Yes. Cleaning your roof can save you money in more ways than one...
First, the algae and fungus that grows can cause premature roof granule loss, and shorten roof shingle life. So you save money because your roof lasts longer and you won’t need to replace it.
Second, when the algae turns your roof black, it becomes less reflective, and it retains heat; so your air conditioner works harder to overcome the increased heat load, costing more money in electric bills.
Third, the aesthetics of cleaning your roof when it comes to selling your home can not only save you money but can make you money too.