Discuss Corrugated cardboard wall panels in the DIY Bathroom Remodelling Advice area at PlumbersForums.net

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mutley racers

Plumber
Gas Engineer
Hi all. I am renovating a bathroom at mo and today while removing the tiles and boarding I have discovered what looks like corrugated wall sheets from cardboard. Anyone ever come across these before?

Cheers
 

ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer
Yep timbers 4 foot on centres ish
 

Millsy 82

Plumber
Gas Engineer
Yep I live in a house with them walls. They are rubbish and not looking forward to doing my bathroom as they are just the same size as plasterboard but thinner
 

ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer

townfanjon

Esteemed
Plumber
Gas Engineer
Over the years as walls have moved I have changed it to studding and plasterboard.

Kitchen rad is 600 x 1800 double , its bolted through the straw with 4 x 75 mm x 8 mm bolts with 40mm washers . Its a good job it wasnt a customers when I found the straw . Its called stamic , or something like that , strangely it didnt take off lol
 

scott_d

Plumber
Gas Engineer
Over the years as walls have moved I have changed it to studding and plasterboard.

Kitchen rad is 600 x 1800 double , its bolted through the straw with 4 x 75 mm x 8 mm bolts with 40mm washers . Its a good job it wasnt a customers when I found the straw . Its called stamic , or something like that , strangely it didnt take off lol
How old is your house?
 
OP
M

mutley racers

Plumber
Gas Engineer
Never seen it before and couldn't believe it when found. This stuff is about 2 inches thick with dot and dab on either side. I need to move a doors location and put shower valve in this stuff but not deep enough for valve.

Can you run a vertical waste in it from a wall hung basin or is it best to knock down and stud the walls out.

Cheers all.

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Millsy 82

Plumber
Gas Engineer
Personally I would take it out and rebuild it or at least cut the one side down and rebuild. It is fairly strong stuff though but so thin you will struggle to get a 22mm through it let alone a waste pipe.
 

Last Plumber

Esteemed
Plumber
Gas Engineer
Stramit board, the straw stuff, I am sure is made same as an Archery Target Boss.
The egg board stuff, I don't know what they were thinking. What's all this perform like in a fire?
 

Mastermixlee

Gas Engineer
Paramount partition board most likely.

"studs" are tiny and spaced massively apart.
The eggshell structure actually makes one side of the plasterboard support the other (hence the lack of traditional studs) .

So if you cut too large a hole in one side it affect the strength of the opposing side.

Crap stuff and alot thinner than normal walls.

It's alot of work but I personally remove and replace with traditional stud wall as has more strength for mounting, and space for sound insulation.
 

EvilDrPorkChop

Gas Engineer
Yes it's Paramount walls. We come across it quite a bit round here. Horrible stuff for getting shower valves/pipes in.

As said above, if possible remove and replace with a proper stud.
 
I have seen them in Dunstable. They can turn a simple job into a nightmare if dropping cables or pipes down the stud wall cavity is your plan.
 
I had Paramount walls in my last place, the only advantage to them was getting cables down the wall got easier as I used drain rods, pushing them through the corigations down from above.
 
OP
M

mutley racers

Plumber
Gas Engineer
Thanks all. Replaced wall where door and shower valve is going.

How is this for underfloor heating...

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ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer
:D

The mind of a person it will work now where did I put the mastic
 

ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer
I do but depends on size 1/4 of depth of joists

Normally fill / sister if it’s had old chases in them with 18mm ply
 

EvilDrPorkChop

Gas Engineer
You have to weirdly admire the ingenuity but I can’t believe it ever worked
I have a customer who has underfloor heating fitted in his ground floor bathroom from 1980's. I've been told it's just copper pipes wrapped in tape buried in the floor. It was OV and we made the system sealed, was s****** it when we did for leaks etc. it but it's fine. Works a treat, his tiles are lovey and warm when the water is flowing round them at 75oc!

Surprisingly he's had no issues with the tiles. Yet. But after 30 odd years or so it must be fine.
 
OP
M

mutley racers

Plumber
Gas Engineer
Anyone know what adhesive to use to stick some moisture board to this paramount board to be able to tile onto. The previous just used multi finish and it was a bugger to get off.
 

ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer
You mean the plaster board skin ?

If so some bonding / plasterboard bonding etc
 
OP
M

mutley racers

Plumber
Gas Engineer
Thanks. According to the Manufacturer of the bonding agent it isn't a recognized method as meant to be for masonry and block

Other people say like you.

You used layflat? Any easier than standard speed fit.
 

ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer
If it’s going tight and the walls are good and plumb I’ve seen some expanding foam stuff never used anything so can’t comment
 

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