Identification of Key Indicators for Sustainable Construction Materials

Table 2

Item loading and construct reliability.

Dimension	Code	Indicators	Number of items	Cronbach alpha
Environmental	EN1	Climate change	11	0.734
	EN2	Ozone layer depletion
	EN3	Human toxicity
	EN4	Ecotoxicity
	EN5	Acidification (acid deposit)
	EN6	Fossil fuel depletion
	EN7	Solid waste
	EN8	Mineral extraction
	EN9	Water extraction
	EN10	Freight transport
	EN11	Photochemical oxidation
Social	SO1	Cultural heritage preservation	8	0.875
	SO2	Aesthetic quality
	SO3	Choice and security of tenure
	SO4	Housing for all
	SO5	Empowerment and participation
	SO6	Adaptability
	SO7	Accessibility
	SO8	Thermal comfort
Economic	EC1	Initial cost	6	0.820
	EC2	Maintenance cost
	EC3	Operational cost
	EC4	Job creation
	EC5	Long-term savings
	EC6	Tourism