Insulated Plasterboard

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i've just looked on both BG and knauf and they say you should secondary mechanical fix them but not why, i tell you what i worrying. knauf say when subject to fire, the product will release carbon monoxide.
 
skimmin2day said:
We dont need flynny to tell us the diffeerence between damp we need him to tell us why to secure the inso board to the wall with a fixing,becuse if a fire did start by the time there was enough heat to burn the back of the foam on the board youd be dead of smoke inhaltion or just a pile of black ash on the floor.
Im sure the fixing is incase the board comes away from the insulation without fire.
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Its so they dont fall off, if youve ever fixed them with dabbing they are shite and are usually bent and by the time you have straightened them they ping off. A tip for fixing them is give the back of the board a very tight coat of drywall and then dab this stops them coming off.
 
a lad i know runs his stanely over the back of the boards in a grid formation and it straightens the boards up a bit, but i dont know how it would be if they came off for any reason, would BG/knauf take responsibility?
 
No they wouldnt mate.thats why they say to fix them.So you might aswell use wood,insulation and plasterboard like i said before.
 
apparently you shouldnt use celotex and foil backl boards together as foil on celotex to foil on plasterboard is not a good thing......celotex to normal board.foil to foil not good..just what i was told
 
You hear so many different things its often hard to know the truth.
I just been reading up on my books for this electrical training course i just enrolled in to get my full scoope domestic insatler qualification and it says you cant put cables near polystyrene as a chemical raction nukes the cable sleaving.
Im just thinking back of all the stud walls ive filled with jableite and other polystyrene products over the years and praying not !!!!
 
Couldnt be @rsed reading all the answers but what I want to know is where is this fire going from and too?

You cant have a fire behind a plasterboard thats stuck to a brick wall, it'd run out of oxygen in half a second and it makes no difference if fire is going the other way.
 
nelly said:
Couldnt be @rsed reading all the answers but what I want to know is where is this fire going from and too?

You cant have a fire behind a plasterboard thats stuck to a brick wall, it'd run out of oxygen in half a second and it makes no difference if fire is going the other way.
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Its probably the heat of the fire.
 
skimmin2day said:
You hear so many different things its often hard to know the truth.
I just been reading up on my books for this electrical training course i just enrolled in to get my full scoope domestic insatler qualification and it says you cant put cables near polystyrene as a chemical raction nukes the cable sleaving.
Im just thinking back of all the stud walls ive filled with jableite and other polystyrene products over the years and praying not !!!!
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Yes this is true, in France you have to run your cables through flexible plastic pipe conduit so that the cables don't come into contact with any polystyrene insulation.
Apparently if they are touching each other it just corrodes the cable & becomes a fire hazard. :o
Same as when you buy any electrical goods the cable is always wrapped in a plastic bag so it's not touching the polystyrene in the box.

Are you sweating now skimmin ? :o
 
Just read all the way through this link on a train to london to distract my attention away from the bint sat across from me banging on about fook.ing handbags. Grrr... anyway... these thermal boards... I have a potential kitchen job where the walls are prone to a lot of condensation. Was going to advise the customer to install a cross ventillation system to get rid of moisture, but would these thermal boards work if I latted existing walls and screwed them on? Surely the moisture has to go somewhere?
 
Why bother mate? to get the best results you need to afix them to a frame work which i think everyone is on agrrement with.So you might aswell just use boards wood and insulation as its cheaper.
 
It was the vapour barrier comment in the thermal boards from earlier that got me thinking. No worries. Why? How much do these bent, flamable, s**t boards cost (8x4)
 
£42 down my way. plus adhesive and fixing bolts ur talking £50 a board.
For that ud be lucky to get it into the room you want to fix in without getting it dameged or that badly twisted its unusuable.
There a fad gimmick useless waste of money in my opinion anyway.
 
Building inspectors dont like timber frames or battening against the wall and infilled in between as the timber does not have the same U value as the insulation so causes a cold spot that why they always ask for insulation board.
The fixings are incase of fire but are essential to hold the board against the wall especialy if sticking with foam untill it cures. I will find out Monday how good this foam is as i have to take a bit of board down as i drilled straight through a cable last thing Friday.
Mo
 
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