I just moved into a new house. Ther is an addition off the back, with a flat roof, and believe it or not it leaked the other day when we got about two inches of rain. I had concerns before the leak because of how flat the roof was, but didn't give it much thought because the rolled roofing material appears to be new. I called the company that the previous owners had to do the work. They are a very reputable (but extremely overpriced) company that has been in business in this area for a long time. The roofer told me that the roof is in good shape, and should last another ten years, but if you get water pooling back to a seam it is going to leak no matter what. He said you could repitch the roof by adding some roof insulation material and reroof it. He gave a rough quote of about two grand. It seems like there are pleny of flat roofs around. There has got to be a cheaper solution. Any suggestions?