James13

And where did you chaps get it from?

Did you put the 100mm stuff between in a 89mm timber stud wall (as in does it compact/squash) to go between the studs and plaster board or am I to get a smaller thickness?

Thanks @RandAbuild - I am leaning towards this due to cost. Jet floor recommend this so I hope it will not affect the thermal qualities of then build to much.

Thanks Guys. @RandAbuild what did you put under your frame? - I am looking at the foam glas as per @NSS

@nss did you require anchor straps with this?

Hi NSS - Who specified the 'structual concrete pour' as opposed to a sand and cement screed?

I am having this problem now as screeders dont seem to want to screed without the roof on, and the UFH will have to be laid and manifold in position without the roof/walls.

Thanks @NSS - really helps chatting to people who have been through it. The self builders assume much more knowledge of different products than house builders who do it then same way time after time!

This is what I was planning on doing, and this does not matter about filling that cavity do you not think?

@nss you have the same detail I am looking for - the insulation in your cavity is this 50mm? and did you just go around any air ventilation blocks?

@nss - are you putting a timber frame on this? - I assume its ok with the strength of 2.3KN? - I am a few weeks behind you!

With a compression strength of 2.9 compared to that of 7.3KN of the aircrete block - will this cause a problem - Also as that block will need to be 150mm (140 Foamglas +10mm bed) Foamdglas is pretty expensive (extra 2400 pounds than I budgeted for this part of the build). Is this the way forward you believe?

Hello All I know this topic comes up a fair bit. Could someone tell me what the best material would be to use on the circled area? I am using the Jetfloor system - Foamglas is coming in really expensive & Fonterra (jet floor) are telling me to use an Aircrete block. The timber frame will sit on this. Cheers James