It is typically used for headers, beams, rimboard, and edgeforming material. Fire performance of connections in laminated veneer lumber i acknowledgements first of all i would like to thank my supervisors, professor andy buchanan and associate professor peter moss, for their enthusiasm for the topic, ideas, support, and guidance. Laminated veneer lumber lvl designing buildings wiki share your construction industry knowledge. This epd was developed in compliance with iso 14025 and iso 21930 and has been verified under ul. Kerto lvl is incredibly strong and dimensionally stable. Kerto lvl delivers its high strength from the homogeneous bonded structure. Evergreen engineering grew out of the wood products industries in the northwest united. Structural composite lumber scl apa the engineered. 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. A comparative study on the mechanical properties of laminated veneer lumber lvl produced from blending various wood veneers. Everedgelaminated veneer lumber lvl with watershed stability overlay wso synonyms andor grades. With hychord, designers can confidently exploit the excellent strength properties for minimum sections, and then utilise the predicted deflection performance to apply just the right amount of camber to ensure flat ceilings. Lsl, simply defined, is an engineered wood product used primarily as an alternative to traditional lumber and other engineered wood products like laminated veneer lumber lvl and glulam.
Boise cascade manufactures and markets engineered wood products ewp. Laminated veneer lumber lvl is defi ned as a woodbased composite consisting of veneers, glued together predominantly parallel to the grain in adjacent layers which may have crossband veneers. Health product declaration hpd redbuilt redlam lvl. Flexural properties of forest service laminated veneer. Andrea frangi for giving his opinion on the research and. Laminated products with a slightly aromatic resinous and natural wood color. 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. Pdf evaluation of mechanical properties of reinforced. Th w d p d t c ilthe woodproducts council i r i t d p id. These building products provide improved structural characteristics that use wood fiber more efficiently. 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. Boise cascade owns and operates the worlds two largest laminated veneer lumber lvl and ijoist manufacturing plants in alexandria, louisiana and white city, oregon.
We supply our own boise cascade manufactured versalam laminated veneer beams and headers. Lvl properties significantly exceed those of solid wood, glulam and highgrade timber. Murphy lvl is available with thicknesses up to 7 inches, widths up to 24 inches, and lengths up to 80 feet. Laminated veneer lumber lvl is a highstrength engineered wood product used primarily for structural applications. Laminated veneer lumber is costeffective, sustainable, strong, lightweight, uniform and has high structural reliability as compared to milled lumber.
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. In europe, the market of engineered lumber products still grows faster than construction, whereas in north america they have become mature products exposed to market cycles. Our products are used across residential, commercial, industrial, formwork and scaffolding applications. Three types of reinforcement materials, a carbon fiberreinforced polymer cfrp sheet, a glass fiberreinforced polymer gfrp mesh, and a composite of the cfrp sheet and gfrp mesh, were used to reinforce poplar laminated veneer lumber lvl, and the multistep hotpressing method was also applied. Identification manufacturer supplier the product is used for building. The complex technological process results in a homogenous material with unique performance. Woodbased composites are used for a number of structural and nonstructural applications. The strength is in the engineering lp solidstart lvl is made from ultrasonically and visually graded. Steico lvl laminated veneer lumber engineered by nature. Laminated veneer lumber lvl is a structural timber product which has been widely used for a wide range of structural and nonstructural applications during the last decades. Vertically laminated veneer lumber lvl panels engineered wood. 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. Laminated veneer lumber specification by bureau of indian standards.
When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. Introduction fire is one of the most unpredictable and dangerous accidents that may occur in our environment, especially in residential buildings. Fire performance of connections in laminated veneer lumber. Evironmental product declaration of north american. Laminated veneer lumber lvl is a structural timber product which has been widely used for a wide range of structural and nonstructural applications during.
Safety data sheet sds everedge laminated veneer lumber. Versalam laminated veneer beams and headers eliminate twisting, shrinking and splitting, and deliver flatter, quieter floors. At this extremely low level of emission approximately 50% of the formaldehyde measured has been emitted naturally by the wood itself. Laminated veneer lumber lvl bulletin puutuoteteollisuus. 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. Made in a factory under controlled specifications, it is stronger, straighter, and. It is typically used for headers, beams, rim board, and edgeforming material.
Flexural properties of forest service laminated veneer lumber. 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. Declared product north american laminated veneer lumber lvl reference pcr fp innovations. It is manufactured by bonding rotary peeled or wood veneers that have been sliced thinly under heat and pressure. They are a dense, highstrength laminated veneer lumber made of wood and glue, which are available in many different sizes. Lvl lumber laminated veneer lumber ultralam official. Safety data sheet according to 29cfr19101200 and ghs rev. 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. Charring, fire performance, ignition, laminated veneer lumber, lvl 1.
Structural composite lumber scl apa the engineered wood. Sized to match our bci joists and other elements of the simple framing system, versa. Laminated veneer lumber environmental product declaration the american wood council awc and canadian wood council cwc are pleased to present this environmental product declaration epd for north american laminated veneer lumber lvl. Laminated veneer lumber an overview sciencedirect topics. Gilbert, b tony dakin, a and adam faircloth a rotary veneers from spotted gum corymbia citriodora and white cypress pine logs callitris glaucophylla recovered from the native forest in queensland, as. Conference paper pdf available february 2017 with 253 reads. The wood veneer from monopetalanthus species was heated under different temperatures 120 c, 160 c, 200 c, and 240 c and then laminated as the surface of laminated veneer lumber lvl. Fire development and behaviour and the effects of fire on. Laminated veneer lumber lvl designing buildings wiki. The wood component of these products may consist of aspen, douglas fir, western hemlock, southern yellow pine or yellow poplar. Kerto lvl is produced from 3 mm thick, rotarypeeled softwood.
Rotary peeled wood veneers, usually pine or fir, are dried then laminated together with glue and resins under heat and high pressure to. Lvl laminated veneer lumber is a technologically enhanced and improved high strength structural wood based material. 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 is an engineered wood product that uses multiple layers of thin wood assembled with adhesives.
Problems that naturally occur as sawn lumber dries twisting, splitting, checking, crowning and warping are greatly reduced. 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. Redlam laminated veneer lumber specification information. Vertically laminated veneer lumber lvl panels are made from peeler logs in the same production lines as lvl beams. The wood grain of veneers or strands is primarily oriented in the same.
Lvl offers several advantages over typical milled lumber. West fraser expanded further in 2007 when the company acquired. The purpose of this research was to produce material data sets for future modelling of laminated veneer lumber lvl to aid in a more robust numerical modelling effort of connection systems. 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. Problems that naturally occur as sawn lumber dries twisting, splitting, checking, crowning and warping.
Due to its composite nature, lvl is much less likely to warp, twist, or shrink. Laminated veneer lumber lvl beams eliminate twisting, shrinking and splitting and deliver flatter, quieter floors and structures. Lvl products are often specified where a certain span, strength andor stiffness is required. Lvl can be produced with higher yields, in a greater range of dimensions and shapes, and with less time and labor than. Manufactured in marsden point, new zealand, futurebuild laminated veneer lumber lvl is available in a variety of sizes and lengths. Strength modelling of laminated veneer lumber lvl beams. Evironmental product declaration of north american softwood. It is comparable in strength to solid timber, concrete and steel and is manufactured by bonding together rotary peeled or sliced thing wood veneers under head and pressure note. 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. Pdf laminated veneer lumber lvl is recently available in indonesian markets. 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. Engineered to precise design values and with a very high strengthtoweight ratio, lvl panels are suitable for structural wall, floor and roof applications.
Laminated veneer lumber lvl is stronger and more stable with a higher strengthtoweight ratio than conventional solid sawn lumber. Lp solidstart laminated veneer lumber lvl is a vast improvement over traditional lumber. A comparative study on the mechanical properties of. Installing lvl beams during a residential remodel laminated. Laminated veneer lumber lvl is a highstrength enineered wood product usded primarily for structural appliances. Multiple pieces typically used in pairs can be fastened together to obtain greater thicknesses resulting in greater strength to carrysupport heavier loads. Made in a factory under controlled specifications, it is stronger, straighter, and more uniform. The watershed stability overlay wso product has a clear thin resin paper layer adhered to the surface. Top 5 laminated veneer lumber lvl brands the spruce. Laminated veneer lumber 103 pressure treated glulam beam 3 actual thickness. A comparative study on the mechanical properties of laminated. Formaldehyde emissions from plywood and laminated veneer lumber.
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