what are type of insulation material meet the current standard

Hi basically most if not all insulation meets current standards, not going into to much detail but it depends on where your fitting it walls, roof,floor ? they all require different levels and there you products designed for different locations, if you go to a web site such as kingspan or one of the other main insulation companies they will have this info you need to know or go to the local builder merchants they have booklet of the manufactures requirements to reach current u valves that are required T.

To decide on the appropriate isulation for a particular purpose i.e roof, flooring, cieling, cavity wall, fire stop/resistant against chimney breast etc.., If you were to go to Kingspan Insulation web site this should answer any queries you have. Regards, James Anthony