Browse Forums Building A New House 1 Aug 30, 2010 3:33 pm Just been advised by builder that the insulation for walls rockwool 3.0 is too thick for the cavity and we will be changed to 2.5 - my question is does this still comply with 5 star engery rating, does it have to be a certaint thickness? Any help appreciated. Site Start: 10th September, 2010 PCI : Friday 27th January, 2011. Handover: 3rd February, 2011 Build Thread: viewtopic.php?f=31&t=37677 0 4687 I am saying that double brick has similar thermal performance due to thermal mass effect. It will be still very interesting to see the state of your framing after 10-15… 10 23166 |