Kingspan tr27 underfloor

[Oz07]

Quick question if the boffins on here wouldn't mind. 

 

Is there any reason why I can't use kingspan tr27 under a floor in a renovation? 

 

Got one room to renew slab in and want to insulate. It's for flat roofs but what's the difference once it's under concrete? Not suitable for underground?

 

https://www.kingspan.com/gb/en-gb/products/insulation/insulation-boards/therma/thermaroof-tr27-lpc-fm

 

[ADLIan]

Check with kingspan technical dept? Probably more expensive than flooring product if it’s for flat roofing.

[Oz07]

Not if it's going cheap. But has that person made the same mistake?

[scottishjohn]

nope  it will be fine

done that before when buying seconds  --works fine 

just different backing  basically ,still PIR foam 

[PeterW]

On 21/02/2019 at 20:53, Oz07 said:

Quick question if the boffins on here wouldn't mind. 

 

Is there any reason why I can't use kingspan tr27 under a floor in a renovation? 

 

Got one room to renew slab in and want to insulate. It's for flat roofs but what's the difference once it's under concrete? Not suitable for underground?

 

https://www.kingspan.com/gb/en-gb/products/insulation/insulation-boards/therma/thermaroof-tr27-lpc-fm

 

 

It has a higher compressive strength but lower uValue than Thermafloor (not by much 0.022 vs 0.024) but also has no foil so would need to be protected by a DPM both sides. 

 

If you are getting it as seconds, it will probably have damaged edges etc and the glass tissue either side can be a b!&ch to cut with a saw so slit it with a very sharp Stanley knife first. 

[Oz07]

Cheers both