Stains at vents/roof

[Kenton H. Shepard, CMI]

"The home appeared to be haunted. The Inspector recommends that you go see Paranormal activity".

[David C. Macy]

Originally Posted by kshepard

"The home appeared to be haunted. The Inspector recommends that you go see Paranormal activity".

It seems that way. Maybe it should be on Ghost Stories.

The owner/seller of that home has been haunting me lately.

[Joseph Tribuzio]

I FOUND SAME THING TODAY

COULD THIS BE A SORT OF PLATE OUT. PRESSURE THING?

ALSO note the box out they installed UNDER the vents?? i think to catch drips from wind driven rain? Could this be a contributor? more heat?

Inside my house, there were dust/ shadow stains around where paintings used to be for so long.

the home had the OHARE new windows installed and the doors weather sealed etc..

i'm considering it's something having to do with pressure inside the home? old attic dust plating out, same as like a shadow around wall hangings???

[Joseph Tribuzio]

same ROOF,, AS I MENTIONED ABOVE there are box outs installed underneath vents..

btw- No signs of a fire inside attic of home..

[KEVIN WOOD]

Fireplace in the basement back-drafted and sent all the smoke up through the attic. Since it was cold the particulate settle out around the vents. Owner probably opened the basement windows to get the smoke out and up the smoke goes finding any exits into the attic. The reason may be that they did not get a hot enough fire to start heating up the chimney.
JMEG

[Joseph Tribuzio]

My inspection home had no fireplace. hmmm???

BUT IT DID HAVE A NEW FURNACE.....

[Kenton H. Shepard, CMI]

Moisture typically turns the shingles white or brown from rust. That has to be soot or dirt. I think the roof is cold and dust/dirt/soot from the living space or attic is plating out on the roof.

[Joseph Tribuzio]

YES, that is the feeling i have too... it smacks of a soot halo or shadow, seems like dust plate out - Im still going to refer to a roofing contractor.

[Kenton H. Shepard, CMI]

More of a building science problem. Still... some roofer have been around for a long time... you never know what one of them might know.

[Joseph Hagarty, CMI]

I would say moisture.
Bathroom vents, Dryer Vent or some other source of excess moisture.

[bdoles2]

Originally Posted by jtribuzio

same ROOF,, AS I MENTIONED ABOVE there are box outs installed underneath vents..

btw- No signs of a fire inside attic of home..

I see the neighbors house has the same "ghosting" on the upper most vent. No stains on the other vents though. Lower vents could possibly be a direct vent from a bathroom or kitchen exhaust = no staining...??