A small spot that was not a small problem
From the ground this looked like nothing: a shingle area near the roof-to-wall transition that had been smeared with sealant at some point and left alone. The homeowner called because the patch looked wrong, not because anything was leaking inside yet.
That is the ideal time to call. Once a ceiling stain appears, the water has already been moving through the assembly for a while.
What we found once the shingles came up
Pulling the shingles back showed why the patch never held. The plywood decking underneath was completely rotted — soft, delaminated, and in places crumbling apart by hand. Water had been getting in along the transition where the roof meets the wall, soaking into the deck and spreading sideways under sound-looking shingles.
Two things had gone wrong originally:
- 1.The transition detail was never flashed properly, so the sealant was the only thing keeping water out — and sealant is a maintenance item, not a waterproofing system.
- 2.Because the failure was hidden, the earlier "repair" just covered it. Nobody opened the roof to look.
What we did
- Cut out the failed section. We removed the rotted decking back to solid framing rather than trimming to the visible damage. Rot spreads further than it looks.
- New plywood sheathing. Fresh decking was cut in and fastened to the rafters, flush with the surrounding deck so the finished plane stays flat with no dip.
- Underlayment and flashing. New underlayment went down and the roof-to-wall detail was flashed correctly, lapped so water is directed out onto the shingles instead of relying on a bead of caulk.
- Reshingled to blend. The area was reshingled with a matching profile and color, woven into the surrounding courses so the repair does not read as a patch from the yard.
The result
The finished area sits flat, sheds water on its own, and matches the existing roof closely enough that you have to be told where the repair is. More importantly, the wet path is gone — the homeowner is not waiting for a ceiling stain to show up next spring.
When a repair is the right call instead of a replacement
We do full roof replacements, but we do not sell one when a repair solves the problem. On a roof with plenty of shingle life left and a single localized failure, cutting out the bad decking and reflashing the detail is the correct spend. The honest test is how much of the roof plane is affected: isolated damage gets repaired, widespread granule loss and bruising across every slope gets replaced. We show you photos of what we find either way.
Signs you may have rotted decking
- A soft or spongy feel when someone walks that area of the roof
- A visible dip or wave in the roof plane
- Shingles that lift easily or will not stay sealed in one spot
- Sealant smears from a previous "repair"
- Staining on sheathing visible from the attic side
Any of these is worth an inspection before it becomes an interior repair too.
Need a roof looked at?
Inspections are free and we will tell you plainly whether you are looking at a repair, a section, or a replacement. Contact EZY Exteriors or see more project write-ups.
Project photos
