Swarn Veer Singh Jaral
Due to the contribution of sustainable resources and energy, the development and deployment of green building materials plays an important role in the field of green building. One inventive way to conserve resources and energy is to use green building materials. The most common type of greenery is green roofing, which is more common in Europe, North America, and some countries in tropical Asia. The development of green roof technology is considered to be at the top of international rankings in Germany. Compared to conventional construction, a green building consumes less water, maximizes energy efficiency, preserves natural resources, produces less waste and provides healthier places for residents. Although there are other benefits as well, green roofs are often created to improve the energy efficiency of homes. Green buildings, which are considered a natural cooling mechanism, have a powerful ability to reduce energy consumption and mitigate the impact of heat islands through many processes. The thermal comfort of a house, which reflects the level of comfort of a human being, is one of the main factors affecting its energy consumption. But one of the benefits of green buildings is energy savings. Green roofs can have a significant impact on building size and climate as they make up 20-25% of total urban space. Adding layers has enhanced thermal insulation while adding a layer, such as insulation boards, has higher insulation efficiency. Roof insulation can reduce heat transmission and increase indoor temperature, making it an effective method for environmentally friendly construction.
According to research on thermal insulation in different types of green roofs, there is potential for energy savings of 20-30% on an extended scale, 60-70% on a semi-intensive scale and 45- 60% at intense scale. In a humid tropical environment, the hypothesis of buildings with insufficient thermal insulation associated with green roofs revealed that poorly thermally insulated roofs, with thicker substrates and low planting densities do not provide a suitable level of internal cooling.
Therefore, to maximize the passive cooling of green roofs in a humid tropical environment, insulation, plant density and layer thickness are all required. It is clear that cork insulation, a naturally renewable resource, is the best choice for green building insulation since it can be used in place of polymeric insulation.
Jammu and Kashmir is renowned for its many beautiful features including high altitude renewable natural trees. Tree bark is a durable natural material that is organic. It is a greener material than glass, plastic and metals, which pollute and pose health risks. It is also an important component of nature-related themes aimed at improving the psychological well-being of the inhabitants. Wood and wood products are also used as flooring and bedding materials in animal husbandry, where they help promote animal health and welfare.
Meanwhile, due to its porosity and hygroscopic nature, the safety of the wood material in hygienically critical places is questioned. The bark’s low density, relatively good resistance to microorganisms, low thermal conductivity and high heat storage capacity make it attractive for use as insulation. Bark is also an economically promising resource as it is a by-product of wood manufacturing and is rarely used for higher value items. As a result, it has excellent properties such as low density, high extract concentration, good thermal insulation characteristics and low flammability. Thus, the use of the renewable bark of the tree to make insulating panels and use it in buildings is the ideal alternative for energy saving, improving indoor cooling, respecting the environment. environment, economic efficiency and ease of availability, etc.
(The author is a PhD student in mechanical engineering)