The Metal Construction Association (MCA) published a Best Practices Guide for Roof Seaming.
The document provides an overview of the different types of seaming for metal roofing, a glossary of terms, training guidelines, safety recommendations, pre- and post-seaming procedures, seaming operations, maintenance advice, and guides to sealants, clips, fasteners, and more.
“Proper seaming is critical to the long term performance of metal roofing and we saw a need to provide a general guide for installers that goes beyond what is provided by manufacturers,” says Scott Kriner, MCA’s Technical Director. This best practices guide is designed to familiarize personnel with the general knowledge, basic operation, safety, and maintenance procedures followed by standard troubleshooting suggestions for standard roof seaming processes. It is a general guide to be used in conjunction with the material installation guide and the project's erection drawings.
The guide is available on its website at no cost. It can be found here.