In today's world, energy efficiency is a top priority for many individuals and organizations. Saving energy not only helps to protect the environment and reduce greenhouse gas emissions, but it also saves money and promotes economic growth. The building sector is one of the biggest consumers of energy, accounting for almost 40% of the global energy use and 30% of the CO2 emissions.

Therefore, improving the building efficiency is critical for achieving the sustainable development goals and reducing the carbon footprint. One of the most effective ways to achieve this goal is through building insulation. Insulation refers to the materials and techniques that reduce the heat transfer between the inside and outside of a building, thereby keeping the indoor temperature comfortable and stable.

Roof insulation is a crucial component of the building insulation system, as the roof is the most exposed and vulnerable part of the building envelope. A poorly insulated roof can lead to heat loss, condensation, mold growth, and structural damage. On the other hand, a well-insulated roof can help to reduce the heating and cooling costs, improve indoor air quality, and increase the lifespan of the building.