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A comprehensive guide on roof flashing

by jamesjones

Roofs are the most important part of your house as it protects your house from snow, rain, sun, and even UV radiation. But the bitter truth is roof is also the most overlooked part of the house as most people take it for granted. 

For making the most of the roof, not only the right roof material and an ideal contractor are necessary but a proper roof installation is also crucial. Without proper installation, even the best roofing material won’t be able to provide you the basic protection from leakage and other issues. 

Well, the most overlooked aspect of roof installation is obviously roof flashing. If you are not aware of roof installation then it might sound like an alien term. But don’t worry, as, in this blog post, we will discuss all that you need to know about roof flashing in a detailed manner. 

What is roof flashing?

Flashing is a type of thin material that is used on roofs. It is installed on those areas of the roof where a projection intersects with the roof like skylight or chimneys. If these areas are not properly sealed then the specific areas of the roof can succumb to regular leaks. The intersections always expand and contract as per the climatic condition. 

If you have chosen from a list of the best roofing companies in Lake Charles LA, then you can be sure that the flashing installed on the surface supports the contraction and expansion of interaction and it also provides a tight seal to avoid any type of leakage. 

Which type of material is used for flashing?

There can never be an ideal material for flashing as different roofing companies in Lake Charles LA use different flashing materials and they all have their own advantages and disadvantages. From common metals like stainless steel, lead, aluminum, and copper to plastic and composite materials, many things can be used for roof flashing. 

But when it comes to the most durable flashing material then most roofers go with metal sheets. Copper is the most preferred metal sheet used for flashing as it is more durable than other metals. In addition to this, copper comes with the unique feature of being adaptable to seasonal changes. 

Plastic might be an economical option for roof flashing but it doesn’t last long and you might have to replace them every year or after every 6 months. An ideal roofer will always suggest you go with metal sheets for flashing. 

Where is roof flashing used?

Joints and valleys

When it comes to water penetration then the most susceptible part of the roofs are the joints and the valleys. In most cases, the roof joints aren’t watertight and roof valleys collect more water than any other part of the roof. 

Drip edging 

Along with joints and valleys, roofing contractors Louisiana use flashing at the edges of the roof as well. This helps the water from getting behind the gutter and thus every drop of water is directed away from the roof. 


Chimneys can easily collect water and water can run through them. This is why it is necessary to use flashing in chimneys. The flashing is installed at the base of the chimney to avoid the water infiltrating from the joint between the chimney and roof. 


If your roof has a couple of pipes that are penetrating the surface of your house then you might need flashing at the pipes as well. It is necessary for roofing contractors Louisiana to use flash in such pipes since they can compromise a waterproof roof. 

Roof Protrusions

If anything is jutting out of your roof then it becomes necessary to use roof flashes. For example, if you have a couple of cables attached to your satellite that is sitting on your roof then you should use roof flashes. 

Benefits of roof flashing 

With the help of proper roof flashing, you can keep the weak parts of your roof safe. There are many weak parts of the roof that needs extra protection to avoid leaks or further damage to the structure of the roof and this is where roof flashing acts as a savior. 

In addition to this, roof flashes also protect sloped roofs from becoming damaged. This means that with roof flashing, you can avoid making the roof vulnerable to flooding. Besides, flashing an impervious water membrane for the roof. 

Without proper roof flashing, the lifespan of your roof can decrease and you might have to deal with common issues such as leakage, growth of mildew and mold, and much more. 

This is why, after choosing an ideal roofing contractor, make sure that they are using the best material and the best process for roof flashing during the installation process as, without it, the entire roof will be vulnerable to a long list of issues. 

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