Step Flashing With Sheet Metal Counterflashing

To avoid damaging the chimney when reroofing use the gentlest possible method to remove counterflashing.

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. L shaped flashing is a versatile general use flashing used where a uniform or strengthened finish is needed on a 90 surface. Make sure the caulk joint between these two pieces is bedded evenly. Open valleys have metal flashing to protect this critical area of the roof.

The first piece of step flashing needs one bend so that it laps cleanly over the corner flashing installed in the previous step. It wraps corners and overlaps step flashing below. Have a sheet metal shop solder all seams so they ll be watertight. The term reglet flashing refers to an installation method for counter flashing not a separate layer.

Then sink one nail into the sidewall to hold the step flashing in place. More product details close. Counter flashing is the final layer of a three part waterproof barrier installed between a roof and a vertical wall or chimney. 150 pine street grayslake il 60030.

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 concept of counterflashing is simple. 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. Made with 28 gauge galvanized steel l flashing can play an essential part in protecting your home against water damage.

It is called step flashing because the pieces step up the roof just like shingles do. L flashing can be cut into smaller lengths to use as step flashing. A piece of step flashing is a sheet metal l or angle about 6 to 12 inches long. The cricket on the upslope side is also complex.

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. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. A second upper layer of protection is provided to keep water from penetrating behind the first lower layer. Counterflashing is commonly used near the juncture of masonry and a roofing materials.

It is used most commonly to flash the joint where a roof plane meets the vertical surface of a wall dormer or chimney. The first two layers are called base flashing and step flashing. Replace counterflashing and base flashing.