Hey Charles,

Excellent point. I use to see alot of that on homes back when I was in Kentucky.

Sean Allen

How hard is that to install as an after product on a home built without it?  Looks pretty costly to do, though when it's rotted like that, there's plenty of work to do anyway. 

Sean & Pilar, I see this WAY too often.

Ardell,  after the fact is always problematic and often involves residing.  Sometimes the plywood is the house sheathing as well and it is more efficient to remove the decay and side over the plywood siding.

Charles, Good post! I see that quite often on textured plywood siding. Lack of maintenance also contributes greatly to this condition.

Charlie,

You hit the nail on the head there. Years back, when I was an electronic engineer in broadcasting, I cannot tell you how often I had to repair some cold solder joint or another issue because some engineer, a decade before, figured that as long as it outlasted him, who cares. Problem was, I was there for 27 years, so I got the breakdowns from all of them and tried to never adapt that attitude. Somebody always ends up getting stuck with the lousy work.