Biological fouling
Biological fouling (or biofouling) refers to the collection of impure or unwanted organisms (including bacteria, plants, small animals and so on) that may colonise, resulting in biofilms in marine and industrial settings.
Biofouling can sometimes interfere with the operation of equipment (including marine vehicles) or the purity of water collection and delivery systems (including inlets, pipes and so on). If biofouling occurs in certain types of mechanical systems (including heating and cooling systems), it can cause clogging that may lead to poor performance, system failures and costly remedial works.
Steps to address biofouling (sometimes referred to as anti-fouling measures) will depend on the type of mechanical systems and the cause of the biofouling condition.
NB Water safety in buildings, published by the World Health Organization in 2011, defines biofilms as: ‘A slimy matrix produced and inhabited by bacteria, which enables the bacteria to adhere to a surface and carry out certain essential biochemical processes.’
[edit] Related articles on Designing Buildings
- Biofilm.
- BSRIA Water Treatment for Closed Heating and Cooling Systems BG 50/2021.
- Copper in construction.
- Foul water.
- Groundwater control in urban areas.
- Heating ventilation and air conditioning.
- Pipework.
- Training for pre-commissioning cleaning of pipework systems.
- Water purification.
- Water treatment.
Featured articles and news
Buildings that changed the future of architecture. Book review.
The Sustainability Pathfinder© Handbook
Built environment agency launches free Pathfinder© tool to help businesses progress sustainability strategies.
Government outcome to the late payment consultation, ECA reacts.
IHBC 2025 Gus Astley Student Award winners
Work on the role of hewing in UK historic conservation a win for Jack Parker of Oxford Brookes University.
Future Homes Building Standards and plug-in solar
Parts F and L amendments, the availability of solar panels and industry responses.
How later living housing can help solve the housing crisis
Unlocking homes, unlocking lives.
Preparing safety case reports for HRBs under the BSA
A new practical guide to preparing structural inputs for safety cases and safety case reports published by IStructE.
Male construction workers and prostate cancer
CIOB and Prostate Cancer UK encourage awareness of prostate cancer risks, and what to do about it.
The changed R&D tax landscape for Architects
Specialist gives a recap on tax changes for Research and Development, via the ACA newsletter.
Structured product data as a competitive advantage
NBS explain why accessible product data that works across digital systems is key.
Welsh retrofit workforce assessment
Welsh Government report confirms Wales faces major electrical skills shortage, warns ECA.
A now architectural practice looks back at its concept project for a sustainable oceanic settlement 25 years on.
Copyright and Artificial Intelligence
Government report and back track on copyright opt out for AI training but no clear preferred alternative as yet.
Embedding AI tools into architectural education
Beyond the render: LMU share how student led research is shaping the future of visualisation workflows.
Why document control still fails UK construction projects
A Chartered Quantity Surveyor explains what needs to change and how.
Inspiration for a new 2026 wave of Irish construction professionals.
New planning reforms and Warm Homes Bill
Take centre stage at UK Construction Week London.






















