Can you dab them foil faced kingspans?

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nelly

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Ive no idea what the spec on fitting them is.

I'm considering insulating my house, and rather than cavity wall injection I'd rather stick insulated boards up.

In fact rather than buy the backed plasterboard its a lot cheaper to buy kingspans and then stick plasterboard on top of them myself.

I know you can dab the normal insulated boards but whats the score with foiled ones?

Anyone tried it?
 
Sounds a bit risky as you're sticking to the foil rather than the board but I've not done it before.
aren't they usually fixed with those umbrella clips?
contact Kingspan tech department they'll tell you what's best.
 
Sounds a bit risky as you're sticking to the foil rather than the board but I've not done it before.
aren't they usually fixed with those umbrella clips?
contact Kingspan tech department they'll tell you what's bet.

Thats ,I dont want any risk, they stick boards to the insulation though at the factory so there must be something out there that they use.
 
Why run the risk and why bother , just use the thermaly bonded boards they are about 22 quid for a gyproc thermaline plus (these are top spec boards) you can get cheaper ones, but if your intent on going down the phenolic board and dotting route then you need to be using the ones that are used to bond onto the exterior of a structure as these are designed for an adhesive fix backed up with a mechanical fix, the boards that you are talking about are sandwiched between a vapour barrier and would be no good for dabbing , other option is mf or stud/laths and then ins between and fix boards,
Imho you would be better off buying the boards designed for the job
 
You definitely cant dab foil back it just wont adhere. Warriour i just assumed that the boards with the vapour barrier sandwiched inside were designed to be stuck but never had to use them.
 
when I did my office I used king span insulation, I used a few dabs of silicone just to hold the boards in place then used 2 x 1 battens drilled and fixed ready to receive the boards.

worked well and am sat here now in the warm :)
 
Have you considered using pva or unibond ?

lol, oh my god... essexboy i do love to read your comments, i get excited when i see your name as i know
im going to get a good ol laugh.....

pva foil boards to a wall .... again listen to yourself lol
and your calling yourself a plasterer...

I think you should be cleaning up some rubbish or bagging up lath and plaster ceilings or whatever type of labouring you do

your so funny man
 
warriorupnorth is telling you what should be done. if a jobs worth doing and all that. dabbing foil back boards is risky (over time) and onto kingspan sheets?? they recomend secondary fixing thermal boards dabbed onto brick/blockwork.

you only need to really thermal board the external walls if your trying to keep the costs down. if your not bothered about saving money but want maximum insulation then go for some ewi (external wall insualtion), decorative render finish and have a proper job done.
 
Why run the risk and why bother , just use the thermaly bonded boards they are about 22 quid for a gyproc thermaline plus (these are top spec boards) you can get cheaper ones, but if your intent on going down the phenolic board and dotting route then you need to be using the ones that are used to bond onto the exterior of a structure as these are designed for an adhesive fix backed up with a mechanical fix, the boards that you are talking about are sandwiched between a vapour barrier and would be no good for dabbing , other option is mf or stud/laths and then ins between and fix boards,
Imho you would be better off buying the boards designed for the job

I can get 80mm kingspan for £15 a sheet, which is miles thicker than the thermaline ones
 
I can get 80mm kingspan for £15 a sheet, which is miles thicker than the thermaline ones
In that case mate your not too worried about saving space , so do what rich suggested and pin the kinspan to the wall then fix laths over the top and through into the substrate , then fix your board to the lath
 
warriorupnorth is telling you what should be done. if a jobs worth doing and all that. dabbing foil back boards is risky (over time) and onto kingspan sheets?? they recomend secondary fixing thermal boards dabbed onto brick/blockwork.

you only need to really thermal board the external walls if your trying to keep the costs down. if your not bothered about saving money but want maximum insulation then go for some ewi (external wall insualtion), decorative render finish and have a proper job done.

I hate render I hate looking at it and I hate doing it :)

Also I think its a bad way to insulate a house, in order for it to work you have to herat both layers of brick before it comes into effect, thats why I dont want cavity wall insulation for nearly the same reason.
 
I hate render I hate looking at it and I hate doing it :)

Also I think its a bad way to insulate a house, in order for it to work you have to herat both layers of brick before it comes into effect, thats why I dont want cavity wall insulation for nearly the same reason.

The insulated render stops the cold from coming in more then stopping the heat escaping
 
The insulated render stops the cold from coming in more then stopping the heat escaping

Yeah they got to say that because the system is flawed.

I had my hand in my cavity wall last year when doing an rsj and it was blowing a gale, thats something else exterior insulation wont help deal with.
 
Sounds a bit risky as you're sticking to the foil rather than the board but I've not done it before.
aren't they usually fixed with those umbrella clips?
contact Kingspan tech department they'll tell you what's best.

yes called retaining clips
 
actually ewi is the most affective but prob not the cheapest way to insulate a house. and yes cavity wall insulation is a load of crap too really as in years to come it will just cause problems with the bridge between the cavity and no airflow. and on single skin houses all thermal boarding does is move the cold point into your property where the warm from inside meets the cold air from the external wall which will cause condensation. Do you actually know what insualted render is?
 
actually ewi is the most affective but prob not the cheapest way to insulate a house. and yes cavity wall insulation is a load of crap too really as in years to come it will just cause problems with the bridge between the cavity and no airflow. and on single skin houses all thermal boarding does is move the cold point into your property where the warm from inside meets the cold air from the external wall which will cause condensation. Do you actually know what insualted render is?

think you're right. Did a bit of research recently on green building forums, and they reckon external insulated render is better than insulating inside. Something to do with cold bridging and external render not changing the dew point of the room. Anyway sometimes external render isn't a viable option.

But you definitely need a cavity between the wall and your insulation. Best thing to do is ring up the manufacturer and get it from the horses mouth. They know their products better than anyone else innit?
 
oh ye your right mate, some time external insulation is not a option. i went with thermal boards in my own house beacuse of the trouble moving services, guttering etc in order to externally board it. The manufacturer will tel you what they want to sell there products but there are obviously plus's and minuses to everything. Ive been doing alot of the external wall insualtion and the rendering and think its a good system with alot of benefits and with the info for u values and comparing it to alternative options its a good system.
 
think you're right. Did a bit of research recently on green building forums, and they reckon external insulated render is better than insulating inside. Something to do with cold bridging and external render not changing the dew point of the room. Anyway sometimes external render isn't a viable option.

But you definitely need a cavity between the wall and your insulation. Best thing to do is ring up the manufacturer and get it from the horses mouth. They know their products better than anyone else innit?

External render ISNT an option cos I f*ckin hate rendering :)

Dabbing boards does creat a cavity of sorts, I remember reading its taken into acount when doing a thermal check or what ever they call it.
 
oh ye your right mate, some time external insulation is not a option. i went with thermal boards in my own house beacuse of the trouble moving services, guttering etc in order to externally board it. The manufacturer will tel you what they want to sell there products but there are obviously plus's and minuses to everything. Ive been doing alot of the external wall insualtion and the rendering and think its a good system with alot of benefits and with the info for u values and comparing it to alternative options its a good system.

In my circumstanc,e as I said earlier there is a right draght blowing around the cavity, which means if I do do external insulation all the heat will be getting lost through this before the insulation comes into effect.

Ive been wandering round my house and feeling the walls the externals are miles colder than internals, try it your selves its weird a s f*ck.
 
lol, oh my god... essexboy i do love to read your comments, i get excited when i see your name as i know
im going to get a good ol laugh.....

pva foil boards to a wall .... again listen to yourself lol
and your calling yourself a plasterer...

I think you should be cleaning up some rubbish or bagging up lath and plaster ceilings or whatever type of labouring you do

your so funny man

I think essexboy is laughing at you mate.
 
Steve's right nelly they are not the foiled backed boards and also you cant dab the foilbacked boards i guarantee it,if your goona do it fix battens and insulate inbetween.
 
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