Glued laminated timber - average glue mix (glued laminated timber production - average glue mix)

Emissions generated by the activity within the product supply chain as described in ecoinvent v3.10. The product glued laminated timber also called glulam is a type of structural engineered wood product comprising a number of layers of dimensional sawn timber bonded together with durable moisture-resistant structural adhesives. Glulam is distinct from Cross Laminated Timber (CLT) for which layers of sawn timber are glued in perpendicular orientation to adjacent layers. By laminating a number of smaller pieces of sawn timber a single large strong structural member is manufactured from smaller pieces. These structural members are used as vertical columns or horizontal beams (standard forms) as well as curved arched shapes (special forms). Glulam is readily produced in curved shapes and is available in a range of species and appearance characteristics to meet varied end-use requirements. Connections are usually made with bolts or plain steel dowels and steel plates. The high strength and stiffness of laminated timbers enable glulam beams and arches to span large distances without intermediate columns allowing more design flexibility than with traditional timber construction. The size is limited only by transportation and handling constraints. The cut-off classification is allocatable product. The activity type is ordinary transforming activity. The reference product amount is 1.