Step Flashing With Sheet Metal Counterflashing

Make sure the caulk joint between these two pieces is bedded evenly.

Step flashing with sheet metal counterflashing.

The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. 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. L shaped flashing is a versatile general use flashing used where a uniform or strengthened finish is needed on a 90 surface.

With step flashing you do a little flashing then. The first piece of step flashing needs one bend so that it laps cleanly over the corner flashing installed in the previous step. Counterflashing is a derived term of flashing. The first two layers are called base flashing and step flashing.

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 term reglet flashing refers to an installation method for counter flashing not a separate layer. 2020 sheet metal supply ltd. It is used most commonly to flash the joint where a roof plane meets the vertical surface of a wall dormer or chimney.

Then sink one nail into the sidewall to hold the step flashing in place. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. 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. It is called step flashing because the pieces step up the roof just like shingles do.

It wraps corners and overlaps step flashing below. More product details close. Made with 28 gauge galvanized steel l flashing can play an essential part in protecting your home against water damage. A second upper layer of protection is provided to keep water from penetrating behind the first lower layer.

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. The cricket on the upslope side is also complex. 150 pine street grayslake il 60030. Counter flashing is the final layer of a three part waterproof barrier installed between a roof and a vertical wall or chimney.

Have a sheet metal shop solder all seams so they ll be watertight. A piece of step flashing is a sheet metal l or angle about 6 to 12 inches long. To avoid damaging the chimney when reroofing use the gentlest possible method to remove counterflashing.