Policy Imperatives for Capacity Building for
Low Carbon Construction and Building Materials

 

The construction sector is an important part of the economy, steadily contributing about 8 per cent to the national GDP over the last 5 years. Fuelled by strong economic growth, rising population and rapid urbanisation, it is one of the fastest growing sectors in India today. It also provides employment to 18 million people directly1. The downside is the enormous resource and energy footprint of the sector. The impact is set to only increase with a housing shortage of about 40 million houses in the rural spaces alone, for the Twelfth Five Year Period of 2012-2017. Given the massive growth in new construction and the inefficiencies of existing building stock worldwide, if nothing is done, greenhouse gas emissions from buildings are expected to more than double in the next 20 years. Added to this, the increase in activity due to reconstruction processes to rehabilitate climate refugees especially due to freak weather events - and the resource and carbon footprints of the industry sky rocketed.

As the climate changes there is a danger that current buildings in terms of design, location, use of building materials, and technology may not be suitable keeping in mind various impacts like rising sea levels, increased occurrence of severe weather events, increasing natural disasters and severe water shortages. Also, building material choices are important in sustainable design because of the extensive scope for impacting sustainability by reducing the embodied energy of the building materials during their extraction, processing, transportation, utilization, and even thereafter. Building resilience and adaptability in terms of capacity of a building to continue to function and operate under acute conditions, such as extreme temperatures, sea level rises, natural disasters, etc with the optimum use of available natural resources is a great challenge.

Challenges & Potential for Low Carbon Growth

Attention is now shifting towards a low carbon climate resilient (LCCR) development that looks at both mitigation measure against climate change and adaptation measure to deal with the impacts of the change. United Nations Framework Convention on Climate Change has identified this sector as being one of the cheapest avenues for mitigating climate change. As a response to the global attention on climate change, the Indian Government has taken steps to initiate a low carbon growth trajectory. The National Mission for Enhanced Energy Efficiency and National Mission for Sustainable Habitat propose solutions for buildings and urban infrastructure. A neglected aspect is climate proofing i.e. adaptation measures in the habitat sector against natural disasters at planning and design level. Another lacuna is the lack of attention towards the 70 million (population) strong rural spaces and small towns which are emerging as areas of high growth. The Ministries of Rural Development, Panchayati Raj and Human Resources Development, have articulated the need to incorporate ‘climate change’ in rural and semi-urban infrastructure development and reduce the demand for energy and resources required in the processes. Further, the Ministry of Rural Development intends to fill the gap in rural housing in an ecologically responsible manner by requesting state governments to develop region specific construction techniques.

Thus the policy intent is very clear. But due to lack of information and research in this field, no specific actions were taken to reduce or mitigate the damage. However, there is a lack of customized information and knowledge available on alternate technologies and their benefits (financial and environmental). While low carbon climate resilient concepts are proclaimed to have multiple benefits, there is no method for assessment, quantification and comparison. Also the huge existing capacity gaps have been a barrier to address these issues. Technical capacity building is a key gap in the sector. Discussions with stakeholders reveal that there is a lack of adequate opportunities available to build and strengthen skills in the area.

Another very important aspect is that of creating awareness about low carbon climate resilent concepts, technologies and tools among all stakeholders especially the end users. While architects have heard of alternate technologies, most developers and home builders have not and are unwilling to deviate from conventional energy and resource intensive technologies. A pull factor will be created when people demand or accept alternate technologies on par with conventional ones with respect to quality, costs and aesthetics.

Policy Imperatives

The movement towards a Low Carbon, Climate Resilient (LC-CR) development pathway is dependent on creating an enabling environment focusing on three key factors of knowledge (building a technology base), finance (devising innovative mechanisms) and policy (strengthening the institutional framework). Some policy imperatives for knowledge are :

There is a research need to fill knowledge gaps and customize technologies to local context. Research on the strength and durability of composite systems as compared to conventional ones, studies on strength and feasibility of vernacular technologies with an aim of standardization, research in terms of monitoring studies, risk analysis, cost comparisons between alternate and conventional RCC technologies. The next step is communicating this research to the grassroots.

There are design softwares available in the market that provide some insights into the process, however there is no consolidated tool to provide a bird’s eye view that can help in decision making. There is an urgent need to plug this knowledge gap. Carbon, water and resource footprints can be used as indicators to aid decision making.

Technical trainings for masons and engineers need to be organised on a regular basis. The existing network of building centres and technical institutes would be an ideal place to start technical capacity building. However there is an urgent need to build capacities of the network to be able to deliver. Introduction of LC-CR concepts in the technical curriculum will help shape the new generation of architects and engineers to use these materials and technologies.

Technical institutes in each district can also function as support cells for local users. On-site testing tools and training imparted to engineers especially to test alternate materials and technologies can help build confidence in them.

Creating localized inventories of technologies & experts who can execute these projects and existing buildings for exposure were suggested. Similar steps have been undertaken for energy auditors by the government. All government buildings and social housing scheme houses should be built using LCCR principles to build confidence in the technology. Exposure visits to such buildings will aid. This is important to create a demand for this type of construction.

Capacity building of media personnel to propagate ideas of LC-CR construction and make people aware of a low carbon lifestyle. Also, they need to be made aware of the options available to them, an alternatives to conventional energy intensive construction techniques.

The transition to a low carbon pathway is not just a function of technology and design. The key to a successful transition is behaviour change among all stakeholders especially user communities. Guidelines for use of spaces should be part of the design process and shared with occupants on a regular basis. q

Kriti Nagrath
knagrath@devalt.org

Endnotes

1 Human Resource and Skill Requirements in the Building, Construction Industry and Real Estate Services NSDC Study on mapping of human resource skill gaps in India till 2022

 

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