Thus far have scraped off numerous layers of roofing coating materials from around the vents, skylights, etc on the roof. Removed unneeded fixtures on the roof and damaged elements, replaced with metal sheeting or rubber vent housing, put sticky aluminum flashing tape around skylights and over some poor areas, and silicones the entire roof with gaco 100% silicone elastrometric roof coating. I realize this layer may not be needed after repairing the damaged areas, but a prior owners have applied numerous layers of various substances that were water resistant and not waterproof, and that stuff is near impossible to get off, so we took off what we could, but it is impossible to say if we fixed all of the problem areas under the asphalt and other layers, so I covered the entire roof as insurance. Also the white color makes the surface so much cooler. It was so hot on that roof before that you could get burned, no joke. Now, in the heat of the full summer sun, I can put bare skin on the roof with no discomfort. This should translate to cooler temperatures in the summer. The coating will also help prevent damage from freezing moisture in the winter.
Interior
Took out the old toilet and put in a self built, fluid diverting, composting toilet. Added a third bunk in the back where the previous owner had torn one out. The previous owner had taken out the original fridge and put in a standard dormitory fridge and a microwave that both run on 120 volt, which means they are no use to me, so I took them out. I will be putting a small wood stove where the fridge was.