The Commdeck or Retrodeck will allow the installer to swap out or take out the dish simply with no potential destruction. If you are going to install a pvc pipe with flashing you still have to lag bolt through your buyers shingles. The pvc pipe will also develop condensation and https://docs.google.com/spreadsheets/d/1ob0dJEGF99z3qEFgx4NgE8G5OsXOxoJg98eF010UfgA/edit?usp=sharing