The best way to keep a roof clean is via a regular roof treatment. A roof treatment is cheaper than a roof wash, its quicker and less labour intensive. It’s also a lot gentler on roofing materials and uses a lot less water.
A roof treatment involves spraying a product onto the roof surface which kills lichen and moss. The rain and sun gradually break down and remove the dead lichen and moss. This process can take up to 12 months for moss and lichen and around 18 months for black mould.
Every roof is different in terms of how long it takes, and this is based on the roofing materials and the environmental factors that surround the roof.
Some roofs require a booster treatment about 4 months after the initial treatment. This is generally only roofs that have been affected by quite heavy moss, mould or lichen. If your roof falls into this category then the return price would be the same minus 20%
We recommend getting a regular roof treatment to keep it free from growing lichen, mould and moss and getting a residue build-up from environmental factors such as traffic pollution and the residue from trees growing nearby (particularly macrocarpa trees).
This lengthens the life of the roof products and is cheaper than getting a roof wash which is labour intensive. Some roofs need an annual treatment and some only need to be done bi-annually it just depends on the environmental factors.
A lot of the products available for this sort of work are diluted and so do not produce the result our product does.
If you are getting your roof painted, then it will need to be washed.
If you’re wanting your roof cleaned instantly and are not wanting to wait 12 months (sometimes this can be more like 6 months) then getting a roof wash would be the better option for you
If you have quite a lot of black mould. A roof treatment is not always that effective on black mould.
A friendly reminder that if you are on tank water, please disconnect the tank prior to any roof washes or treatments. If you are unable to do this yourself please let us know as we are happy to do it for you and will just need to check a few things with you first.