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Algae

Algae on a fabric convertible roof.
Convertible roofs are prone to going green when coated with a dusty form of algae, which can grow and spread very rapidly.

Algae can grow where dirt collects on your roof, especially when weatherproofing has worn off and the roof is allowed to remain damp.

On some cars, the tape around the seams and edges may contain natural fibres and is particularly prone to algae (as shown in the photo), from there, algae can grow very rapidly causing much of the car's roof to turn green in a short space of time.

Technically, this powdery greening is made up of cyanobacteria and fungus, making it a lichen. However, it is generally referred to by people as 'algae' or 'roof green'.

Written by . Last updated 30/07/2022 14:01