X-Lam panels in swimming-pool building - monitoring the environment and the performance

摘要

The cross-laminated timber panels (X-Lam panels) are produced for structural use in Service Classes 1 and 2 conditions, in accordance with what is established in Eurocode 5 [6]. Timber boards are glued together on orthogonal layers, allowing the panel to perform two important characteristics: good dimensional stability and two-way loading direction. The influence of wood moisture content on the feasibility of cross-laminated timber is described in this paper regarding the dimensional stability of the panels when applied in high moisture locations. Several European Technical Approvals, state the low importance of the dimensional variations with moisture content of this type of panel, but some reference values can be found in other technical documents. The French Avis Technique [8][9][10] provides the value of 0.01 mm/m for in-plane deformation (per percentage of timber moisture variation) and the TRADA Wood Information Sheet, WIS 2/3-62 [18], refers to the maximum value of 0.02mm/m for the same conditions.