Fungicide and Lichens – why have your roof cleaned and what damage can these organisms inflict?

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Fungicide and Lichens – why have your roof cleaned and what damage can these organisms inflict?

As anyone will understand reading this blog about keeping roofs clean, the UK is a location that experiences practically all forms of weather, some of it is quite extreme. Climate change is spoken about as the major cause of some of the very real extreme weather we are experiencing throughout the seasons, but of course, the UK has always been a location for changing weather conditions. This climate and specifically the change in climate is a perfect environment for Fungicidal growth, and much of that growth appears on the exterior areas of our homes, especially roofs.

What is less commonly known is the damage this can inflict on roof lines over if left for periods of time, and why it is something we all need to monitor and clean from our buildings and hard surfaces regularly. The average UK home has a huge surface which provides a perfect habitat for Fungicide to grow.

Lichens and other algae are two of the hardiest organisms in nature, and they can grow in the harshest conditions. So, although our weather is diverse, the UK does provide the perfect environment for these organisms to flourish. As mentioned, the most prolific location for this growth is our roofs.

As professional roof cleaners based in Bedfordshire, we see the damage these organisms can create firsthand, and this is why we continually speak with customers about the regular cleaning of their roofs. Some roofs that are shaded by other buildings or surrounding trees are a prime spot for extreme growth. Those shaded areas create a perfect damp environment for growth. Especially, the small dark and continually wet gaps between our roof tiles.

Apart from the unsightly look of a roof that experiencing extreme growth, Fungicide, Lichens and other rather nasty things are all contributing to a potentially damaged roof if they aren’t removed on a regular basis. Typical damage includes:

  • They leach the nutrients out of the binding cement and other minerals in the concrete, potentially creating roof leaks that can be expensive to repair
  • As Lichens get bigger, roof paint or surfaces can start to lift, crack and peel which exposes the construct of the roof to further damaging elements
  • Moss and lichens are like sponges. They retain water and their added weight can over a period of time affect the structure or timber frame of a roof, adding further weight and gathering unwanted moisture. This is where you can often see warping in roofs, and commonly this is down to the impact of these organisms living on your roof for long periods of time.

To replace a roof, and indeed, some of the simplest repairs can be quite costly. To maximise the life span of a roof, regular cleaning is a must, and if your budget allows, a roof coating can protect your roof for longer periods. Regular roof cleaning will potentially save many £thousands for a homeowner who appreciates their roofs need regular surveys and monitoring for the build-up of these damaging organisms.