Using natural stone for both interior and exterior design is a global trend. However, the variety of finishes that enhance the unique character of these stones is not widely known. From polished to honed, brushed to sandblasted, these finishes provide granite surfaces with exceptional texture and appearance, influencing their beauty, functionality, and durability.
What is Flamed Stone?
Flamed stone is a product of a thermal finishing technique, representing innovation and new design possibilities. This process involves using an acetylene torch's white-hot flame to treat the stone’s surface. For instance, when creating flamed granite, the granite is subjected to this intense heat.
Fire burnishes the stone surface, resulting in a rough finish. This method is particularly visible in exterior entrances and flamed floors. The rough texture and enhanced slip resistance make flamed stone a popular choice for commercial structures.
Because flamed granite can absorb liquids, sealing is essential, especially for outdoor installations exposed to the elements. The sealer, which protects against non-acidic liquids like water and oil, needs to be reapplied annually for optimal protection.
Characteristics of Flamed Stone
Flamed stone offers an antique and dull appearance due to its unique composition of minerals that expand at different rates when heated. Granite, in particular, is ideal for this process, often leading to the synonymous use of flamed stone and flamed granite.
This technique, also known as stone burning, creates a weathered look by exposing the granite surface to high temperatures. When referred to as flamed or thermal stone finish, it means the surface has been treated with a white-hot flame to achieve a rough and non-slippery texture.
For example, applying a powerful flame to Absolute Black Granite results in a significant transformation, providing a rough surface texture. This finish is mostly applicable to granite and some firm limestone types, making it suitable for areas prone to moisture. The flamed finish enhances the stone's weather resistance and slip resistance, making it ideal for outdoor living spaces.
Benefits of Flame Finish Stone
Flame finish stone is characterized by:
Extremely textured and rough surfaces
Applicability mainly to granite and certain limestone varieties
A natural, aged appearance
Subdued, earthy tones
Excellent dampness and slip resistance
Challenges in cleaning due to its rough texture
Ideal Uses for Flamed Stone
The rough, vitreous texture of flamed granite makes it perfect for exterior coatings. Its anti-slip and weather-resistant qualities make it suitable for both indoor and outdoor use, especially in wet areas. Flamed granite is commonly used in pool decks, patios, and outdoor walkways, often combined with other stones to create unique patterns.
For those who appreciate the look but prefer a smoother surface, flamed granite can be polished down, making it more comfortable for interior use.