Laminated veneer lumber engineered wood structurecraft. Flexural properties of laminated veneer lumber manufactured from ultrasonically rated red maple veneer. Laminated veneer lumber an overview sciencedirect topics. Laminated veneer lumber lvl beams and columns are made of layers from peeler logs glued together, and are very similar to plywood except there are no crosslayers, all layers are oriented with grain in the same direction. Due to its composite nature, lvl is much less likely to warp, twist, or shrink. As a reliable straight and durable product, jframe can be used in a wide range of applications including residential and commercial framing and truss systems. Rotary peeled wood veneers, usually pine or fir, are dried then laminated together with glue and resins under heat and high pressure to. Performance test of laminated veneer lumber lvl from rubber wood for different physical and mechanical properties. The individual layers in lvl, known as veneers, are obtained by peeling larger softwood pieces to then glued together with the grain in each layer oriented along the length of the lvl product. Laminated veneer lumber lvl is a layered composite of wood veneers and adhesive.
Apr 05, 2020 the lumber can also be used in the construction of weight bearing walls in some residential and commercial building designs. Formaldehyde emissions from plywood and laminated veneer. Laminated veneer lumber lvl skin contact wash gently and thoroughly with lukewarm, gently flowing water and mild soap for 5 minutes. We supply our own boise cascade manufactured versalam laminated veneer beams and headers. Flexural properties of forest service laminated veneer lumber.
When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. They are manufactured by separating timber into veneers and using a structural adhesive to bond them together. It offers several advantages over typical milled lumber. A primary feature of lvl is to disperse or remove strengthreducing characteristics of wood by lessening natural defects such as knots, slope of grain and splits that are inherent in sawn. This type of lumber product is generally considered to be strong and suitable for use in a wide range of building projects, as well as in the construction of some types of furniture.
Laminated veneer lumber woodbased panels technology. Oct 27, 2016 like many timber suppliers in brisbane, we carry a product called laminated veneer lumber or lvl. Pdf laminated veneer lumber from rowan sorbus aucuparia. Lvl is made from rotary peeled veneers laid up with parallel grain orientation. Parallel laminated sitka spruce veneer was studied in the 1940s 30 for constructing highstrength wood aircraft members. Boise cascade owns and operates the worlds two largest laminated veneer lumber lvl and ijoist manufacturing plants in alexandria, louisiana and white city, oregon. Kerto lvl delivers its high strength from the homogeneous bonded structure. Laminated veneer lumber lvl is a highstrength engineered wood product used primarily for structural applications.
Laminated veneer lumber lvl is an engineered wood product consisting of multiple thin layers of wood held together with a synthetic adhesive. Parallellaminated sitka spruce veneer was studied in the 1940s 30 for constructing highstrength wood aircraft members. Structural composite lumber scl, which includes laminated veneer lumber lvl, parallel strand lumber psl, laminated strand lumber lsl and oriented strand lumber osl, is a family of engineered wood products created by layering dried and graded wood veneers, strands or flakes with moisture resistant adhesive into blocks of material known as. Lp solidstart laminated veneer lumber product overview duration.
Murphy laminated veneer lumber lvl is made with wood veneers laminated with grain parallel to the length of the member in accordance with the inplant manufacturing standard approved by apa. Fine wood dust may be generated with the chips are ground or further machined. These building products provide improved structural characteristics that use wood fiber more efficiently. Laminated veneer lumber from rowan sorbus aucuparia lipsky article pdf available in african journal of agricultural research 410. Laminated veneer lumber lvl is an engineered wood material with defined and reliable strength and stiffness properties. Safety data sheet sds everedge laminated veneer lumber. Lvl laminated veneer lumber for various applications. Field notching and drilling of laminated veneer lumber ews g535a june 2010 introduction laminated veneer lumber lvl is an engineered wood product manufactured from specially selected veneers of varying strength and stiffness properties. It is typically used for headers, beams, rim board, and edgeforming material. Hence it can be considered as a veneer based product. This laminated veneer lumber is a product engineered with wood made up of multiple layer of thin wood assembles from adhesives. Like many timber suppliers in brisbane, we carry a product called laminated veneer lumber or lvl. The watershed stability overlay wso product has a clear thin resin paper layer adhered to the surface.
Kerto lvl beams, headers, rafters and columns for floor and roof applications. Sized to match our bci joists and other elements of the simple framing system, versa. Process flow diagram for parallel strand lumber manufacturing. Lvl beams are available in smaller sizes that can be easily hauled to a location by hand, and screwed together to form a larger member that will meet requirements to carry a load. As lvls are a manufactured product, it can be made to very large dimensions. Laminated veneer lumber lvl is a modern engineered wood composite product ewp made from rotary peeled veneers laid up with parallel grain orientation.
These laminated veneer lumber has its application basically for headers, beams, edge forming material. Laminated veneer lumber lvl metsa wood kerto lvl sbeam. Laminated veneer lumber lvl is a general description for an assembly of veneers laminated with an adhesive, in which the grain direction of the outer. Laminated veneer lumber lvl beams eliminate twisting, shrinking and splitting and deliver flatter, quieter floors and structures.
Charring, fire performance, ignition, laminated veneer lumber, lvl 1. Lvl is a versatile engineered product and combines the best of modern process technology with the aesthetic beauty of natural wood. Conference paper pdf available february 2017 with 253 reads. Known in the industry as lvl, laminated veneer lumber is a type of wood product that is created by fusing or binding several layers of thin wood with the use of some type of adhesive compound. Laminated veneer lumber lvl is a type of highstrength engineered timber that can be used as an alternative to solid timber, concrete and steel for structural applications. Lvl can be produced with higher yields, in a greater range of dimensions and shapes, and with less time and labor than glued. Made in a factory under controlled specifications, it is stronger, straighter and more uniform. Illustraged in our photographs of lvl beams in use at a poughkeepsie ny project, our example. It is typically used for headers, beams, rimboard, and edgeforming material. The veneers are glued together using a durable structural adhesive and pressed to form long continuous sections panels with the grain running parallel. Jframe is a general purpose structural laminated veneer lumber lvl gauged framing timber manufactured by juken new zealand ltd jnl from 100% renewable radiata pine, plantation forest. Structural composite lumber scl apa the engineered. Laminated veneer lumber lvl is an engineered wood product that uses multiple layers of thin wood assembled with adhesives.
Laminated veneer lumber is an engineered wood product, developed in the 1960s, is produced by gluing together layers of wood veneers with the wood grains in parallel. Engineered wood products and an introduction to timber. Laminated veneer lumber lvl is a structural timber product which has been widely used for a wide range of structural and nonstructural applications during. Kerto lvl is produced from 3 mm thick, rotarypeeled softwood. Structural composite lumber scl apa the engineered wood. Laminated veneer lumber lvl is a general description for an assembly of veneers laminated with an adhesive, in which the grain direction of the outer veneers. Laminated veneer lumber lvl designing buildings wiki. Boise cascade manufactures and markets engineered wood products ewp. Test material the lvl used in these tests was manufactured in new zealand by carter holt harvey ltd using veneers 3 mm thick, glued into panels of up to 105 mm thickness. In some cases cross grain veneers are incorporated to improve dimensional stability.
Boises laminated veneer lumber lvl is a product that uses multiple layers of thin wood assembled with adhesives. Pdf laminated veneer lumber lvl is recently available in indonesian markets. As an engineered wood product laminated veneer lumber can be manufactured to meet customer design, strength and performance specifications. Laminated veneer lumber lvl created by global safety management, 184355161.
Sized to match our bci joists and other elements of the simple framing system, versalam offers quick assembly and is precision cut into more than 18 standard sizes. Top 5 laminated veneer lumber lvl brands the spruce. Plywood and laminated veneer lumber woodsolutions campus. Browse companies that make laminated veneer lumber and view and download their free cad details, revit bim files, specifications and other content relating to laminated veneer lumber as well as other product information formated for. Metsa woods kerto lvl is a laminated veneer lumber product used in all types of construction projects, from new buildings to renovation and repair. Lvl products are often specified where a certain span, strength andor stiffness is required. Flexural properties of laminated veneer lumber manufactured from ultrasonically rated red maple veneer a pilot study xiping wang, research associate natural resources research institute university of minnesota, duluth, minnesota and forest products laboratory, madison, wisconsin robert j. Lvls laminated veneer lumber are manufactured from veneers that are rotary peeled, dried and laminated together under heat and pressure with an adhesive. Murphy laminated veneer lumber prl283 murphy engineered wood.
At this extremely low level of emission approximately 50% of the formaldehyde measured has been emitted naturally by the wood itself. It is manufactured by bonding rotary peeled or wood veneers that have been sliced thinly under heat and pressure. Identification manufacturer supplier the product is used for building. Laminated veneer lumber is used for headers, beams, rafters, and ijoist flanges.
It is manufactured by bonding rotary peeled or wood veneers that have been sliced thinly under heat and pressure first developed in the 1970s, lvl is used as a costeffective and sustainable building. It is much less likely than conventional lumber to warp, twist, bow, or shrink due to its composite nature. Laminated veneer lumber laminated veneer lumber lvl is a structural member manufactured by bonding together thin vertical softwood veneers with their grain parallel to the longitudinal axis of the section, under heat and pressure. The improved engineered wood products such as laminated veneer lumber and parallel strand lumber are being substituted for solidswan lumber which is used for construction. Laminated veneer lumber lvl, also known as parallel laminated veneer, is one of the most suitable products for the dispersion of natural defects of wood knots, etc. Laminated veneer lumber lvl like glulam, lvl uses continuous lamina lamina are sheets of veneer rather than lumber in glulam lamina thickness 1.
Made in a factory under controlled specifications, it is stronger, straighter, and. A limited number of free copies of this publication are available to the. Lp solidstart laminated strand lumber and laminated. Laminated veneer lumber lvl manufacturers in india. Introduction fire is one of the most unpredictable and dangerous accidents that may occur in our environment, especially in residential buildings. Murphy lvl is available with thicknesses up to 7 inches, widths up to 24 inches, and lengths up to 80 feet.
Flexural properties of forest service laminated veneer. Lvl offers several advantages over typical milled lumber. Kerto lvl is incredibly strong and dimensionally stable. Department of agriculture, forest service, forest products laboratory. Health product declaration hpd redbuilt redlam lvl. It is manufactured by using the best quality of raw material which is been sourced from categorized vendors. It is comparable in strength to solid timber, concrete and steel and is manufactured by bonding together rotary peeled or sliced thin wood veneers under heat and pressure. Fire development and behaviour and the effects of fire on. These are the wood product manufactured under high pressure and heat. Laminated veneer lumber 103 pressure treated glulam beam 3 actual thickness.
The wood component of these products may consist of aspen, douglas fir, western hemlock, southern yellow pine or yellow poplar. Laminated veneer lumber lvl designing buildings wiki share your construction industry knowledge. This gives lvl elements a very high strength in their spanning direction. Versalam laminated veneer beams and headers eliminate twisting, shrinking and splitting, and deliver flatter, quieter floors. Laminated veneer lumber our laminated veneer lumber lvl is manufactured from rotary peeled wood veneers that have been pregraded for stiffness and to achieve different structural properties. Steico lvl laminated veneer lumber engineered by nature. Installing lvl beams during a residential remodel laminated. Lvl is what is known as an engineered structural timber product.
In this study, laminated veneer lumbers were produced using different combinations of poplar. Laminated veneer lumber lvl is a manufactured wood product made of layers of veneers and adhesive and compressed under high pressure and heat. Chapter 11 engineered wood products production, trade. They are a dense, highstrength laminated veneer lumber made of wood and glue, which are available in many different sizes. Lvl is similar in appearance to plywood without cross bands. If skin irritation or a rash occurs, get medical adviceattention. Laminated veneer lumber is an industry standard in the framing of new buildings and is used to replace solid wood beams and joists in renovating existing buildings. Laminated products with a slightly aromatic resinous and natural wood color. Lp solidstart laminated strand lumber and laminated veneer lumber. Made in a factory under controlled specifications, it is stronger, straighter, and more uniform. Owing to the ability of the laminated veneer lumber to remain straight and uniform over time, using this product is often a good way to control the expenses associated with the building project. Redlam laminated veneer lumber specification information. Laminated veneer lumber lvl safety data sheet product identifier laminated veneer lumber lvl other means of identification lvl wood products west fraser lvl, secondary hwy 752, rocky mountain house, ab, t4t 1b3 recommended use sds no. Lvl is an engineered, highly predictable, uniform lumber product, because natural defects such as knots,slope of grain and splits have been dispersed throughout the veneer assembly or have been removed altogether.
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