1. United Nations Framework Convention on Climate Change UNFCCC (2016). Adoption of the Paris Agreement- Proposal by the President (Draft decision -/CP.21), Conference of the Parties, Twenty-first session Paris, 30 November to 11 December 2015. Available from https://unfccc.int/resource/docs/2015/cop21/eng/l09.pdf [Accessed on 02 May 2018]
2. European commission (2018). https://ec.europa.eu/energy/en/topics/energy-efficiency/buildings [accessed 03 May 2018]
3. HM Government. 2010. Conservation of fuel and power: Approved Document L. Available at: https://www.gov.uk/government/publications/conservation-of-fuel-and-power-approved-document-l
4. Technical issues that affect the use of retrofit panel thermal shutters in commercial buildings;Hashemi;Building Services Engineering Research and Technology,2014
5. H. Sinnesbichler, H. Erhorn, A. Nimtsch, E. Lindauer, G. Haag, Further development and evaluation of technologies and of evaluation methods for improving the overall energy efficiency of buildings (EnEff06), IBP Report WTB-02-2007, Available at: https://www.ibp.fraunhofer.de/content/dam/ibp/en/documents/oeVB_eng_2_tcm1021-30994.pdf [Accessed on 02 May 2018]