There are different kinds of roof cleaners that can be used to remove mildew, moss, and stains. They vary in price and effectiveness, but the best type is determined by the severity of your problem and the material used in your roof. Get to know more about which one you should use at home by reading these tips:
Chlorine Bleach
Chlorine bleach will kill roof moss, but when you rinse if off the roof, it may kill the plants growing alongside your house, too. If your moss problem is extensive and you plan to use a large quantity of chlorine bleach, bear in mind that it will accelerate the corrosion of your metal gutters and downspouts. If you must use chlorine bleach, prepare a mixture of half bleach and half plain tap water. It will kill the moss while reducing the potential damage to your roof, plants, and gutters.
Oxygen Bleach
Oxygen bleach will not damage your roofing, garden plants, or gutter system, but it requires more effort than chlorine bleach. It must be applied when the roof surface is cool, such as a cloudy day in autumn. You must keep the moss damp with the solution for at least 20 minutes. Using a scrub brush mounted on a pole, gently brush off the moss using a downward stroke. It may require more than one application of oxygen bleach to remove all the roof moss. Source: EHow
Emulsifiers
These are designed for metal roofs. They are ideal for galvanized roofing. Emulsifiers dissolve the dirt, grime, and grease. This allows for more effective cleaning of the roof surface. Ammonia is a fundamental ingredient in emulsifiers that enables grease removal on metal roofs. Source: DoItYourself
Eco-friendly Cleaners
Roof cleaning companies that use this method use high-grade eco-friendly products that do not contain toxic chemicals such as chlorine-bleach, phosphates or other chemicals that can kill vegetation and pollute waterways. This method also uses a low-pressure rinsing system, avoiding the use of damaging high pressure scrubbing or brushing.
Pros: Typically, the results with this method are instant and complete. Algae, lichens, and moss are completely gone before the contractor leaves the property. Technicians use eco-friendly roof cleaning products such as roof shampoo and equipment designed precisely for safe, gentle roof cleaning. Contractors who use this method clean the roof while preserving the integrity of the shingles and without damaging the landscaping.
Cons: This method may cost a bit more due to the cost of high quality eco-friendly products vs. inexpensive chlorine bleach mixtures. Source: Angi
If you’re looking for a more in-depth discussion on how to clean your roof with these products, contact us today! We offer free consultations to help you decide the best course of action for your roofing needs.
Contact:
Kerrisdale Roofing & Drains Ltd.
168 W 71st Ave, Vancouver, BC V5X 4S7
(604) 360-2114
