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Material: Brick
Condition: Soiled Biological
TPAS Code: Bio
Condition Type (AutoCAD Layer): Brick_SoilStain
Severity Units: Not Applicable
Ammount Units: Area affected in square feet
Description: Microbiological plant growth on the surface of masonry, such as algae, moss or lichen, or vascular plant growth, typically in gutters, cracks or on roofs.

Image 1
Biological growth (moss) in 19th century brick
Image 3
Biological growth (vascular plants) in 19th century brick
Image 2
Biological growth (vascular plants) in 19th century brick
Image 4
Biological soiling (algae) in modern buff brick