Algae On Roofs Prevention

Extended dwell times may be necessary however avoid letting the solution dry completely as this may prevent complete rinsing.

Algae on roofs prevention. Algae spores are quickly spread across rooftops by either animals or the wind. It s actually tiny bacteria that produces a dark material to protect itself from the sun. The most effective method of cleaning algae and moss from a roof is with a 50 50 mix of laundry strength liquid chlorine bleach and water. Apply with a sprayer and allow the solution to dwell on the roof surface for 15 to 20 minutes and then rinse thoroughly with low pressure water.

Tips for algae moss prevention and cleaning on roofsyour roof is an important part of the home which is why you need to do all you can to ensure that it does not have algae and moss which can be a problem. As we talked about in the last blog algae usually do not harm a roof but the black streaks and discoloration they produce can look very unappealing. Installing multiple strips can thus be a more effective solution. Blue green algae are the most common type to grow on roofs.

What makes algae hard to stop is that the bacteria travels on the wind. The primary way for bacteria to get on the roof is transferred from trees so getting rid of the trees or trimming the trees that are closest to the house will cut down on the bacteria that end up getting on the roof. Take proper precautions to protect landscaping and surrounding areas from the. A good way to eliminate the algae growth on your roof is to limit the number of trees around your roof or trim back the trees that are closest to the house.

Kirby also noted that metal fixtures galvanized steel or copper and in our experience even aluminum retard algae growth on roofs and he too recommends installing zinc or copper strips at the ridge to control algae growth but warns they may not be effective over the entire roof slope because concentrations of zinc copper or other metal salts are more diluted further away from the strips. The more humid the area the more you can have algae growing on your roof.