Roof cleaning is not taken into consideration by many homeowners although it is an important operation in the maintenance of a roof, especially if it is made from materials prawn to allow the development of algae, mildew, moss and mold.
Cleaning the roof periodically will extend its lifespan and its ability to function and provide protection. Additionally, a clean roof will enhance the aspect of your entire property.
Like we said before, cleaning the roof is about more than removing dirt; it consists in using solutions and pressurized water to also remove vegetation growth.
Algae are responsible for those unaesthetic black stains that we often see on roofs; they feed of limestone and asphalt. Moss is a plant that needs moisture to survive, so it grows on roof areas with less sunlight and can spread easily through its spores. Lichens grow symbiotically with algae but they are actually a fungus with tentacles that penetrate into the shingles.
All this types of vegetation growing on the roof is detrimental to roof shingles and must be prevented by periodic cleaning operations.
There are certain roofing materials that require less maintenance (e.g. metal shingles), but the best thing is to schedule regular roof maintenance and allow an Aurora roof repair specialist to decide what is the best course of action to clean and protect your roof.