Bathroom and dryer vents running into attic

[Tim Mensch]

I'm currently in the process of buying a rental in Philadelphia.  The seller will not vent the dryer and fan vents through the roof. They currently vent a few inches from the ridge vent.   I know the reasons they should vent through the roof but was wondering if they HAD to be vented outside. I can't find the code anywhere.  Listing agent says there is no use and occupancy requirement to make the change. 

[Scott Hollister]

Hello @Tim Mensch,

I think the issue here is quality of your rental and not what code says. 

• I would think having a bathroom vent going into the roof would cause moisture, which could result in even more problems. 
• Also, the dryer vent could create lint build up and cause a fire. Your insurance would not cover this most likely, especially now that you know about it. 

My advice would be to adjust your offer accordingly to have this remediated the correct way. Get a quote and have someone else pay for it. (Example: Lower offer)

Good luck Tim!