Posted By: ShevekUsing PU foam to glue/seal EPS insulations seems to be all the rage with GBF participants.

What product(s) should we be using? Do we need a different type for floor insulation and wall insulation? Any particular brand you recommend? Any particular gun you recommend? Should I grab some remover too?

Can't recommend any particular brands, whatever the local builders merchant have that you can negotiate a decent deal on works for me..... Fischers B3 was the last stuff, gun - always go for metal one, you need to get cleaner (acetone) as well, great for cleaning the guns out. Only real difference I am aware off between the foams generally available in a builders merchants are fire rated and non fire rated (as well as gun/no gun) - fire rated stuff for sealing round pipes in masonry walls and the like.

The advise I was given when I was starting my build was not to waste money on the really expensive guns (some of them are over £50) and just get the cheap metal ones. This was from a guy who is using them day in, day out, who said the expensive ones will clog or break just as quick as the cheap ones.

But as said already you need to get a gun and interchangeable cartridges it's gives you way more control than just the normal can with plastic spout.

I got kits which had 4 large cans of foam, one can of cleaner and a metal gun for around £22 all in. Have a look around to see if you can find similar.

If fixing windows, you might want the low expansion stuff - it's stronger. Tends to be a bit more expensive, as it's a less mainstream product. I mainly used Soudatherm Roof 250 until recently - but have started rationing it now as my favourite supplier can't get hold of it anymore - since Soudal have just given nice-n-pricey SIG sole UK distribution rights on the stuff (which is a shame, because it's good, and also not too expensive).

Ilbruck PU010 is a similar product, but lower expansion still (I've only used a bit of it, so I've not a great deal of experience to compare them), and is (apparently) specially for bonding EPS EWI.

Ah I see, thanks Tim.

Do you mean these guys: http://www.siginsulation.co.uk/ ? Can't find Roof 250 on there.

good link that , £2.77 is cheap ,
see they stock illbruck also which is a good brand ( they do various air tight tapes /window foils etc.) the companies a bit more up in that area. for round widows etc
this is better stuff http://www.ukfixings.com/product/342/500/Illbruck-FM330-
tool station £23 gun is good , I rarely, if ever, use cleaner , just leave the can on and change when empty,
tape a mastic nozzle over the end , squeeze it flat with pliers, to get in tight gaps . once the foams gone off round/inside the nozzle it leaves a foam thread, so you can fit another mastic nozzle when required. Guns usually last me about a year , and gets used weekly

Posted By: fostertom

Posted By: TimSmallis (apparently) specially for bonding EPS EWI

Didn't know that anyone outside of GBF did that.

Might be rare in the UK , but those crazy cats over in main land Europe dig it !
http://www.youtube.com/watch?v=cYk10IHkbtU

Posted By: jamesingramMight be rare in the UK , but those crazy cats over in main land Europe dig it !
http://www.youtube.com/watch?v=cYk10IHkbtU

Obviously a unionised site with very strong demarcation, every lad has his only little job!

Posted By: ShevekSo any thoughts on number of canisters needed?

Buy a box of a dozen to start with and one of cleaner, nothing worse than running out and having another trip to get more - a lot depends on how big your gaps are that you are trying to fill

So if I'm using PU foam for the edges and to stick boards together should I use it to stick the walls boards to blockwork walls too, instead of using traditional adhesive?

And what about our existing brick walls where we're removing the pebbledash? Should I use it to stick the boards to that wall too without smoothing off the wall with a base coat of render like I was going to do?

Posted By: ShevekSo if I'm using PU foam for the edges and to stick boards together should I use it to stick the walls boards to blockwork walls too, instead of using traditional adhesive?

And what about our existing brick walls where we're removing the pebbledash? Should I use it to stick the boards to that wall too without smoothing off the wall with a base coat of render like I was going to do?

might be a way to go , once you've removed all the loose dash , you'd need to check how well it stuck.
It appears considerable less hassle than , level coat, cement adhesive , mech. fix etc.. I have some doubt re longevity, but that's just a hunch.

Posted By: jamesingramMight be rare in the UK , but those crazy cats over in main land Europe dig it !
http://www.youtube.com/watch?v=cYk10IHkbtU

I was interested so I asked Soudal about UK availability:

Unfortunately we do not hold stock of the components in the UK and I'm afraid that for just one house we would not be able to bring them over from Belgium.

Oh well.

Posted By: djh

Might be rare in the UK , but those crazy cats over in main land Europe dig it !
http://www.youtube.com/watch?v=cYk10IHkbtU

I was interested so I asked Soudal about UK availability

Was that the Soudal or the Illbruck? (the reason I ask is that the Video is an Illbruck one, but you said "Soudal").

I got one sample can of the Illbruck PU010 from UK Fixings (them of the above £2.77 per can link - it's not on their website, but I phoned them up) - which my carpenter accidentally used (but he then replaced it with another PU010 which was in-stock at a small local place "Brighton Tools and Fixings") - this was about 6 months ago, so at least at that time, the PU010 was available in the UK.

I ordered a box of the Soudal Roof250 a few weeks ago from UKFixings - which he supplied, but then said that Soudal have told him that they won't supply him with it from now-on, as they've signed an exclusive deal with one UK outlet. He thought that he could still get the Illbruck PU010 in the future tho'.

The reason that I was ordering the Soudal 250 instead of the Illbruck tho was purely that he has (until now) been able to get the Soudal for a chunk cheaper than the Illbruck.

As has been said above, I daresay you could order the Soudal in direct from Europe if you don't fancy dealing with SIG.

I used the following to stitch my 100mm thick sheets of EPS together, worked quite well and provides instant connection while your PU glue sets.

http://www.ebay.co.uk/itm/500-x-FIXING-PEGS-Weed-Control-Fabric-Heavy-Duty-Plastic-Geotextile-Anchor-Pins-/130700940183?pt=UK_Home_Garden_Garden_Plants_Fertiliser_CV&hash=item1e6e621397

Posted By: timberframingto stitch my 100mm thick sheets of EPS together

How would you use those to stitch sheets together - do you mean edge to edge, so sort of skew nailed?

No, The boards were fixed to the steel roof and walls by screwing through battens then insulation, also foamed to the frame as well and edge foamed. Several belts and braces!