SPRI publishes new Wind Design Guide

Needham, MA, April 2001 - SPRI is proud to announce that a new version of its "Wind Design Guide for Low-Sloped Flexible Membrane Roofing Systems" is now available. Completely revised and updated, SPRI's easy-to-use wind design guide incorporates the most recent data from ASCE 7-98 (American Society of Civil Engineers) wind speed tables.

SPRI, the association representing sheet membrane and component suppliers to the commercial roofing industry, published this informative guide for designers, specifiers and installers of smooth-surfaced, low-sloped flexible membrane roofing systems.

This 23-page wind design guide focuses on mechanically fastened and fully adhered flexible membrane roof systems. (Ballasted flexible membrane roof systems are covered in the ANSI/SPRI RP-4 document entitled "Wind Design Standard for Ballasted Single-Ply Roofing Systems.")

SPRI's wind design guide features an easy-to-use procedure for calculating wind uplift pressures based on ASCE 7-98 "Minimum Design Loads for Buildings and Other Structures." It lists all the design considerations, such as building location and height as well as roof slope and structure, which should be evaluated when specifying a roofing system.

This version of SPRI's wind design guide includes handy "Quick Reference Tables" for all four wind exposure categories, which deal with the type of terrain surrounding a building.

Furthermore, actual examples clearly demonstrate the steps to take in order to apply this data to real-world situations.

For additional guidance, the SPRI wind design guide also includes a basic wind speed map for the entire United States.

Single copies of this new SPRI wind design guide can be ordered for $20 from SPRI by calling 781-444-0242, faxing 781-444-6111 or connecting on-line to www.spri.org.