Today, I was driving in an area of my town and saw the second roof that I ever did in my life 13 years ago. So, the roof looked okay, but… I thought something looked funny about it, there was a ridge vent on the ridge of the hipped roof, and two feet under it there was a power vent… admittedly, I did not know at the time this roof was installed that this was wrong, but I didn’t remember seeing this detail being done when I was a kid.
It stuck in my head, and I couldnt get rid of it, and the homeowners kid is an acquainance of mine, so out of curiosity I called the homeowner and he confirmed that he’d had the power vent installed later. I told him that this was wrong and that I’d remembered we didnt do it this way and thats why I called.
Is this strange when the homeowner doesn’t know me from a hole in the wall? It was like research in my mind. I wanted to ask him a question that got awkward in my mind so I never asked, so I’m going to ask it here;
around the power vent that has been installed there is a black ring below the venting section of it, so what do you suppose causes that black “soot”. I’ve seen that on the louver vents also. My guesses were, first, a long time ago, that it was possibly just the venting of some dirty air in the house possibly caused by oil heat or something venting in the attic. Now, in this circumstance, I’m thinking its algae from the moisture getting in through the ridge vent. What do you guys think or know?