We purchased an older home last fall. The roof is 2 year old shingles and the siding is white vinyl, in pretty good shape.
This winter, we got what looks like dark yellow water stains running down the siding, on the back of the house, only. Blaming it on leaves, we checked the gutters, but they are not clogged and appear to be in good shape.
Roof does not appear to be leaking, but is "wavy" on the back of the house.
We cleaned the siding, but within a week the stains are comping back, even though we've had no rain.
Any idea of where to start looking?
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