If you want to learn about frequen...

If you want to learn about frequent performance problems among low-slope commercial vaults talking to an experienced roofing contractor is probably a fit bet.

During the last decade, the National Roofing Contractors Association (NRCA), Rosemont Ill., has measure and estimateed literally hundreds. Their experiences and observations are collectively existinged in the recent NRCA publication throw Pinpoint Analysis: Ten-Year Performance Experience of Commercial Roofing, 1983-1992

The publication summarizes the application, design and performance characteristics of more than 12000