About MRCA Technical & Research Committee
The MRCA Technical and Research Committee is comprised of a group of dedicated contractors and prestigious advisors who serve as a powerful watchdog in the industry, protecting contractor interests and informing members about the viability of new and existing roofing systems.
The committee also collaborates with NRCA on a number of important technical projects.
Complimentary Technical Advice
MRCA members can take advantage of complimentary technical advice by sending their questions or concerns to info@mrca.org.
Not a Member?
Join MRCA and receive access to technical support and many other valuable member benefits for your company.
Join MRCARecent Research
Click Here to View Full List2019 Low Rise Foam Research Project with WJE
- Click Here for a Summary of the findings of the Low Rise Foam Adhesive Research Project.
- Click Here for a Full Report of the findings of the Low Rise Foam Adhesive Research Project (Members Only - Exclusive Member Downloads)
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(Mark Langer viewing study at WJE lab) |
(Adhered Insulation Specimen) |
Roof Wind Designer
Roof Wind Designer provides users with an easy-to-use way to determine roof systems’ design wind loads for many commonly encountered building types subject to building code compliance.
Design wind loads are derived using the American Society of Civil Engineers Standard ASCE 7, Minimum Design Loads for Buildings and Other Structures. This standard is widely recognized and serves as the technical basis for wind load determination in the International Building Code and NFPA 5000: Building Construction and Safety Code.
Roof Wind Designer allows users to choose between the 2005 or 2010 editions of ASCE 7. It uses Method 1 — Simplified Method for the 2005 edition, and the Envelope Procedure, Part 2: Low-rise Buildings (Simplified) of Chapter 30 for the 2010 edition. For a more detailed explanation of the two editions, please click here.
Roof Wind Designer also determines roof systems’ minimum recommended design wind-resistance loads, taking into consideration a safety factor in reliance on ASTM D6630, Standard Guide for Low Slope Insulated Roof Membrane Assembly Performance. Using these minimum recommended design wind-resistance loads, users can select appropriate wind-resistance classified roof systems and edge-metal flashing systems.
Roof Wind Designer has been developed and is maintained by the National Roofing Contractors Association (NRCA), with the support of the Midwest Roofing Contractors Association (MRCA) and the North/East Roofing Contractors Association (NERCA). Currently, this application is available at no cost.
