We have a flat rubber roof on a 100+ year old house, with estimates that the roof is probably 10 years old (but it could be older - we’ve only owned the house for 4 years). We’ve had leaks since we bought the house, first related to skylights which we had replaced. Over the past two years, we’ve had cement patches done each winter to fix leaks into the bedroom at the back of the house. We got some estimates for more extensive repairs, but the companies we talked to said that they don’t repair rubber roofs and would only replace them. So we did the patching and hoped for the best.
During a recent rain storm, we had new leaking (near the skylights), so we’ve gotten a few new estimates. All three companies we’ve talked to this time say that we don’t need a whole new roof. But each has suggested a different way of repairing the roof. One said that we need to re-do the flashing around the skylights and vents in the roof by reapplying bitumen rubber to those areas. Another has said that they can use cement to repair the flashing, and then they will coat the roof with aluminum paint. The third said that they would use bitumen rubber and cement to repair the flashing (they said that the bitumen won’t fit in some areas because of how the skylights were installed) and then would paint the whole roof with aluminum paint.
If anyone can help us figure out which of these suggestions makes the most sense, we would appreciate it! Alternatively, does it make sense to repair a flat rubber roof, or should it really just be replaced?
Thank you in advance for your help!