Moss and Lichen

Moss and lichen are micro-organisms which adhere to a solid surface. Both require moisture to grow and reproduce, so thrive in damp, sheltered or shaded areas. Poor drainage conditions contribute to growth on paths and hard surfaces, moss particularly likes a pitted surface that allows it to set down roots. Growth tends to be more significant in autumn and winter, but can happen at any time if the surface is persistently damp and shady.

In the built environment moss and lichen can grow on many hard exterior surfaces such as tiles of roofs, stone or brick façades, block paving, flag stones and wooden cladding, decking and furniture. They can make exterior terraces, pathways and steps extremely slippery and potentially hazardous.

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Cleaning

To remove moss and lichen we use a combination of steam cleaning and a biocide (DC64). The combination of the heat and the biocide chemical ensures that they are thoroughly eradicated and helps inhibit re-growth. The results can be transformational.

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Prevention

Where possible, cut back foliage to improve air flow and allow the sun and wind to dry the site. Ensure surfaces slope slightly to prevent standing water and improve drainage. Opt for permeable paving when constructing new hard surfaces and surface finishes that give grip in wet weather – especially in shady spots. Apply a biocide growth inhibitor.

Recent Moss and Lichen CLEANING case studies

Exterior cleaning for large residential development

Doudney Court and Squires Court together form a sizeable residential development the edge of Bedminster, close to Bristol’s city centre.  

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Cleaning a heritage building

OneFifty is experienced in cleaning historic buildings and recently carried out exterior cleaning of a Grade II listed building in Birmingham.

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Cleaning a landmark industrial plant

OneFifty recently cleaned the exterior clad facades of a landmark industrial plant near Gloucester.

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For a FREE site survey and quote please complete the form below or contact us on 0333 234 1445

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Some of our clients

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Client testimonials

“Looks really good, we are very impressed with your state of the art cleaning equipment. Please pass on our thanks to Andy.”

Adam Reynolds – Cheltenham Borough Council

“I was very impressed with the finish your company produced and how quickly you managed to do it.”

Tom Brady – MD Building Services

“They were brilliant, every team member was helpful, polite and very knowledgeable. ”

Neil Tarling – Berkshire Labels

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