Urban Wood

Learn about the technical properties of Green, Air Dried and Kiln Dried woods and the relevant BS Standards. Elm: Mixtures of green, red, brown and gold blazing wych elm has a chatoyancy that is only surpassed by the finest koa. Red elm has a greyish white to light brown narrow sapwood, with heartwood that is reddish brown to dark brown in color. Heritage reclaimed wood species must be placed within the context of their historic lives. Viruses as biological control agents of the Dutch elm disease fungus Ophiostoma novo-ulmi.

This has been causing elm’s value as an indoor furniture wood to increase considerably over the past few years. Anyway, a suggestion has been made that wood from this tree be saved and made into something for the univeristy. A dense wood which polishes well and is often seen as decoration in a piece of furniture. This opens up the figure just a bit, making it slightly more hickory-like in gross (anatomical) appearance…It also experiences a little less volumetric shrinkage and is therefore a bit more stable…but it’s definitely an elm…and the interlocked grain makes all of them especially susceptible to distortion.elm wood characteristics

Elm is valued for its interlocking grain which gives it a high resistance to splitting, with significant uses in chair seats and coffins. DED is caused by a micro- fungus transmitted by two species of Scolytus elm-bark beetle which act as vectors The disease affects all species of elm native to North America and Europe, but many Asiatic species have evolved anti-fungal genes and are resistant. Different elm species contain varying concentrations of tannins and mucilageous carbohydrates in their inner bark Such species as the North American U. rubra synthesize sufficient mucilage for its inner bark to be taken as bland food in cases of diarrhea and dysentery.

Because of this Siberian Elm mostly grows where sawmills aren’t, which means it doesn’t get cut very often. The wood is generally straight grained, but sometimes with wavy or curly grain that produces an attractive and decorative figure. Hazel: Hazel was the most common wood used in Celtic traditions for wands and divining rods. The wood is resistant to weather and not susceptible to fungal or insect infestation.

If wood is not SPLIT, then it is most likely being sawn across the radial and/or tangential slope of grain… resulting in round billets like the one shown above (with tangential slope of grain). Balsa wood is harvested in Ecuador with over ninety percent of balsa trees being harvested from the jungles of South America. A general introduction, with a history of Dutch elm disease and proposals for re-landscaping in the aftermath of the pandemic. Large urban elm populations have been preserved in this way in many American cities (e.g. Minneapolis, Stennes, 2000).elm wood characteristics

Elm wood dries to a very hard material and it is very challenging to sand out imperfections of carving in the final material. Dutch elm disease has had an enormous social impact in these areas and huge efforts are being made in many cities to save their elms, fully supported by the public. The wood is moderately hard, stiff, and heavy.Working Properties: Sweetgum is above average in turning, boring, and steam bending.

Outside of these circles, the selection of wood depended largely on availability and suitability for the type of piece produced in terms of flexibility, durability, colour and grain. Mike has been elected as a Fellow in SWST, International Academy of Wood Science, and Institute of Materials, Minerals & Mining. In some export regions, such as Europe, sycamore refers to a specific maple” looking wood species, which can cause confusion. Although the fungus may also be present in all parts of an infected elm (except for the seeds), the highest risk for introduction of the disease comes from the bark because it also harbours the vectors of ulmi.

Apple wood promotes peace and harmony, magick of light and the divine, and promotes visions. A roughly 10-degree angle means that the wood only has about 40% of the strength of a bat with straight-grained wood. Because of its density, oak produces a small flame and very slow burn, it is best when seasoned for a minimum of two years as it is a wood that requires time to season well.

In this regard, the department’s primary teaching responsibility is to provide high quality educational opportunities necessary to adequately prepare students for professional and scientific careers in forest products and wood science. After drying Red Oak properly, it is known to be one of the most stable wood types holding its shape at large cuts or dimensions.

Elm is slow to get going and it may be necessary to use a better burning wood to start it off. With regards to hard wood flooring, oak is long lasting and provides a timeless look. The wood of red elm is fairly easy to work, it nails, screws and glues well, and can be sanded and stained to a good finish. General machinability is fair, although tension wood is frequently present and can cause a fuzzy surface when cut, if machine blades are not very sharp or set at correct angles, which in turn will require additional care when finishing. The wood is similar in general appearance to white oak, but with a slightly less pronounced figure due to the smaller rays.

Its name refers to the trees inner bark which is mucilaginous and has soothing properties and was once widely used as a sore throat remedy, a wound dressing and as a poultice. The wood has many desirable characteristics and is suitable for a wide variety of important uses. The wood of the main tree trunk is more flexible than that of the limbs and branches, and moist timber is more flexible than dry wood. Siberian Elm is the standout of the two, and commonly has small knots that can range from just a couple per board, to a birds-eye look, and even heavily burled.

This guide to reclaimed wood species is the starting point of a journey and exploration on the topic and should provide some pointers towards the relevance and relationship of native species and geographical placement of the building, given they were usually built on or close to the site of felled trees. Elms can become infected if an elm bark beetle is able to reach a tree, if a tree has been cut with shears that have been used to trim an infected tree, or if a tree comes in contact with a tree that is infected. The leaves of the slippery elm are larger than those of other elms, and retain an coarseness even in summer.

Cedar (Western Red) – Pacific Northwest: Western Red Cedar is a life giver to the local Native was used to provide shelter, create baskets for fishing and food gathering, medicinal purposes, and was even as clothing. Very similar properties to Brazilian, mostly orange to red in color, not quite as insane as real Brazilian but very similar working characteristics. My father and uncles do a lot of wood turning, and I am wondering how suitable it is for that. This wood finishes beautifully, both natural and stained, when burly is similar to walnut with the opalescent effect.

A confusing wood: the lightest wood in the world and the softest, yet classified as a hardwood! This belle époque lasted until the First World War , when as a consequence of hostilities, notably in Germany whence at least 40 cultivars originated, and of the outbreak at about the same time of the early strain of Dutch elm disease , Ophiostoma ulmi , the elm began its slide into horticultural decline. There are over 35 species of spruce trees throughout the world making it a popular and easily accessible wood for construction.