At the intersection of the plywood overlays the upper sheets contain black mold spreading about 2 3 up the slope.
Mold on roof plywood.
From the outsidethere are a couple of dips in the plywood which appear as though thes areas were loaded with shingles during re roof.
It is not required to eliminate all discolorations from wood.
The item in cleansing mold from a wood surface area is to get rid of all fungus product from the surface area of the wood.
Fungus spores hyphae as well as conidiophores the spore creating frameworks of mold.
No mold on the framing that supports that plywood though.
So it looks like cold roof effect mostly affects the sheathing itself but the lumber under it is relatively safe from it.
Organic materials to feed off moisture warmth and darkness.
However the plywood roofing over the front porch area was all covered with mold.
How to remove mold from wood framing plywood sheathing tongue and groove subfloor or roof decking the object in cleaning mold from a wood surface is to remove all fungal material from the surface of the wood.
In the vast majority of cases the mold growth is caused by condensation.
It also dips along the edge where the moldy plywood exists.
Mold requires a few key elements in order to grow and thrive.
Fungal spores hyphae and conidiophores the spore producing structures of mold.
Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
When moisture is present on the plywood mold spores can begin to attach and grow.