There are many ways to clean a roof and it depends on the level of dirt that has accrued. Algae and organic matter can oftentimes feed on your roof and multiply over time, which is why it is incredibly important to get rid of it as soon as possible. Here are 3 of the most common ways to clean a roof:
#1 Chlorine-Bleach Method
Many roof cleaning contractors will use harsh, toxic chemicals such as sodium hypochlorite and trisodium phosphate. They will use these chemicals in high concentrations in order to dissolve away organic matter over time.
Roof cleaning contractors who use this method will spray the harsh chemical solution on the affected areas of the roof several times, which they will then leave to be washed away by rainfall.
This method can be fairly cost effective, but it causes a strong chemical odour and the results may not be instant.
Pressure-washing relies on the high-powered nature of the water jets to blast any dirt or organic matter away. Instead of using chemicals to dissolve the dirt, pressure-washing is a high-powered solution to getting rid of dirt producing an immediate cleaning effect.
This method of cleaning a roof can be extremely effective when the roof materials are durable and if the dirt that has accrued is particularly tenacious.
However, pressure-washing is not always the best way to clean a roof and will often cause damage or abrasions to the roof’s structure.
Softwashing is possibly one of the best, most cost-effective ways of cleaning a roof. The chemicals used are environmentally friendly and administered through a low-pressure jet.
Instead of wasting money on unnecessary roof cleaning products, softwashing can be the best way to dissolve away the dirt gently whilst producing an immediate cleaning effect.
Relying on a combination of eco-friendly chemicals, softwashing is completely safe to use around people and animals. Trained specialists will work to administer the cleaning solutions across the affected areas, which will dissolve the dirt away without causing any damage to the underlying structure.