Terracotta Tile Cleaning
Moss and Lichen covered tiles
Terracotta roof tiles are normally cleaned to have the moss & lichen removed. Terracotta tiles are made from natural clay which is a naturally a moist material.
Moss & Lichen is attracted to the roof tiles surface & if left will grow & most likely restrict the flow of rain water over the tiles surface into the roofs gutters. An application of an environmentally friendly anti-fungal solution should be applied to all moss & lichen prior to undertaking the roof cleaning process.
Once the anti-fungal treatment is applied, the roof tile surface is high pressure cleaning using around 3000psi of straight water pressure. A turbo type nozzle should be used when using such high powered water pressure.
Removing the Moss & Lichen will bring the tiles natural colour to light & help ensure the roof performs as it was designed.
Terracotta roof tiles which have Glazing evident should not be sealed – painted or coated as an application such this would have trouble with any mechanical adhesion.