Your roof will be cleaned in three main stages, the first of which involves treatment using a special, sterilising solution.
Mosses, lichens and algae are most commonly spread when their spores are transferred to the roof by the wind or by birds and other animal life landing on them. Simply scraping or washing the growth off with water would fail to remove these tiny spores, which become thoroughly embedded in roof materials such as terracotta tiles made from natural clay and, therefore, more porous than most other types of roof construction. The Moss Xpressroof cleaning solution effectively kills these spores and retards any future growth; its environmentally friendly, and won’t harm pets or damage the exterior of your house.
The second stage involves pressure-washing, which is carried out with extreme care using specialised equipment. There is a fine line between clearing the moss and lichen and causing secondary damage through over-saturation, or damaging tiles by allowing powerful jets of water to force their way beneath them. Our well-trained and experienced Technicians know precisely how much pressure a roof can withstand, and know how to work on a roof without damaging it during the cleaning process.
The third and final stage consists of rinsing down the roof and surrounding areas to remove excess products, sweeping up any debris, and clearing disturbed moss and lichen any gutters and downpipes impacted by the cleaning process.
