Solarium (a.k.a. sunroom) is leaking
So I am trying to help a friend of mine who has a solarium aka sunroom which is leaking in a variety of places. The company who made it has gone out of business and the contractor who installed it won’t return his calls. It’s leaking in areas but not horrendously and it’s not readily apparent where the water is entering exactly. My buddy does not have the money to tear it down and have it redone and can’t find a contractor willing to try and repair it properly. I suggested he start with flashing where the solarium meets the house (there is none now) and either try applying some type of rubberized asphalt tape similar to what I used where the storm collar on my chimney meets the metal roof or else some type of caulk between the glass and the metal frame (like a urethane that’s used to install the back windows in vehicles or the metal roofing caulk I used around my plumbing boots). I know this isn’t and ideal solution but it is the only feasible one. Does the peel and stick roofing membrane sound better than the caulk option? and what specific type(s) of membrane or caulk would you all recommend in this situation.
Thanks in advance,