How to Flash a Chimney
The first step in flashing a chimney is to install the counterflashing. This is the material you use across the face of the chimney. It returns three inches on each side. It is important to place it at the corners of the chimney and mark it with a felt-tip marker. Once installed, place the shingles on top of the saddle. Make sure to overlap the counterflashing by four inches.
To apply the flashing, you need to measure the height of the chimney and the slope of the roof. When installing chimney flashing, make sure to follow the manufacturer’s directions and use nails that are as far back from the crease as possible. Insert a single nail into each of the corner flashings. The next step in flashing is to add shingles to cover the step-flashing. Continue adding shingles in this fashion until you reach the base of the chimney.
After cutting and placing the shingles, you need to install the base flashing. Then, use hammers to hammer the nails into place. The base flashing should cover the naked sides of the chimney. Ensure that you have a tight fit between the shingles and the masonry by overlapping the lower flanges of the cricket. Then, proceed to attach the shingles on top.
The next step in flashing a chimney is to remove the old counterflashing. Then, use a narrow brush and air compressor to clean the mortar joints. You should always wear safety glasses and a dust mask while working on the roof. This will ensure that the flashing is secure and will not come loose. Then, use the counterflashing to cover the old flashing. Then, insert the second step in flashing the chimney.
The next step is to place the counterflashing into the chimney’s reglet joint. Then, insert the second step flashing into the chimney’s base. This way, the chimney will look smooth and seamless. Once it is in place, it will be ready to go. Once the flashing is in place, the chimney will look great. If you have a large roof, you should also place the counterflashing under the shingles.
Once the baseflashing is in place, you can move on to the next step. Then, place the counterflashing pieces at the corners of the chimney. Once you’ve finished this step, you should use your counterflashing to cover the entire chimney’s naked sides. Once complete, you should continue to add additional steps to the chimney’s base. This step is called the “counterflashing.”
The next step of flashing a chimney is to cut the counterflashing. You need to cut a 1/4-inch-deep horizontal channel using a diamond blade or a circular saw. Before using the counterflashing, you should measure the chimney and make sure it fits properly. You should be careful when selecting the counterflashing, as it can cause water damage. If you want to keep your fireplace, then you need to ensure that the pipe is protected from rain and other damages.