Table 2.

Top Barriers for Green building in US, UK and China

USA	UK	China
Cost premiums	Cost	Insufficient knowledge and expertise
Long payback periods	Low demand from clients	Lack of market demand
Maintaining current practices	Unavailability of sustainable materials and products	Lack of green building codes and regulations
Limited subcontractors’ knowledge and skills	Insufficient information and awareness	Low incentives
Cost of green products and materials	Inadequate expertise	Lack of databases and information