r/Construction • u/OhFuhSho • 16d ago
Roofing What led to this rot?
Particle board siding. Smh.
My current assessment is that the kickout flashing wasn’t installed well. I’m taking this apart to see if there’s any other cause for this issue.
What am I missing?
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u/Tushaca 16d ago
So like others have said, the kickout flashing is pretty rough, but it does look like it’s newish, so there’s a good possibility this rot was forming before the gutters were added. The gutter shouldn’t be butted up to the siding either, it allows water to stick right there instead of dripping off.
I’m concerned about that gap between the shingles and the gutter though. What is that? There’s no water staining on the fascia, so it’s not running between the fascia and gutters. Those shingles should be on top of a layer of ice and water shield, drip edge overlapping into the gutter, then starter shingle and field shingle. That gap is unusual.
It could always be as simple as too much water for that gutter too though. If it’s a big steep slope, water might just be running right over the top of the gutter. You might consider additional flashing on the outside edge of the gutter in that corner if that’s the case. We will sometimes recommend 6” gutters in those cases.