OK, Colonial two story, clabboards, leaks on first floor only, good clues. step by step I`ll eliminate possibilities. Clabboards lap 1" 3/4 minus exposier. If you have additions with roof lines diagonnally down the plane, the first piece of stepflashing MUST drain on to the face of the last cut siding that starts up the run. A good way to tell is that you should be able to see the bottom of the first stepflashing. If you see the stepflashing drain behind the siding, the paint under the butts will keep it from draining out and still, if the lap is below the first stepflashing all the water will drain behind all the siding and the Tyvex paper or underlayment will keep it from showing up inside for years,but it will travel and show up on joints and weaknesses in the paint as drips that appear as bleeding. Also check the foundation to see green growth indicating draining from behind siding. If the siding is cut too close to the roofline you will get the same results as above.
If you have no lower rooflines, disreguard this reply and I`ll move on to another possibility. A photo of the entire side of the house would help alot. |
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