weathering properties of wood deck

  • Title, Reducing the surface checking of deck-boards exposed to natural weathering: effects of wood species and surface profiling ... I hypothesize that both species and the geometry of surface profiles will significantly influence checking of deck-boards exposed to natural weathering. ...... 2.4.11 wood modification wood modification changes the properties of wood cell walls and tissues, and improves wood's decay resistance without the use of biocides (Hill 2006).


  • Based on these, a meta-analysis using 44 empirically generated data from 12 papers in the field of accelerated weathering, thermohygric conditioning and fungal decay of WPCs was conducted. It was found that high .... EN 15534-4: 2014, Composites made from cellulose-based materials and thermoplastics (usually called wood-polymer composites (WPC) or natural fibre composites (NFC)) Part 4: Specifications for decking profiles and tiles. EN 15534-5: 2014& ...


  • The study shows that the pigments and/or mineral fillers can be used to improve the weathering properties of WPCs. The effect of pigments was found to vary with the type of pigment and the method of weathering. The black pigment, an ...... 2011). In addition to material durability, also aesthetic requirements are set to decking surfaces. WPC can meet these requirements more reliably than wood products. (Smith & Wolcott 2006). Compared to traditional wood products,& ...


  • In addition, it must be considered that the weathering conditions in 45° south exposure are accelerated relative to vertically installed elements, e.g. claddings, and decelerated relative to horizontal surfaces, e.g. decking (Evans 1996). This study is aimed on the& ...


  • Contents. Factors Affecting Finish Performance 16 2. wood Surface properties 16 2. wood Products 16 8. weathering 16 11. Decay and Insects 16 13. Control of Water and Water Vapor 16 13. Compliance of VOC Finishes with Pollution. Regulations 16 15. Exterior wood Finishes 16 16. Weathered wood as Natural Finish 16 16. Penetrating wood Finishes 16 16. Film-Forming Finishes 16 21. Application of Finishes, Special Uses 16 24. Porches, decks, deck Railings, and& ...


  • weathering of wood results in chemical, physical and anatomical changes. Loss of lightness, discoloration, cracking, checking and roughening of surfaces are some undesirable characteristics of wood after indoor or outdoor exposure. All these damages on the wood surface are related to chemical changes in the hemicelluloses, cellulose and lignin structures (Hon 2001). Lignin is the most susceptible component to weathering degradation (Feist and Hon 1984). Furthermore, changes& ...


  • Although both belong to the pine family, spruce and cedar significantly differ in longevity and visual weathering characteristics. Lumberyards and home ... readily accept both paint and stain. If properly applied, paint and stain can increase the woods' resistance to deterioration. ... However, cedar's exceptional resistance to decay leads builders to use cedar for particularly exposed projects, such as fence boards and finished deck surfaces. Lumberyards and home& ...


  • During the weathering process wood can appear unsightly as the material can blacken due to moisture getting into the fibres and pulling out tannins and extractives. This can lead to ... This issue is perpetuated by the common myth that cladding or decking can be left to weather naturally with no concern for aftercare or maintenance. The truth is that ... Sioo crystallises deep within the wood structure, reinforcing the natural characteristics, providing a durable barrier against the elements.


  • Mechanical properties of wood-Based. Composite Materials. Zhiyong Cai, Supervisory Research Materials Engineer. Robert J. Ross, Supervisory Research General Engineer. 12 1. Contents. Elastic properties 12 2. Modulus of Elasticity 12 2. Shear Modulus 12 3. Strength properties 12 3. Panel Products 12 3. Plywood 12 3. Oriented Strandboard (OSB) 12 4. Particleboard 12 4. Hardboard 12 4. Medium-Density Fiberboard 12 5. Timber Elements/Structural Composite Lumber& ...


  • Is Modwood moisture resistant? Modwood has excellent moisture resistance, however it should be noted that Modwood is not designed to “live in moisture” - this will eventually cause swelling, and affect physical properties. .... Due to its high wood-fibre base, Modwood products when fully weathered, will accept some oil based and not water based decking products. You can stain Modwood by using an oil based stain such as deck Protect Composite Refresh to rejuvenate board& ...


  • In this work, a three-year natural weathering test of furfurylated wood decks was carried out in Greece. The wood decks (without any protection or finishing) were exposed outdoors for 36 months in order to evaluate physical and structural properties such as colour, staining, distortions, surface cracking and end-splitting. Aim of the work. Page 3. In the furfurylation process, the bio-based chemical, furfuryl alcohol is impregnated into the wood cell wall structure, and& ...


  • In previous studies, we investigated the effect of extraction and delignification on the surface color, chemistry, and thermal properties of wood flour (WF) [1,2]. In a subsequent study, we reported on moisture and mechanical properties of WPCs that were made of extracted and delignified WF [3]. Currently, about two-thirds of WPCs are used in outdoor construction as materials for decking, siding, and roof tiles [4]. Outdoor uses can lead to deterioration of WPCs by& ...


  • Before you choose a finish, it's important to understand the properties of the substrate you plan to coat. woods like ipe that are naturally resistant to bugs and rot don't typically come treated with a wood preservative. Some manufacturers, like Thompson's, discourage the use of certain products on ipe and other hardwoods like it, because the finishes aren't formulated to penetrate such dense wood. Sealing pressure-treated decking is another matter entirely. According& ...


  • Exterior wood-fiber composites like decks and rails haven't lived up to some of the early claims of long, maintenance-free life. ... This dime-sized mushroom growing on a wood composite deck is one of many unwelcome surprises weathering can cause in wood-plastic composites. .... To help in wood-plastic product development, M-Base Engineering Software in Germany has created the first database of properties of natural fibers and plastic compounds containing these fibers.


  • some physical and structural properties of furfurylated wood decks, such as colour, staining, distortion, sur- face cracking and end-splitting, after a 36-month out- door weathering test in a typical southern Europe cli- matic area like Greece. 1 INTRODUCTION. 1. UVOD. During the recent years, wood modification has attracted increasing interest as an alternative method for improving the durability of wood without the use of toxic substances. According to Hill (2006): “the modified wood& ...


  • Accoya is the world's leading high technology wood. It is produced from sustainably sourced, fast growing softwood using a non-toxic modi- fication process from the surface to the core. The result is a durable, stable and beautiful material with the performance characteristics of the most durable tropical hardwoods but with industry- leading environmental credentials. A new world of sustainable and low maintenance products including windows, doors, decking and cladding is& ...


  • The wood has excellent weathering characteristics. SEASONING, is rated as easy to air-season with a slight tendency to check and with moderate warping; drying was uniformly rapid. USES, Outdoor decking, flooring, cogs and shafts, heavy construction, barge and dock fenders, railroad crossties, pulp mill equipment, tool handles, bearings, turnery. A substitute for lignum vitae. COMMENTS, The cumaru tree is cultivated in many areas for the tonka beans used as a flavoring,& ...