Had a past client ( 2 years ago ) call in regard to something showing up on his soffit. Went over to investigate, reached out an open window and touched substance. Slightly like creosote, dark, sticky. Since I was in charge of the construction, I know there is no ventilation since we used spray foam insulation against the bottom of roof sheathing. We did use 2 rows of ice and water sheild from eve up. Then, a heavy duty building paper ( not felt ) up to the ridge. There is no attic access ( vaulted ceilings )
I’m thinking I may have to remove some of the soffit in order to view. There is a stone fireplace chimney directly above this area that doesn’t show on the pics ( providing I’m able to download them )
Any thoughts/ideas will be appreciated!