Will Spray & Forget work on Cedar Shake roofs, tile roofs, metal roofs, painted siding, vinyl siding or wood decks/fences?

Yes! Spray & Forget will work on all of these surfaces. Spray & Forget does not contain any harmful bleaching agents like chlorine or bleach and is not caustic like Sodium Hydroxide. However, you should always test a small area first to make sure that your specific stain is not affected. We have never had any problems with these surfaces but there are many types of stains and different building materials and grades of materials on the market. Therefore, you should always test a small area just to be safe. Spray & Forget will remove any black and/or green stains caused by algae and mildew. Spray & Forget will not return grayed wood to its original condition but will remove all black and green stains.  more