The existing loft insulation irritated the .... out of me. Mainly because I needed to change a lot of pipes in the loft and the roof is only 22.5 degrees and the fluffy was very thick.  What with the 150mm insulated MVHR pipes (190mm thick) 2 high and a roof at 1300 ish it was too cramped. Anyone looking at the ducting photos will see the loft was bare.

Before insulating, the bungalow was loosing 87% of the heat through the roof because the rest is so well insulated. Gonna have to turn the ASHP down a bit .. 

Now started replacing with this stuff.