Holcim's Durabric(s) are made without firing which means much less burning of fuels or woods for heating. These bricks are saving 14 trees for every house constructed using Durabric. Watch this video & visit the website for more. DURABRIC also offers better resistance to water, higher strength blocks, lower carbon emissions and a superior aesthetic finish; all using local materials. Using of local materials is more good for environment & local economy! https://www.youtube.com/watch?v=GtN_HqCk7Ro Read: https://www.durabric.com/