I discovered mold in my 13 year old home's attic. It is confined to the trusses which is the A-frame construction that hold the roof up. I had a mold inspector come in and have another in a couple days. The inspection revealed no roof leaks and adequate ventilation. They felt that the trusses had mold on them to begin with. This might make sense since these trusses are pre-built then shipped to the construction site. All other areas like the joists, particle roof board and ceiling drywall were not affected. Who knows how long the pre-builts sat in the rain. If the 2nd inspection reveals the same root cause analysis, do I have recourse for a small claim with the builder? The structural warranty ran out at 10 years although I don't think mold was specified in that warranty. Thoughts and suggestions?