[janloot]

i have been roofing most of my working life, most recent flat roofs (last 25 years or so) would have been laid in modern materials, and far superior to the old flat roof bad name syndrome, i am now retired with two new knees, but i would think if its lasted 17 years, its been laid correctly, and will last indefinetly, roofing products are better these days, not every roofer is a cowboy, whoever did the job originally took care and had pride in his work, remember the old saying if it isnt broke dont fix it,