If you’re looking to install flashing to an existing roof there are some factors you’ll have to take into consideration. First, you’ll need to make sure that your roofing is in excellent repair and there aren’t leaks. Once you’ve confirmed that the roof is in good condition then you’ll have to determine the area where you’ll be installing the flashing. After you’ve measured the area, you’ll have to cut the flashing according to the size and then put it in place using screws or nails.
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Determine the area that will be flashed
The measurement of the area to be flashed is a crucial first step to install flashing onto an old roof. You will need to know the measurements of the space to be flashed in order that you can buy the right quantity of flashing material. Additionally measuring the size of the size of the area will provide you with an comprehension of the structure of the roof and how the flashing will need to be installed.
Cut flashing to size
Start with cutting your flashing into size. In the case of a pre-formed pan it’s just necessary to cut it so that it can extend 6 inches beyond the roof’s edge. For roll roofs, make the flashing cut twice the length of the width of the roof. Then cut the flashing in half vertically so that you have two pieces which are the same size as the roof’s width.
Get rid of any old shingles or nails
For installing flashing on an existing roof first you’ll need to take off any old nails and shingles. After that you can then install your new flashing. Make sure to overlap the new flashing by at least 2 inches, and then use corrosion-resistant nails or screws to hold it in the right place.
Make sure that flashing is secured to the roof
If you have an existing roof, you’ll need to be careful in putting up flashing. First, take off any shingles or other materials that may be blocking the path. After the roof is cleared then you’ll have be able to cut and measure the flashing to fit. Make sure you leave plenty of an overlap to ensure that the flashing is securely attached to the roof. After the flashing is set, you can install the new shingles , or any other roofing materials.
Nail flashing held in place
1. Make sure the surface is free of debris.
2. Measure the area to be covered, then cut the flashing according to the area.
3. Apply a large amount of adhesive to the reverse of the flashing.
4. Press the flashing into place and keep it in place for a few minutes to allow the adhesive to set.
5. Fix the flashing with roofing nails.
6. Apply a bead of sealant around the perimeter of the flashing to secure it in position.
Seal the seams with roofing cement
Once you’ve cut the flashing strips to size, lay them on the roof so that they are overlapping the joints in the roofing material by at least 2 inches. Once you have the flashing placed on the roof, apply a continuous layer of roofing cement on the underside of the overlap. Utilize a putty blade for smoothing the cement, and then take off any excess.
Apply caulk all over the flashing
In order to install the flashing onto an already-existing roof you’ll need to apply caulk to the flashing. Begin by removing any previous caulk or debris off the surface. After that, apply a substantial amount of caulk to the underside of the flashing. Be sure to smooth it so that it’s even and level. After that, press the flashing into place and seal it with more caulk.
Install additional shingles if necessary.
If you’re installing flashing on an old roof structure, it might require the installation of additional shingles to create an adequate surface for flashing to stick to. Start by removing any loose or damaged shingles. Next, you need to put the new shingles in the appropriate spot. Be sure to overlap the shingles in order that the flashing will be completely protected.
If you’re considering installing flashing on your existing roof, there are a few points to keep in mind. First, be sure that you’re using the correct equipment and materials. Then, take your time and be careful not to damage your roof. Thirdly, if you’re unsure of what you’re doing it’s best to employ a professional. With a little bit of planning and attention it is possible to install flashing on your roof to ensure that your home is in good condition for many years to come.