Roof Cleaning Methods: Four Options for Removing Ugly Roof Stains

If perhaps you are researching roofing cleaning methods on the internet, you have likely encountered claims, counter-claims and outright confusing and disagreeing information among the various camps. roof cleaning Geelong

This article will provide clarification about the four main methods most widely available to consumers for taking away ugly roof stains triggered by algae, lichens and moss.

Method #1 Earth-friendly, Low Pressure 

Companies that use this method use products that do not contain toxic chemicals such as chlorine-bleach, phosphates or other chemicals that can kill vegetation and dirty waterways. This approach also uses a low-pressure rinsing system that is safe for asphalt and fiberglass shingles.

Pros: Typically, the results with this method are instant and the staining are completely gone before the contractor leaves your house. Skilled technicians using eco-friendly roof cleaning products will get on your homes roof, inspect it, and do the position using high quality, eco-safe products and state-of-the-art equipment which really clean your roof top. Professionals who use this method completely clean your roof top while preserving the sincerity of your shingles and your landscaping.

Cons: This technique may cost somewhat more due to the expense of the quality eco-friendly products and equipment and the extra time the contractor uses at your house making sure no roots or spots are left behind.

Idea: When hiring a builder who uses this method, pick one who assures that the roof staining will be completely removed before they leave your house. Also, look for a company who provides an total annual roof spot prevention program.

Method #2 Chlorine-Bleach Mixtures

Contractors who use Sodium Hypochlorite (chlorine-bleach) mix it in relatively high concentrations with other chemicals such as Trisodium Phosphate, also called TSP. They will spray it on your roof and await it to dry. They re-apply the mixture several times before the stains begin to diminish. Typically there is no rinsing. The spots that don’t come off may (or may not) eventually come off with the rain.

Pros: Chlorine bleach cleaning often costs less because the chemicals are inexpensive and the roofing usually isn’t rinsed after the application.

Cons: The actual outcome typically are not instant. Additionally, a chlorine-bleach solution provides the potential to create harm to people and pets. Also, this can be a powerful oxidizing agent capable of breaking up most necessary protein structures, including the herb cuticles of the crops in the landscaping bordering most homes. The results of such a mix on your landscaping can cause everlasting damage to your plants, trees, grass, and shrubs. Bleach and phosphates can leach into rivers in watershed areas.

Idea: Contractors who use chlorine-bleach usually don’t advertise that they put it to use and often the only method to know is to ask them immediately. If you’re still unsure, ask the following question: “How will you protect my plants while cleaning my roof? ” Virtually any answer aside from “we avoid need to protect your plants because our product does not harm plants” indicates that a dangerous chemical will be used. In the event that the answer is something like “we wet down your plants before, during, and after our treatment to guard them” or “we use of a runoff recovery system” or “your plants will be protected during the cleaning process, ” these are clear indicators that a severe chemical is being used.

Method #3 ‘Splash and Dash’

Some contractors apply a chemical on your roof and let you know to wait for weeks or months to see the results. Items which do not require rinsing, but rely upon the rain to scrub away the roof staining organisms are designed so that the contractor will not have to get on a rainy roof or use special equipment to rinse the roof.

Pros: More affordable than some other methods.

Negatives: These products often take repeated applications to achieve even marginal results.

Idea: Some contractors will use a consumer grade product and charge you professional rates for it. You can buy these products yourself at the big box stores. They will not work any better for you either, but at least you won’t be paying of the middle section man.

Method #4 Underhand Power Washing

Some roofing cleaners use high pressure power washing in an attempt to remove roof structure stains.