What do people do with siding where there’s a roof intersecting a wall? Let’s say (to keep things easy) it’s only the top of the roof intersecting the wall.
Looking at houses in this area, it looks like people just bury this intersection in roofing cement. With wood shingle siding. That strikes me as a recipe for disaster, trapping any water that gets behind the siding at the intersection. I can’t tell if there’s flashing there. As near as I can tell, flashing is a dying art in the roofing industry around here. Replaced by the art of smearing roofing cement.
When I tried talking to a local ex-roofer (who was giving me some advice after a roofer screwed up), he claimed that the siding kept the water away from the house. I don’t believe it.
Reading the Taunton book, it seems like the siding should come down over the roofer flashing, or the roofer should slide his flashing under the siding or counter-flashing. What can you do if there’s no roofer flashing, just roofer cement? Rip out the roofing cement, and install one’s own flashing at the bottom of the wall, overlaying the tops of the roofing shingles, and side over it? I see one Taunton article (reproduced in the books for pros on exterior trim) that suggests the siding should be several inches above the roof in case of snow etc.
This is a situation where I had to remove siding to remove a window, and wonder if this is another case of workmanship that needs to be repaired before I replace the shingles. The last course of shingles are pretty rotted, presumably from capillary action. There’s a beam behind the sheathing at this intersection, and I was able to scrape away a sliver of this beam about 1/4″x8″ with my bare hands the other day…..
Replies
Are you saying your siding is wooden shingles?
Sounds like a reflashing job is in order in conjunction with residing.How old are the roof shingles?Maybe you could justify a new roof on that section in addition to new underlayment up the wall for 12",then new step flashings at least 3" longer than your shingles exposure-laid so that each step is covered by shingle.
Roofing cement looks ugly,works poorly and generally shows poor workmanship.
Yes siding should be at least an inch above the finished roof.
Thanks, I do plan to talk to another roofer about this, but need a "reality check" here first. Roof is 18 months old. I've talked about it in other threads. Repair job currently looking to be 1/3 cost of original roof. Now this. Basically imagine a roof with no flashing. Oh and no building wrap on the walls.Not sure I can afford complete residing with all the other repairs that are needed, but considering it for this wall or at least the part above the roof intersection.Just to be clear: the roof is over an addition, the intersection is at the ridge of the roof. I am getting worried about the beam behind that intersection.
This is according to the manufacturer.Troy Sprout
Square, Level & Plumb Renovations
Thanks, I also found this, though it's not quite my situation.
It's called "headwall flashing" tried googlehttp://westile.com/autocad.asp?id=7
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