Flue against roof sheathing

[Ken Milton]

I inspected a house today and this flue from the water heater was against the roof sheathing. I believe it needs a 1" clearance. Any help would be appreciated.

[John Arnold]

I inspected a house today and this flue from the water heater was against the roof sheathing. I believe it needs a 1" clearance. Any help would be appreciated.
If that's single-wall pipe, which it looks like, it needs six inch clearance.

[Ken Milton]

Thank you. It is single wall.

[Michael Thomas]

Assuming that's an attic, can't be single wall in any case.

[Dom D'Agostino]

I see dryer lint there, are you sure it's the water heater flue?

[Jack Feldmann]

Good point Dom! I have also seen bathroom and kitchen vents exhaust like that.
Michael,
How about in a house that was built before double wall vents were made?

JF

[Ken Milton]

Thank you guys for all your advice. It is not dryer lint, it is blown insulation. Yes it is the water heater vent. I put in the report that it might be a single wall and that the clearance were not correct.