Roof To Sidewall Joint Sealing

A metal roof is engineered to last decades sealing out water and wind and easily shedding snow.

Roof to sidewall joint sealing.

A roof expansion joint emseal roofjoint is a patented dual seal double flanged extruded thermoplastic rubber system for sealing expansion joints in roofs. Watertightness is achieved through positive integration with the roofing membrane and a purpose designed system for transitioning between the joint in the roof and joints in walls. I have looked over the front cap as well and it appears sealed well. I have the service tip on roof to sidewall joint.

Below we illustrate that using a single piece of metal flashing where the uppermost edge of a shed roof abuts a vertical building sidewall works fine though the use of exposed nails see our photo below may form leak or wear points in the roof. It is designed to resist hail mold mildew rodents and other animals. For units without over the roof paint cap seal the roof fiberglass and trim with 072889 10 000 bright white urethane. The roof to sidewall joint is broken right above the leak area.

More questonable or ugly roof wall flashing examples. For units with over the fibergass roof skin awning rail. I have searched and read about this. The roofing longevity will always depend on the type of the metal roof installed and on the quality of the installation but metal roofs can last for more than 60 years.