In this photo, you can see old architectural shingles and a non-functional guttering system. The vent stack flashing is not installed correctly and is recommended to be repaired or replaced. 

Unfortunately, this back-covered deck does not appear ready to install roofing material. The structure seems to need attention. Repair or replacement

Here, you can see that several repairs have been made to this roof. You can also see another area where the gutter and facia are failing.