Truma blown air ducting insulation

erbert

Hello out there. Looking underneath my Lunar Quasar 554 I see the ducting for the above has about 2 metres exposed to the elements below the floor. This seems a bit silly, I don't mind the odd squirrel having a warm but!!

Has anyone insulated these? Any good products on the market to achieve this?  

Seems a bit odd that Lunar and others don't do this during production!