Guide to taking Out Moss and Algae Even on Roofing in SA (South Australia)
Even in South Australia, millions of roofs are infested with moss and algae. Thankfully, these organisms are not causing any damage to the roofing materials. Instead, they trap water that wears out the materials and makes the material susceptible to rust. As a solution, it is better to clean and take them out rather than let it prolong its stay and run its course since moss and algae are easy to clean.
No matter what material your roof is made of, whether it may be wood, metal, clay, asphalt or concrete, it is still possible for moss and algae to grow on it. Since rainfall is common, moss and algae growth will be faster since this is the only provision they need to survive.
Often times, the moss on your roof can be found in areas where trees give shade to your roofing. The shade helps the growth of moss and algae since these areas of the roof remain damp. Morning dew and rainfall also contributes to the growth of moss and algae. By evaporating slower in this part of the roof, the organisms feed on this water and rely on it.
Moss and algae growth calls for any home owner’s attention because this can shorten the life span of roofing; especially if the material used is untreated wood or asphalt. Luckily a brush can easily take out moss formations. By attaching a standard bristle scrub brush to a pole end, it will be able to reach that area of roofing where the organisms are growing. Steadily pushing the brush against the roof will uproot the moss formation from the asphalt. As soon as this is done, it would be best to check the spaces in between the asphalt since this area is a good location for them to grow on. Make sure that there aren’t any left-over roots. This will slow down their growth and will keep the roof protected for a good period. Although after cleaning and you see that the granules are gone, this means that the roof should be considered for replacement.
Sometimes, black algae may be found. Even if they may seem nastier than the green algae, it does not cause any damage to the roof. This is more of a visual problem over anything else. Notably, this should be taken out too, but it appears that black algae are harder to take out than regular green algae.
Attempting to clean the black algae out does not require any use of chlorine bleaches. Using chlorine bleach may take out the natural color from the roofing material and fade it faster. And when the liquid drips, it may take out any vegetation that is growing from the yard. A better component to use will be oxygen bleach. Not only does it take out green algae, it even works well against black algae. Oxygen bleach is only required to be mixed with water and wiped down to roof. Let it stay for 20 minutes and scrub it down after. The algae will come right off.
By remembering to do this regularly, it will keep the roof clean and algae free and it will also keep the roof safe from caving in.

