In rock wool boards, water repellency is not equivalent to waterproofing, involving two distinct concepts. Here is a detailed explanation of the differences between the two:

Water Repellency:

Rock wool boards typically exhibit water repellency, meaning their surfaces have a certain degree of resistance to water, making it less prone to penetrate the material. This water repellency is achieved primarily through surface treatments or the addition of water-repellent agents. The main function of water repellency is to slow down water penetration, keeping the rock wool relatively dry.

Waterproofing:

In contrast to water repellency, waterproofing refers to completely preventing water from infiltrating the interior of a building structure, ensuring its complete seal against water. Waterproofing often requires the use of specifically designed building materials for waterproofing or the addition of additional waterproof layers to prevent moisture from permeating through the walls, roof, or floor of the building. Waterproofing is a crucial factor in ensuring that the building structure is not compromised by water, especially in humid environments or areas exposed to rainfall.

In summary, the water repellent nature in rock wool boards allows them to resist water to a certain extent but is not sufficient to ensure complete waterproofing. Therefore, in situations where waterproofing is required, it is recommended to use specially designed waterproofing materials and implement appropriate waterproofing measures above the rock wool boards to ensure compre