This guidance is primarily aimed at public procurers involved in a range of contracting agreements related to building materials and products. This includes the purchase of building materials for construction works, but may also extend to material extraction, manufacturing, building, retrofit, refurbishment, design, interior fit out, and end-of-life demolition or deconstruction processes. 

In 2010 the worldwide building sector was responsible for 24% of the total GHG emissions deriving from fossil fuel combustion, second only to the industrial sector; but, if the embodied energy of construction materials is included, the share is far higher and the building sector becomes the prime CHG emitter. Thus,building design and construction have a significant effect on the chances of meeting the 2 °C target (keeping global temperature increase to 2 °C ). 

TYPHABOARD is made from typha (cattail), a plant that grows quickly and easily in all kinds of marshes throughout the world.The material provides both structural and insulation properties. It can be used in timber frame structures, or 100% typha strutures. It can also be used as insulation materials when retrofitting existing buildings.

From the Healthy Materials Lab, five case studies profiling affordable housing projects utilising healthier materials.

The Inventory of Carbon and Energy (also know as the ICE database) is an embodied carbon database for building materials which is available for free on this page. It contains data for over 200 materials, broken down into over 30 main material categories. The first version was released in 2005 and it has been updated at periodic intervals. 

The Construction Material Pyramid from CINARK at the Royal Danish Academy makes it possible to compare, for example, CO2 footprints between different categories of materials or between material types within the same category. It also makes it possible to view different kinds of environmental impacts across the different materials. It thus offers a tangible, interactive calculation tool and at the same time opens up a dialogue about more detailed studies of the materials’ position in the pyramid and later their place in the project design.