How Long Should Roof Flashing Last?
Modern Ceramic Tile Roof with Chimney against the Sky extreme closeup.

How Long Should Roof Flashing Last?

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How Do You Fix Roof Flashing?

Roof flashing repair services should be your first resource when your roof flashing is damaged. Fixing your own roof flashing is inadvisable since roofs can be extremely dangerous without proper safety equipment. The steps that your roofer will use to correct your roof flashing are as follows:

  • Roughen up the area around the hole with a wire brush or sandpaper.
  • Next, the are will need to be cleaned.
  • A patch that is larger than the hole will then be cut, and then it will be affixed with roofing cement.
  • The patch will then be covered with more roofing cement.

At the end of the day, flashing that is deteriorated or rusted will need to be replaced.

Modern Ceramic Tile Roof with Chimney against the Sky.

How Much Does it Cost to Replace Roof Flashing?

According to the national average, the cost to replace chimney flashing vacillates between three hundred dollars and four thousand dollars. Of course, more serious flashing repairs will cost more than a minor flashing replacement, which is why the range is so vast. The final cost for roof flashing replacement will also depend on the location of the flashing, and the current condition of the flashing.

Is Flashing Required on Roof?

There are several different types of flashing. Variations include chimney flashing and step flashing. Areas of the roof that are particularly susceptible to water damage, such as around exterior walls and roof valleys, will require the extra protection that flashing can provide. Flashing is formed according to where the flashing must be applied, and the job it was developed to fulfill.

How Long Should Roof Flashing Last?

Roof flashing is expected to last fifteen to twenty years, but in some cases, depending on the quality of installation, it could last longer. In fact, if the quality of materials and installation are very high, the flashing could last as long as fifty to eighty years. That’s why it’s imperative to procure the services of a reputable roofing company.

Can I Paint Roof Flashing?

It’s important to consider the material that your flashing is composed of. Galvanized flashing is an efficient material that protects the roof from unwanted water damage. Other varieties of roof flashing are made of plastic, roofing felt, or rubber, though it is preferable for flashing to be composed of galvanized steel. While galvanized flashing can be painted, the task should only be undertaken by a professional. A qualified roofing contractor will have painting recommendations dependent upon your roofing material and color palette.

Can Roof Flashing Be Reused

When it comes to your roof flashing, it pays to completely replace it whenever it is recommended by a reputable roofer. Roof flashing may be mentioned in a roof inspection and the subsequent roofing estimate. Not all roofing estimates will include a flashing replacement, however, homeowners are advised to insist upon a new flashing replacement when there are water problems in the area. Instances that are favorable for flashing replacement include when your roof is being replaced, or when there is water damage evident in the area. The flashing, composed of thin sheets of metal, should be installed to prohibit the channeling of water into the roof structure from an angle or joint. When properly installed, flashing can last a very long time without needing to be replaced.

What is Roof Flashing Used For

It is essential for your roof to be impermeable to water for as long as possible. Flashing makes this possible. Flashing acts as a barrier or sealer in between joints in the roof. Flashing is commonly used around vents, chimneys, and skylights. These thin sheets of metal stop water before it permeates the wall of the fixture and the shingles. When flashing is properly installed, water should be funneled toward the gutters. The function of your home is important for your continued enjoyment and longevity. If you notice that one or more of your drains is clogged, drain cleaning services in Asheville, NC can alleviate the cause.

What Gauge is Roof Flashing?

The dimensions of flashing are fairly standard. For exposed face dimensions that are in the range of four to eight inches, twenty-four gauge galvanized steel is optimum. Thicker metal is usually reserved for areas that need more protection.


What Sealant For Roof Flashing

Polyurethane is one of the usual flashing sealants utilized for flashing installations and repairs. Polyurethane, one of the substances refined as a commercial-grade sealant, forms permanent water and weatherproof seals in all exterior gaps and joints. Different brands have different blends of sealants. Masonry caulk and roofing cement are recommended for exterior use on roofs, chimneys and more. 

Roofwise is your local skilled roofing company, providing property owners with roof flashing in Raleigh, NC. Give us a call at 919-823-6253 to fortify your roofing system!


Brick chimney