Why Flamed Granite is the Best Choice for Outdoor Applications

Granite has been used for centuries in both interiors and exteriors, earning its place as a popular choice worldwide. Despite its widespread use, many people are unaware of the variety of finishes available and their specific applications. From polished and honed to flamed and sandblasted, each granite finish offers unique characteristics and versatility. However, some finishes are particularly suited for specific purposes. Flamed granite, for instance, is ideal for exterior or outdoor applications. Why is that?

Before understanding why flamed granite is suitable for exterior applications, let’s first understand what it is and how it’s achieved. Knowing the process behind creating flamed granite will give you better insight into why it’s especially suitable for certain applications especially on the outdoors or exterior. So, let’s look into the process and uncover the reasons that make it the right choice for specific uses.

What is Flamed Granite?

Flamed granite is also referred to as thermal finish granite, rough finish, textured finish, or fire-treated finish granite. This name comes from the unique treatment applied to its surface. In this method, skilled professionals carefully move an oxy-acetylene torch evenly across the granite’s surface. The intense heat causes the crystals in the stone slab to expand and then contract rapidly. This abrupt temperature change leads to the surface layer cracking and chipping, resulting in a rough, textured finish. 

Thermal finish can be achieved on thicker slabs because the heat can penetrate evenly, ensuring a consistent rough texture. Thicker slabs are more durable, allowing the thermal treatment to expand and form a controlled, long-lasting finish without cracking.

Characteristics of Flame Finish Stone

A flame finish stone has several distinctive characteristics:

Rough, Textured Surface: The surface of flame-finished stone is highly textured and rough. 

Limited Applicability: Not all natural stones can undergo the flamed finish process. It is most commonly applied to granite and some limited varieties of other natural stone.

Natural and Aged Appearance: The flame treatment gives the stone a natural, weathered (Antique) look.

Earthy Tones: Flame-finished stones typically come in muted, earthy tones like grays, browns, and ochres, making them blend seamlessly into a variety of design styles, particularly in outdoor settings.

Non-Slip: Thanks to its rough texture, a flamed finish stone provides excellent traction, reducing the risk of slipping, especially in damp or wet environments.

Challenging to Clean: The texture of a flamed surface can make cleaning a bit more difficult, as dirt and grime can settle into the rough surface. Regular cleaning and maintenance are needed to keep it looking its best.

These characteristics make flame-finished stones a durable and functional option for various applications, especially in exterior and high-traffic areas.

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Why Flamed Granite Finish is More Suitable for Exteriors?

Flamed granite is a popular choice for outdoor applications like flooring, staircases, swimming pool edges, fountains, curbs, and shower trays. There are several reasons why it’s particularly suited for outdoor use:

• Slip Resistance: The rough texture created by the flaming process makes the surface highly slip-resistant, even when wet. This is crucial for outdoor spaces like pool areas, fountains, and walkways, where moisture is common.
• Weather Resistance: Flamed granite is highly resistant to the elements. The high-heat treatment enhances its ability to withstand temperature fluctuations, UV rays, and moisture, making it an excellent choice for outdoor environments exposed to harsh weather conditions.
• Durability: The process of flaming the granite enhances its surface toughness. It can resist wear and tear, making it suitable for high-traffic outdoor areas like sidewalks, driveways, or public spaces.
• Natural Look: The textured surface of flamed granite retains a natural, rustic appearance, making it an attractive choice for landscaping and outdoor designs. It blends well with both modern and traditional settings.

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Types of Flamed Finish Granite

Flamed granite can come in several variations, depending on factors like the type of granite, the intensity of the flame, and additional finishing techniques. Here are some common variations:

Standard Flamed Finish Granite

 This is the most common variation, with a rough, textured surface created by applying intense heat to the granite. It’s ideal for outdoor applications due to its slip-resistant properties.

Flamed Brushed Granite

After the flamed finish is applied, the surface is brushed to remove loose debris and smooth out some of the roughness. This makes the stone more comfortable for indoor use.

Flamed Polished Granite

Flamed Granite in Indoors

When using flamed granite for indoor applications, the surface can be too rough and coarse for bare feet due to its textured finish. To make it more comfortable for interior spaces, such as bathrooms, a brushed finish can be added. This process helps smooth out the roughness by removing any loose debris created during the flaming process, making the surface safer and more pleasant to walk on. So, while flamed granite is perfect for outdoor areas, like patios, front porch, walkways, etc., adding a brushed finish makes it suitable for indoor use without compromising its durability or appearance.

How is Flamed Granite Texture Different from Other Finishes?

Flamed granite stands apart from other finishes such as polished, honed, brushed, and textured options like leathered, Lapotra and sandblasted finishes. Let’s look into a comparison of each finish with flamed granite to have clearer insights and better understanding.

Difference Between Flamed and Polished Granite

Flamed is rough and slip-resistant, while polished is mirror like smooth and shin, often slippery when wet.

Flamed vs Honed Granite

Flamed finish stone has a rugged texture ideal for exteriors, while honed is matte and smooth, suited for interiors and exterior

ALSO READ | Honed vs. Polished Granite – What to Choose and Why?

Flamed and Brushed Granite 

Flamed granite has a coarse, highly textured surface created by intense heat treatment, resulting in a rough and uneven finish. In contrast, brushed granite offers a softer texture with a slightly weathered appearance. While it retains some texture, the brushing process smoothens the surface, giving it a more refined and tactile feel compared to the raw coarseness of flamed granite.

Leathered or Flamed Granite

Flamed has a raw, natural appearance, while leathered has a subtle texture, a softer feel with slightly rough texture that lies between the coarse feel of flamed granite and the smoother finish of honed granite.

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Sandblasted Vs Flamed Granite

Sandblasted granite has a fine, uniform texture with a matte finish, making it softer and less rugged than flamed granite. Flamed granite, on the other hand, has a coarser, rough surface with a raw, natural look due to intense heat treatment. Sandblasted is ideal for decorative uses, while flamed is better suited for outdoor, slip-resistant applications.

Conclusion

flamed granite is a highly durable and slip-resistant option, making it ideal for outdoor applications like walkways, pool areas, and staircases. Its rough, textured surface provides excellent weather resistance and a natural, rustic look. While it may not be suitable for indoor use in its raw form, adding a brushed finish can make it more comfortable for interior spaces. When compared to other finishes, flamed granite offers a unique balance of ruggedness and functionality, setting it apart from polished, honed, or sandblasted granite finishes.

Explore our wide range collection of  flamed granite slabs and tiles pefect for outdoor spaces and high-traffic areas, our high-quality granite offers both aesthetics and functionality. With a variety of flamed granite finishes to suit your design requirements, Stone Galleria stands as a trusted leader in granite processing in India.