ASTM Cannabis Committee seeds standard for lime-based hempcrete

Sources: ASTM International, West Conshohocken, Pa.; CP staff

ASTM Committee D37 on Cannabis is eyeing development of standards to cover the use of hempcrete, a bio-composite mixture of hemp hurds and lime, in construction and insulation. Work on the proposed WK70549 and WK70550 standards entails, respectively: review of current ASTM International fire resistance and R-value measurement methods’ appropriateness for hempcrete, and establishing unbiased R-value and fire resistance properties for hempcrete insulation materials. 

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Coalition content with feds’ nod to Green Globes standard, alongside LEED

Source: American High-Performance Buildings Coalition (AHPBC), Washington, D.C.

Chemical and building materials interests issued a statement responding to the U.S. General Services Administration’s recommendation of the Green Building Initiative’s Green Globes 2010 and U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED) 2009 as third party certification systems:

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Construction giant Skanska rebukes LEED critics

Sources: Skanska USA, New York; CP staff

Major heavy civil and general contractor Skanska USA resigned its U.S. Chamber of Commerce membership to protest the group’s support of the American High-Performance Building Coalition (AHPBC), which is lobbying federal lawmakers to limit government projects to green building rating systems developed with consensus-based standards.

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