Perimeter floor insulation

manufan16

Hi all,

My floor build up is 2 x 100mm PIR insulation and 50mm screeded with UFH. And first floor 50mm insulation/ 50mm screed.

My query is regarding the perimeter insulation, my understanding is the the perimeter insulation should be the full depth of insulation and screed meaning I require perimeter insulation at least 250mm deep and maybe another 10mm/20mm to keep screed contained.

I am finding it difficult to source PI this deep and it was suggested that I could cut up some 25mm PIR boards and use these as the PI.

What are the thoughts on this practise?

Thanks

BryanF

manufan16 wrote: »

Hi all,

My floor build up is 2 x 100mm PIR insulation and 50mm screeded with UFH. And first floor 50mm insulation/ 50mm screed.

My query is regarding the perimeter insulation, my understanding is the the perimeter insulation should be the full depth of insulation and screed meaning I require perimeter insulation at least 250mm deep and maybe another 10mm/20mm to keep screed contained.

I am finding it difficult to source PI this deep and it was suggested that I could cut up some 25mm PIR boards and use these as the PI.

What are the thoughts on this practise?

Thanks

That should be fine (as you have the icf rising walls anyway)
Hows the rest of it going?

manufan16

All good Bryan, electric first fix starting on Wednesday, I have the power and knx for heating and lighting finalised but I'm still working on the audio video side of things.

Once thats done Ill be starting on the floors and this was one of the details I wasn't sure about so thanks again :-)