I am a CA homeowner who has (had) a great western view from my living room and balcony. The neighbors immediately to the west and downslope from me have just installed an HVAC system on their roof. The home was designed with radiant heat and they had no existing ductwork in the home. Putting it on the roof was their best financial solution. What could be done to screen this mess from our view. We are above and looking down on this octopus from about a 20 degree angle. Thanks for your suggestions!