The suspended floor is now constructed and ready to be insulated. I have a query on the thickness of insulation that i need to install.
If my research is correct a minimum U Value of 0.25 is required but i have also seen 0.22 mentioned.
The Kingspan U Value calculator says 90mm PIR is required for 0.25 and 110mm for 0.22.
100mm PIR seems to be cheaper than 90mm so that would be my choice. Do i need to go any deeper?
If my research is correct a minimum U Value of 0.25 is required but i have also seen 0.22 mentioned.
The Kingspan U Value calculator says 90mm PIR is required for 0.25 and 110mm for 0.22.
100mm PIR seems to be cheaper than 90mm so that would be my choice. Do i need to go any deeper?