Best way to fix a flat leaky garage roof?
Just bought a new house. The detached large 2 car garage has a very very leaky flat roof that is dripping inside of it (walls will be ripped out and wood treated once roof is fixed). One quote is $2500 to tear off and replace the flat roof (could go up depending on what they find underneath). Another is $4600 to tear off, build a 6 inch pitch and re-roof. We don't want to spend a ton, it's a garage. But also don't want to deal with it over and over. The flat roof co. does offer a 10 yr warranty. But can a flat roof ever stay waterproof? Any advice is MUCH appreciated. We're in Portland OR so it rains quite a bit. :) Thank you!