Can Iran's Porteghali Onyx be used exterior applications in very rainy climates?
The Porteghali Onyx is a type of marble that is commonly used for interior applications such as countertops, flooring, and wall cladding. While it is a durable natural stone, it may not be suitable for exterior applications in very rainy climates.
Marble is a porous material, and constant exposure to rain and moisture can cause it to absorb water and potentially lead to issues such as staining, cracking, or deterioration over time. Additionally, in areas with freezing temperatures, water absorption can lead to freeze-thaw damage.
If you plan to use the Porteghali Onyx for an exterior application in a rainy climate, it is important to consider proper sealing and maintenance to minimize water penetration. However, even with sealing, it is recommended to choose a more suitable natural stone or alternative materials like granite or engineered quartz for outdoor use in such conditions.














