johniosaif said:
My father a farmer thought it was madness putting 8x4 on a ceiling

Don’t think Suggs ever did boarding!

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zolco · Dec 18, 2017

As far as I know bs is 3 mm, but I sometimes change that to 10-20 mm gap

BobbyJack · Dec 18, 2017

superspread said:
I ALWAYS leave 3/5 Mm gap, I’m convinced it helps it not to crack, I also do something else but not giving my secret away to you load of bodgers

Put your cock in the gap :risas:

fixit · Dec 18, 2017

johniosaif said:
My father a farmer thought it was madness putting 8x4 on a ceiling

Where did he put them

johniosaif · Dec 18, 2017

fixit said:
Where did he put them

No where ,he was a farmer ,

Cornelius · Dec 18, 2017

So how are you meant to keep an even 2-3mm gap when boarding ceilings? Fix some sort of Packer to space the boards apart? Never going to happen for me, I just butt them up tight .

essexandy · Dec 18, 2017

Cornelius said:
So how are you meant to keep an even 2-3mm gap when boarding ceilings? Fix some sort of Packer to space the boards apart? Never going to happen for me, I just butt them up tight .

A lot of tackers used to use a nail as spacers. And it really did happen.

johniosaif · Dec 18, 2017

essexandy said:
A lot of tackers used to use a nail as spacers. And it really did happen.

I trained that way in 85

zolco · Dec 18, 2017

johniosaif said:
I trained that way in 85

I was kicking my spotty ball about in 85 lol

Pagey · Dec 18, 2017

superspread said:
I ALWAYS leave 3/5 Mm gap, I’m convinced it helps it not to crack, I also do something else but not giving my secret away to you load of bodgers

I know it

johniosaif · Dec 18, 2017

Pagey said:
I know it

Two hr break ?

Pagey · Dec 18, 2017

johniosaif said:
Two hr break ?

That ain’t even a secret it’s a must

Cornelius · Dec 18, 2017

essexandy said:
A lot of tackers used to use a nail as spacers. And it really did happen.

Tack a nail in, simple and quick I guess

Pagey · Dec 18, 2017

Cornelius said:
Tack a nail in, simple and quick I guess

Maybe on domestic but can’t see that happening on big sites

essexandy · Dec 18, 2017

Pagey said:
Maybe on domestic but can’t see that happening on big sites

Even on site work a gap was insisted on.

Dropsalot · Dec 18, 2017

RobJack said:
Put your cock in the gap

Still be 3mm..........

malc · Dec 18, 2017

Pagey said:
Maybe on domestic but can’t see that happening on big sites

site work can go to extremes. housing being the lowest standard. with ministry of defence work they bust umpteen sub contractors.

essexandy · Dec 18, 2017

zolco said:
I was kicking my spotty ball about in 85 lol

I'd already bought my first house by then, God I feel old. Thanks.

Pagey · Dec 18, 2017

essexandy said:
Even on site work a gap was insisted on.

Old school blokes I know will insist on it but on site it’s a case of throw them up I was under the impression that the gap was needed for when you old boys had to go round and hessian the joints, plus if bg spec paper tape would the gap be needed,me personally can see both arguments for it

Gap between sheets (boardmate)

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