The tools and products DEFY offers in the line of roof cleaning are excellent and very simple
to use. DEFY Roof Cleaner Concentrate is a product effective for roof shingle cleaning and is the safest way to clean and restore the appearance of your roof. One gallon of the DEFY Roof Cleaner Concentrate makes 7 gallons of cleaning solution. Be sure to keep this product away from gutters and downspouts as the cleaning agents will accelerate their corrosion. Sodium hydroxide is its active ingredient and it will cause irreversible damage to any hard surface it comes into contact with, including asphalt shingles.
This image details algae growth on roofs across the United States. If you fall into an area where algae is a serious problem or is considered a danger zone, you may want to consider checking your roof out .There’s a good chance it’s time for a cleaning!
The DEFY Stain Blocker for Roofs will help prevent stains for reoccurring. The roof must first be cleaned and rinsed and then the Stain Blocker can be applied. This is a milky white liquid that dries clear. It is recommended that the Stain Blocker be reapplied every 2-3 years as preventative maintenance. Be sure to only apply this product in temperatures 70 degrees Fahrenheit or higher.