#wood #concrete #lighterstructure #smaller #foundation 90% #lower #carbondioxideemissions #sustainable #construction http://t.co/6B3y4mnI8E
#wood #concrete #lighterstructure #smaller #foundation 90% #lower #carbondioxideemissions #sustainable #construction http://t.co/6B3y4mnI8E
#wood #concrete #lighterstructure #smaller #foundation 90% #lower #carbondioxideemissions #sustainable #construction http://t.co/6B3y4mnI8E