Yuk. That's the first word that comes to mind when some homeowners discover that their natural slate roof tiles have algae growth, bird poop stains or even moss growing between the tiles.
Travel through Europe and you see these slimy slate roof conditions everywhere. While it may be "charming" and add "character" to the roofs overseas, none of us want the ongoing maintenance hassles or cracking problems of a natural slate shingles on our home in the United States.
Thank goodness for polymer roofing advancements. Started 15 years ago, DaVinci Roofscapes manufactures imitation slate tiles that resist algae, mold, fungus and insects. The fake slate tiles are part of a lightweight roofing solution for the home that offers the beauty of slate, but without the headaches of yearly maintenance. (See DaVinci Slate Roofing Rivals Natural Slate)
Best of all, DaVinci synthetic slate shingles resist curling, cracking and fading. They also come with a 50 year roof warranty ... and the cost of installing a DaVinci composite slate roof system can be up to 50% less than quarried slate installation!
For more information on DaVinci Single-Width and Multi-Width simulated slate roofing with a Class A Fired Rating, see Fred Flintstone's Boss Would Love DaVinci Slate Tiles.