Has anybody got any views on insulation. I'm driven daft trying to determine which is the best method of insulating above the average to give myself minimal heat loses. In the floor im placing a 75mm kinspan insulation under a 75mm screed. In the Roof im placing a 125mm Thermapitch board between the joist, then a 37.5mm plaster-board fixed to the internal side of the joists. Now the walls this is where im getting confused as what to do, im putting a 60mm therma board in the cavity. i am possibly going to insulate the inside of the internal leaf, firstly i was going to do this with a 37.5mm dry-lining from Kingspan, i then looked at placing some airflex insulation on some battens then placing the plasterboard. I then switched my attention to Triso Super 10 placed in the same method as the airflex. However i then heard through this website i think that the Triso Super 10 is not suitable in this situation behind dry-lining. I am now back to the dry-lining insulation backed plasterboard, yet i'm weary as if this is good enough for my requirements.
Could somebody please set me straight, it's doing my ceann in, theres a serious need for a website of some discription or an organising body to test and rate technologies, as there is alot there stating that they are somewhat better than the next product, yet is not until one year down the line you can tell if the material you used is any good.
If anybody has used different methods of insulation and what circumstances there were would help me greatly, i am using a heat-pump to heat my hot water and space heating will be done by underfloor heating.
thanks guys