Algae, lichens on hard surfaces

External Mould Growth: Key Causes

It is common to find growths such as algae, lichens and moss growing on hard surfaces brick walls, Paths, patios, drives, paving, stone features, garden furniture and fencing. When you talk about algae, lichens and mould on surfaces such brick houses in London, damp is normally brought up as well, and that’s because for mould to grow, you need a damp area. The growth of algae, lichens and mould depends on a number of conditions: moisture, food, oxygen, and warmth – all conditions that are met by the nooks in your external walls. 

As water seeps into your brickwork, and settles in the little cracks around your bricks, mould is given the perfect environment to start growing and spreading. The dampness can be caused by a wide range of reasons, including:

•    Problems with guttering
•    Damaged damp proof courses
•    Poorly maintained or broken drains
•    Penetrating rain

Once the water gets into your walls, if it can’t dry, then the problem is just going to keep resurfacing – this normally happens when ventilation is poor, or when the weather is too cold for the water to evaporate. 

Tips for Keeping Mould off Your External Walls

Coating your wall with a Home Logic wall coating will provide you with a strong first line of defence agaisnt mould, moisture, and other contaminants, but there are additional things that you can do to prevent mould growth and wall damage.

With the above in mind, here are a few of our top tips to keep mould off your external walls:

  • Fix any leaks in guttering and drainpipes quickly

  • Keep your drains clean and free from obstruction

  • Make sure water drains away from your home

  • Repair cracks and blemishes

  • Make sure your home has suitable ventilation

In many cases you will be able to do it yourself, but if you really want to SAVE TIME & MONEY, call a Professional EXTERIOR CLEANING COMPANY in LONDON.

They will definitely provide the best recommendations followed by the best cleaning and protection services.

  • Brick Cleaning

  • Stone Cleaning

  • Patio Cleaning

  • Gutter Cleaning

  • Roof Cleaning

Cosmin Capatina