Here are some common causes of roof leaks related to plumbing:
 
Clogged vents: Your roof's vents, which allow air to circulate through your attic, can become clogged with debris, preventing proper ventilation. This can cause moisture to build up, leading to leaks.

Damaged pipes: Pipes can become damaged over time due to corrosion, freezing and thawing, or physical damage. A leaky pipe can lead to water seeping through your roof.

Loose pipe fittings: Pipe fittings, such as elbows and tees, can become loose over time, leading to leaks.

If you suspect that your roof leak is caused by a plumbing issue, it's important to call in a professional roofing contractor to assess the situation and make the necessary repairs. The contractor will be able to identify the specific cause of the leak and make the repairs needed to prevent further damage.

It's important to keep in mind that any repairs made to your roof should be done by a professional with experience in roofing. Attempting to make repairs yourself can lead to further damage and even void any warranties on your roof. In addition, always make sure to hire a licensed and insured contractor to avoid any potential liability issues. It is also important to note that regular roof maintenance is crucial to prevent leaks and other issues related to plumbing and roofing. This can include cleaning your gutters and downspouts, inspecting your roof for damage, and having a professional inspect your roof at least once a year. By addressing any issues related to your roof and plumbing quickly, you can prevent further damage and keep your home safe and dry.