My house construction was undertaken between April 2014 and January 2015.
The site was notified to NHBC in November 2013 and the foundation excavations were in April 2014. The hot water pipes run through the ceiling void in the kitchen and part of the lounge before going up into the airing cupboard.
The pipes are lagged in the cupboard but not the ceiling void. The builders say there is no requirement to lag the pipes in the ceiling void as this was simply "best practice" at the time, the 2014 NHBC regulations apply and the NHBC technical note, issued in March 2014, which states the pipes should be lagged does not apply.
As these are hot water pipes we are losing heat from these year round and a thermal imaging camera clearly shows them as "red hot". Are the builders correct on this? Are they not bound to follow "best practice"?
All input on this gratefully received!