We have just finished the roof on a 1950's barn conversion using Kingspan ks1000 sheeting with 150mm quad-core insulation. This has given a u value of 0.12 which we needed for our passive house. Our sheets were 5.5m long and weighed about 90kg each so were awkward to lift. We have fixed directly onto either metal z purlins or timber and both were ok to do. Generally we are very pleased and would recommend but we wanted an 'industrial' finish.