Archer St Physio required an air conditioner in the waiting room. The old weather board style always gets very cold in winter so they opted for the Fujitsu which covers the waiting room and office. The outdoor unit was mounted on the roof which you may notice has the black pipe insulation. I see so often where white insulation is used in this scenario only for it to leak 12 months down the track. The black insulation in UV resistant and doesn't break down over time which keeps it leak free. Do it properly the first time to save headaches later down the road.