New Standard to Help in Design of Barriers in Building Construction

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A new ASTM International standard will describe in detail the design and specification process for water vapor transmission properties of water-resistive barriers and air barriers in building construction. ASTM’s performance of buildings committee developed the new standard, which will soon be published as E3127. ASTM International member Danko Davidovic says that the new standard will explain how WRB/AB systems perform in different wall and roof assemblies in various climates when the moisture migration by water vapor diffusion is taken into consideration. The standard reflects the best building science practices with regard to how water vapor transmission properties of WRB/AB impact … Read more

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Additive Manufacturing Committee Seeks Participation to Develop Construction Standard

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Interested parties are invited to participate in the development of a proposed ASTM International standard that will address quality requirements for additive manufacturing in building and construction. The proposed standard will have a specific focus on structural and infrastructure elements. ASTM International’s additive manufacturing technologies committee is developing the proposed standard. ASTM International member Stephan Mansour says that the range of material covered by the proposed standard will include cement, compound and adobe-based. It will not address metal and/or polymer-based materials. “With all the environmental, efficiency and productivity benefits of construction AM, the lack of international standards is hindering adoption … Read more

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