STRUCTURAL USE OF CUT-OFFS FROM CLT-PRODUCTION - THREE EXAMPLES THAT UTILIZE THE UNIQUE PROPERTIES

Production of CLT-panels typically results in 5-10% cut-offs due to window and door openings. CLTboards can be made by slicing these cut-offs and finger-jointing them. It is worthwhile from economic and climatic aspects to find applications for such boards as building products with long service life. It is preferred to find uses where the premium transverse properties are utilized. This paper present three novel ideas for re-use of cut-offs from CLT. (a) The re-use as REX laminations in CLT production is a smart concept that minimize waste in an economical way. (b) By using finger-jointed CLT-boards as horizontal rails in timber frame buildings, the problems with over-load and deformations in multi-storey houses are minimized. (c) The capacity of glulam beams to carry concentrated loads is greatly enhanced by integrating CLT-boards as laminations.