Step Flashing With Sheet Metal Counterflashing

A second upper layer of protection is provided to keep water from penetrating behind the first lower layer.

Step flashing with sheet metal counterflashing.

The concept of counterflashing is simple. The term reglet flashing refers to an installation method for counter flashing not a separate layer. 150 pine street grayslake il 60030. Make sure the caulk joint between these two pieces is bedded evenly.

The first two layers are called base flashing and step flashing. A piece of step flashing is a sheet metal l or angle about 6 to 12 inches long. L flashing can be cut into smaller lengths to use as step flashing. It wraps corners and overlaps step flashing below.

Replace counterflashing and base flashing. 2020 sheet metal supply ltd. Counter flashing is the final layer of a three part waterproof barrier installed between a roof and a vertical wall or chimney. With step flashing you do a little flashing then.

Then sink one nail into the sidewall to hold the step flashing in place. It is used most commonly to flash the joint where a roof plane meets the vertical surface of a wall dormer or chimney. As nouns the difference between counterflashing and flashing is that counterflashing is construction formed metal or elastomeric sheeting secured on or into a wall curb pipe or other surface to cover and protect the upper edge of a base flashing and its associated fasteners while flashing is roofing components used to weatherproof or seal. The cricket on the upslope side is also complex.

Open valleys have metal flashing to protect this critical area of the roof. Counterflashing is commonly used near the juncture of masonry and a roofing materials. Surface mounted counter flashing is used near the juncture of masonry and roofing materials to shed water from the masonry base onto the roof surface. Counterflashing formed metal or elastomeric sheeting secured on or into a wall curb pipe rooftop unit or other surface to cover and protect the upper edge of a base flashing and its associated fasteners.

The first piece of step flashing needs one bend so that it laps cleanly over the corner flashing installed in the previous step. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. More product details close. Made with 28 gauge galvanized steel l flashing can play an essential part in protecting your home against water damage.

Have a sheet metal shop solder all seams so they ll be watertight. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. Counterflashing is a derived term of flashing.