“Serpent tears” are a visual indicator of the active stage of dry rot.
When dry rot is in its active and highly developed stage, it starts to self-generate moisture and creates its own ecosystem to survive.
First, the dry rot draws moisture from surrounding timber, breaking down its structure as it feeds.
Then, it begins to project tiny droplets of moisture (serpent tears) on the surface, allowing it to continue spreading, even into dry areas that were once considered safe.
This ability to self-propagate makes dry rot one of the most destructive timber decay issues in buildings as its capable of travelling through masonry and causing costly damage if left untreated.
If you suspect dry rot in your property, book a dry rot survey below.