Hey folks, looking for some advice because I don’t know how to proceed.
This house came with vinyl siding and I noticed rot under it. The rot terminates up high behind where this soffit meets with the exterior wall. I need to get in here to figure out how water is getting in and then make necessary repairs, but the soffit is really in the way.
I’ve already removed the rot lower down - I had to remove vinyl siding, a layer of foam board, a layer of rotten OSB, the original rotten siding, and the original rotten sheathing. All of those layers are still present behind this soffit.
When I take the soffit vent off, there’s a layer of OSB directly above it. Really don’t know how to gain access here.
Any ideas?
Ah. The joys of homeownership: One person’s never ending battle against water.
I always say that owning a house is mostly water management - making sure water goes where it’s supposed to go, and doesn’t go where it’s not supposed to go.
Water and mice if you’re unlucky.
I’m almost positive it’s a flashing/counter flashing failure on the roof above the soffit. It almost always is. One bad piece of flashing halfway up that roof could be it. Check that the gutters aren’t holding water though. If the siding detail behind the gutter endcap is bad, and the gutters endcap is leaking, that could do it. And remember water doesn’t always run downhill. That shit can and will go straight up a wall if the circumstances are right.
You were correct. It was indeed an improperly done piece of kick flashing at the very bottom near the gutter
Yoooo! Blind squirrel and nuts and all that. Now the fun part, gotta go check the rest.
Man complex roof locations and joins are a bitch.
I refuse to ever live in anything than a rectangular, featureless box.
Step flashing and diverter at the end isn’t working right. The last piece of step flashing above the gutter should have a bent out piece to get water running down the wall above to go into the gutter and not just run down the wall. I’d also be very suspicious the siding isn’t installed correctly there as well as it shouldn’t let water behind it.
I’d get an exteriors contractor to come and look at it, and see if they can bring the two problems together to be fixed.
No diverter is present there at all. There’s a bunch of things going on here that could be causing this problem and I think it would be best to address all of them at once:
- No diverter
- No drip edge present along gutter, and I’ve seen water drip from soffit vents. It’s possible water is coming into the damaged area from where the soffit meets the wall
- Vinyl siding was installed over original wood composite. It’s questionable whether the step flashing is effective given the setup
- Gutter potentially too small - I have to clean it out like 6 times a year even with gutter guards over most of it
So the roof line meets the wall above this? My first suspect would be the step flashings along that wall (assuming a shingled roof). Often what seems like a small or minor detail in the way these flashings are done can mean they work great, or water gets in over time.
I think people have given the requested advice, so I’m just going to say unless you know the age of the soffits, be a little bit wary as there may be asbestos fibre board behind the PVC outer, shouldn’t matter unless disturbed, but just be aware
