The process occurs in all timbers with some timbers causing dramatic damage to surrounding areas. Porta Cumaru has near zero leaching properties making it the ideal choice for a range of external decking and cladding applications even next to pools and spas. Modern Versions of Shiplap Timber Cladding, Achieving Consistent Colour Tones in Exterior Cladding, 10 reasons to choose Abodo's Vulcan Decking, 10 reasons to choose Abodo's Vulcan Cladding, De-risking Timber Cladding - A Tested Timber Cladding System vs Sum of Parts, Four Reasons to Use Feature Timber Ceilings, Making an Impact on Timber Windows and Doors. Timber posts should be placed on stirrups rather than in the ground where possible. Current dimensions are approx. Applications: Spotted gum is suitable for a range of building applications, such as posts and poles, framing, flooring, lining, decking and cladding. Spotted gum is an excellent choice for decking, its durability 2 so fine for outdoor use, its also one of the biggest plantation hardwoods in Australia so its logged sustainably. Other durable hardwoods you could consider include spotted gum, tallowwood and ironbark. Commonly used in exterior applications for outdoor furniture and decking. Due to the scale of the wood preserving industry, timber treated with the most common preservative, chromated copper arsenate (CCA), may form a significant source of metals in the aquatic environment. At Sculptform, we help busy architects realise their creative vision by offering versatile feature wall, ceiling and facade systems and expert advice. Abodo will not accept liability for over or under-ordered items. It is made from both spotted gum and ironbark. Another option is ironbark decking. It has smooth, mottled bark, lance-shaped to curved adult leaves, flower buds usually in groups of three, white flowers and urn-shaped or barrel-shaped fruit. ... starting to split/crack and tannin was leaching up quite a bit. The oil coating offers up something natural and unique. Plus, it’s naturally resistant to fire, making it the perfect decking option for people who live in fire-prone, bush or tree-dense areas. These leeches enter through a physical wound and lay eggs in the bladder. It’s also resistant to tannin leach. Appropriate commercially available species include Blackbutt, Spotted gum, Ironbark, Turpentine, Tallowwood, River red gum, Blue gum, Merbau, Treated pine and Cypress. Timber Posts. We recommend asking us about our additional staining service so we can supply the panels sealed to avoid any resin leaching out. We recommend asking us about our additional staining service so we can supply the panels sealed to avoid any resin leaching out. Returns policy. Timber Weatherboards and Dark Coloured Paint, Locally Grown Alternative to Lawsons Cypress and Lusitanica, Finish Quality: Timber Weatherboards vs Fibre Cement Weatherboards, Reducing Carbon Footprint – A Case Study: Cardrona Cabin, Five Rules for Choosing Truly Sustainable Timber, Renewable Energy in the Production of Wood Products, Biomass Growth and Carbon Sequestration - A Comparison of Tree Species. Merbau and Red Iron Bark…red to brown tone so Autumn Tone, New Bronzetone, Burnt Red and Chestnut will all look very similar on smooth wood. Porta Cumaru decking can be supplied with a factory applied pre-oiling and end-grain sealing treatment to ensure optimal colour fastness as your timber arrives ready to be installed. Recent studies have generated conflicting data regarding the bioaccumulation and toxicity of leachates from preservative-treated wood. It comes in yellow to red colour shades with moderate fire-resistant and conventional tannin leach. Kwila-look finish. 2.Spotted Gum Decking The biggest advantage of Spotted Gum Decking is that it can tolerate harsh weather climates, which makes it ideal for outdoor use. The two pieces of timber were left in water for three days to identify which leached the most extractives. However, there are specific characteristics you need to consider when building with this natural material. Hardwood versus Softwood Cladding: Which is Better? I have the underside of the decking boards ,joists and bearers painted in a Bristol russett Brown colour. This means tannin staining and bleed-through is less of a problem. Share. Spotted gum is dense and durable, has minimal tannin leach, and has a lifespan of over 40 years. We specialise in timber decking in Melbourne, Sydney, Brisbane, Adelaide, Perth and most parts of Australia. This becomes a problem when the timber is exposed to moisture. Have you ever noticed how discoloured river water is? What can you do to minimise this? We recommend using a 40 grit for stripping any previously applied coatings (be sure to try on an inconspicuous area first, to ensure you don’t damage the boards), working through to a 120 grit for the final sand before coats. When you spend $60+ per square metre on timber decking, it pays to maintain its condition.You have to consider a number of options: oiling, painting, or staining, but there are a number of reasons why oiling is the best way to go. Spotted gum One of the most commonly used Australian hardwoods, spotted gum, is loved by designers and architects the world over for its beautiful grain structure and attractive markings. The results demonstrated that Merbau had excessive Siberian Larch Cladding and Weatherboards in the New Zealand Context, Alternatives to Paint Finish Cedar Weatherboards, Creating Old School Dark Finishes for Natural Eco-timber, Timber Weatherboards - Dark Colours Can Be Done, Timber Batten Screening - For Shade and Privacy, Designing for Timber Cladding in Bushfire Attack Level (BAL) Zones - Australia, Low Maintenance Alternative to Kwila Decking Oil and Stain, Reinvention of Ancient Wood Protection Technology. This becomes a problem when the timber is exposed to moisture. Spotted Gum is Australia’s most harvested native hardwood, making it widely available. Spotted gum One of the most commonly used Australian hardwoods, spotted gum, is loved by designers and architects the world over for its beautiful grain structure and attractive markings. Take a look at these projects featuring Cumaru timber decking. For samples or more information, please get in touch. While it is excellent for machine work, Spotted Gum is also a good timber for carving and woodturning. The tone of the timber will alter over time with exposure to UV light and timber leaching may occur. The timber cell structure can be likened to millions of plastic straws bundled tightly together - so if a lot of water travels down the board it ‘flushes’ out the tannins in the wood causing the surrounding surfaces to become stained. It may be possible to reduce tannin leaching by washing the timber with deck washes and timber cleaners, although in most cases this reduces, rather than eliminates the tannin bleed. I love spotted gum and use it for 90 per cent of my projects. © Porta Mouldings Pty Ltd 2015. ... our Spotted Gum will gradually transform in the outdoors. Spotted Gum is well known for its overall reliability. ... Merbau ranges from orange brown to dark reddish brown with a high tannin content susceptible to leaching if left uncoated. spotted gum The attractive and durable hardwood is an ideal timber decking. Leaching occurs when timber releases its natural oils and resins when exposed to moisture. Rustic Gold and Sela Brown will all look similar on new smooth wood. Hard wearing and low maintenance, it can withstand our harsh and ever changing Australian climate. Eucalypt timbers such as Spotted Gum and Blackbutt to name a few, have a high tannin content. This can cause brown, black or rusty looking ‘bleed’ marks on nearby surfaces. Visit your local store for the widest range of building & hardware products. DeckWise® – Hidden Deck Fasteners & Accessories, Porta Cumaru – Hardwood Decking and Landscaping. For timber, leaching should be considered when choosing a species. Forest Reds and Jarrah…Red tones. The most effective solution for leaching, is to use a thermally modified timber such as our Vulcan timber. Architects and designers throughout the world value Spotted Gum timber for its back-sawn grain structure, attractive markings and vibrant colour palette. Thank you! A timber deck is a significant financial investment. It is also used for indoor and outdoor furniture, turnery, joinery and in the manufacture of veneer and plywood. Tallowwood, Ironbark, and Spotted Gum are all Class 1 timbers, with potential lifespans of 40+ years. Thermally Modified Ash - A Dying Resource? It is a long-lasting Australian hardwood that is a little darker than blackbutt and often has some intriguing colour variations. Weatherboard Options for Re-cladding Your Home, Feature Balustrades - An Architectural Trend, Natural Wood Cladding Textures and Finishes, Feature Walls – Bringing the Warmth of Timber Indoors, Bamboo Exterior Decking Versus Wood Decking. Weight: 1000 kg: Dimensions: 4.2 x 1.9 mm: Similar Products. Final order quantities are the buyer’s responsibility and should be checked and verified prior to order placement. Spotted Gum leaches less tannin. Boards were left outside for ten days in Fairfield, Victoria. The colour variations are also available from deep red to light golden brown- an aspect that can give versatility to your decor and itsts4 gum-veins add peculiarity to its appearance. Our house is red brick so it would look nicer against it too. It has natural oils and a lower tannin content, so it accepts oil and stain well and doesn’t experience bleed-through. ... Leaching of CCA from treated fencepost was evaluated by atomic absorption spectroscopy. Spotted gum is currently QLD’s largest harvested native hardwood by volume, meaning that spotted gum is widely available throughout Australia, with quantities also being exported internationally. This means that tannin rich timbers typically need a thorough cleaning prior to coating. Merbau vs blackbutt decking Merbau is a cheap and attractive timber, but is unsustainably sourced and prone to tannin leach. This means tannin bleed is highly unlikely, allowing home owners to rest easy. I prefer the latter due to sustainability concerns as well as appearance. Specifications . Of these the most stable dimension is 65mm ... All timbers leach tannins during rain. The tannin will leech out, causing staining on the timber, as well as any surrounding surfaces such as concrete, painted surfaces and tiles etc. Question: Hi, I am looking to replace a Harbour front timber deck around a pool. Tannins are natural extractives present in certain timbers, and this leaching can cause unsightly stains on surrounding materials, most notably light coloured ones. Resin Bleed - A Major Issue For Exterior Timbers, Reclaimed Timber Cladding - An Old Look Making a Comeback, The Verdict on Redwood Weatherboards in New Zealand, Timber Weatherboards Versus Fibre Cement Weatherboards, How to Minimise Timber Leaching and Tannin Bleed, Random Width, Random Thickness Timber Cladding, Timber Cladding: The New Alternative in Natural Wood Cladding [Video], Keep It Simple: The Low Cost Durable Timber Weatherboard. Leaching, sometimes known as tannin bleed, is when your timber cladding or timber decking bleeds or leaks onto the surrounding surfaces. What You Should Know About Chemically Treated Timber [Video], Timber Recessed Windows Becoming Increasingly Popular, Brazilian Modernist - An Australian Architectural Trend. ABN: 60 005 562 283 | Customer Service 1300 650 787. Leaching or tannin bleed, is when timber cladding or decking bleeds onto the surrounding surfaces. Leaching occurs when tannins (also known as polyphenols) from within the timber leach out of newly installed timber and have the potential to stain or discolour surrounding areas. As far as cupping goes in wider boards, stay away from the 19mm thick stuff and use 25mm or 32mm boards. The results demonstrated that Merbau had excessive staining, Spotted Gum had some staining and Cumaru had no visible marks. The tannin leaching can continue for months, particularly with timbers that have a high tannin content such as Kwila or Merbau. It can easily be painted or stained to further enhance the look of the timber. We recommend gently sanding the surface and applying a UV-stable exterior grade oil such as decking oil every six months. Spotted Gum, despite its strength and density is a great timber to work with as it has few imperfections and a good level of natural oils which allow easy machining. ... Leaching . My preference is for spotted gum which is what I have throughout my decks. Biodegraded untreated spotted-gum wood shows a decrease of more than 25% in polysaccharide content, with subsequent increases of extractives and Klason lignin, a typical brown-rot fungi attack. These included the Australian classics like Spotted Gum, Blackbutt & Ironbark that are sought after around the world for their strength, durability and style. It matches the stain I use fairly close in colour. As well as doing classic hardwood flooring, Market Timbers stock a wide variety of solid timber decking materials in different grades, sizes and made with a number of popular wood species such as Spotted Gum, Merbau, Jarrah and Grey or Red Ironbark. Stringybark: Durability is class 3. The 135mm spotted decking can be prone to cupping in some instances (ie drop or in middle) according to some, I have never seen it though. No Video Content. Spotted Gum…Light creamy to brown and greys. We conducted a leaching trial to compare common timber species for decking. Leaching of heavy metals into the soil after 6 yr is minimal for arsenic and much below Brazilian environmental law limits for chromium and copper. An Interview with a Green Architectural Designer: Craig Jarvis, Good Wood – The Importance of Good Forest Management. The tannin leaching can continue for months, particularly with timbers that have a high tannin content such as Kwila or Merbau. spotted gum The attractive and durable hardwood is an ideal timber decking. Spotted Gum is an extremely adaptable and naturally strong timber which makes it ideally suited to numerous applications. The tannin leach is susceptible. Leaching commonly occurs when certain timbers, for example Kwila (Merbau), Spotted Gum, Blackbutt, Balau and Tallowood are exposed to rain without a sealant or coating. My initial purchase of variable length Spotted Gum was somewhat shy of finishing the job, but I discovered that it was actually cheaper to buy the remainder from more-expensive Bunnings, as I could then get to choose the exact lengths needed to complete the job. Spotted gum is grown throughout the eastern part of Australia and in some parts of WA and SA in both native forests and plantations. Dimensions Returns & refunds We will gladly assist with returns and exchanges of this product in accordance with our returns and exchanges policy. Guiding Rules for Choosing Ethical Timber. Draffin Street Furniture use only kiln dried hardwood, with a moisture level at industry standards. Spotted gum: Durability is class 1. Care. We are building a new deck in our backyard (in Canberra) and have gotten quotes for two timbers – merbau and spotted gum. Tip.1 Before oiling your Spotted gum deck with protective coatings for the first time its generally a good idea to allow the timber to release its natural tannin. What Are Concealed Fix Vertical Shiplap Weatherboards? The most common solution is to use a ‘tannin remover’. Timber posts should be placed on stirrups rather than in the ground where possible. Image: Porta Bleed Trial. The water repellent qualities of oil finishes can be observed after rain when the water forms globules on the surface of the wood, rather than soaking in. I prefer the latter due to sustainability concerns as well as appearance. It matches the stain I use fairly close in colour. Spotted gum is known as a relatively tough and durable choice, with a Janka Hardness rating of 11. The tone of the timber will alter over time with exposure to UV light and timber leaching may occur. The timber of some decking woods, like Kwila, will leach a dark coloured stain when wet. It is in the highest category of durability class – Class 1. Spotted Gum (preservative-treatment) Tallowwood. Class 1 durability above ground -Termite Resistant – BAL 29 – medium Leaching – Janka hardness 9.1 Standard sizes are- 42×19, 65×19, 86×19, 130×19, 136×22, 140×35 and others available. Author links open overlay panel Washington Luiz Esteves Magalhães a b Bruno Dufau Mattos c André Luiz Missio d. Show more. Care. Leaching of heavy metals into the soil after 6 yr is minimal for arsenic and much below Brazilian environmental law limits for chromium and copper. Top to bottom: Day 1 to Day 10 results. We conducted a small experiment with Spotted Gum and our Vulcan. [Video], How to Tackle Mould and Stain on Wood [Video], Semi Transparent Exterior Wood Finishes: What To Use, Intumescent Fire Retardant Paint for Timber, Site Storage and Handling of Weatherboards, New Fire Retardant Regulations for External Cladding, Column Cladding – Create a Large Section Solid Wood Look, Abodo Secret Fix Cladding Installation Tips [Video], Creating an E2/VM1 Weather-tight Timber Cladding System for The Block TV Series, Tips for Weather-tight Cladding Systems and Installation, Camo – The Preferred Concealed Fix Decking Fastener, Decking Installation – Common Problems [Video]. Delivery is available, please call us on 1300 650 787. Leaching commonly occurs when certain timbers, for example Kwila (Merbau), Spotted Gum, Blackbutt, Balau and Tallowood are exposed to rain without a sealant or coating. Spotted Gum is sustainably sourced from plantations throughout Australia and is a very popular hardwood, which is durable, dense and has minimal tannin leach. If leaching is critical perhaps a species such as cypress pine would be a better choice since tannin staining is essentially a hardwood problem. However, above ground spotted gum is rated Class 1, the same as ironbark and tallowwood. Some species - like Merbau - have very dark tannin runs. Make sure you get the right information about our carefully crafted timber products by visiting your local Abodo website. Spotted Gum is extremely popular for flooring, decking and cladding. The timbers were exposed to the external elements for ten days. Spotted Gum. Spotted Gum. The Red List – Materials to Watch Out For! We supply New Zealand vineyards (such as Pernod Ricard Winemakers – Church Road) with NON-TREATED Class 1 (25 year in-ground durability – 40 years plus out of ground durability) hardwood timbers. There is not another timber in the world like Spotted Gum. Use the right chemical to clean the wood deck and remove these black spots. Is Aluminium Cladding More Sustainable Than Wood Cladding? The timbers were exposed to the external elements for ten days. Our house is red brick so it would look nicer against it too. Sizes of Decking Decking is commonly available as 65 x 19mm, 86 x 19mm and 135 x 19mm. Composite Cladding, Aluminium Cladding vs Timber Cladding – What is the Best Option? Spotted gum is grown throughout the eastern part of Australia and in some parts of WA and SA in both native forests and plantations. The majority of tannin bleed comes from the ends of a timber board, which is to do with the cell structure. The tannin will leech out, causing staining on the timber, as well as any surrounding surfaces such as concrete, painted surfaces and tiles etc. The Future of Wood - The Story of Abodo Eco Timber. What is Forest Certification – and Why is it Important? Spotted Gum 90x19. Low Tannin Content. Plus, it’s naturally resistant to fire, making it the perfect decking option for people who live in fire-prone, bush or tree-dense areas. Some species - like Merbau - have very dark tannin runs. How Often Do I Need To Re-coat Exterior Timber? My preference is for spotted gum which is what I have throughout my decks. Spotted Gum Species Data Sheet Common Name/s Spotted Gum, Lemon-scented Gum ... Leaching of Tannins Staining is likely on adjacent surfaces after exposure to the elements. The truth is that the secret to a good deck is. Spotted Gum Dressed all round Spotted Gum Decking. ... Merbau ranges from orange brown to dark reddish brown with a high tannin content susceptible to leaching if left uncoated. It accepts oil and stain well, and has a lower tannin content that most other eucalyptus species. good luck jimj Bamboo – Really the Sustainable Timber Choice? 1. Moreover, extractives and the acid insoluble lignin were quantified. Merbau vs blackbutt decking Merbau is a cheap and attractive timber, but is unsustainably sourced and prone to tannin leach. Vulcan timber has been thermally modified, with almost all of the tannin being removed during this process. Answer: Leaching of tannin commonly occurs if merbau is exposed to rain without a coating, or with a coating that allows moisture to penetrate. I like the natural variation of spotted gum and have heard that it is more durable too. After 12 months it looked awful and after 18 months I gave up on the test as a joke and threw it out. These timbers are milled from heartwood (not sapwood) and are a mix of Tallowwood, Spotted Gum and Iron Bark. Spotted Gum is classed as a dense ground-contact hardwood that will stand up to the elements. A Degree of Fire-Resistance. Tallowwood, Ironbark, and Spotted Gum are all Class 1 timbers, with potential lifespans of 40+ years. It can be painted, stained or polished. Home / Projects / What you need to know about timber decking & leaching. Copy Link to Post. They will probably leach less than merbau, but some staining is still likely as most hardwoods have some tannin content. Red Alert: 10 Ways to Get Bushfire-Ready Keeping your deck clean and pristine will not only make it more appealing, cleaning the wood will help it last longer and protect it from harmful substances. Tannin stain is not only unsightly, but can it can block the cell structure of the wood preventing it from absorbing timber coatings evenly, in some cases giving an overall dull and patchy look. Porta are still operating, however as part of our CovidSafe plan we have a variety of safety measures in place. Oil - Litres (second coat to front face installed): Oil - Litres (one coat all sides + two coats face): Note: The figures given here include 10% wastage and are approximate only. Spotted gum is currently QLD’s largest harvested native hardwood by volume, meaning that spotted gum is widely available throughout Australia, with quantities also being exported internationally. Spotted Gum (preservative-treatment) Tallowwood. Architects and designers throughout the world value Spotted Gum timber for its back-sawn grain structure, attractive markings and vibrant colour palette. However, spotted gum is … Appropriate commercially available species include Blackbutt, Spotted gum, Ironbark, Turpentine, Tallowwood, River red gum, Blue gum, Merbau, Treated pine and Cypress. How Sustainable are Australian Hardwoods? ... our Spotted Gum will gradually transform in the outdoors. Shades of Grey - The Low Maintenance Finish for Timber Cladding. Spotted Gum is a fairly hard timber, so anything between 40-120 grit will work. We recommend gently sanding the surface and applying a UV-stable exterior grade oil such as decking oil every six months. Like. As per SDC, when selecting timber for external applications, it is particularly important to consider leaching. Sat: 9.00am - 4.00pm. Leaching commonly occurs when certain timbers, for example Kwila (Merbau), Spotted Gum, Blackbutt, Balau and Tallowood are exposed to rain without a sealant or coating. Commonly used in exterior applications for outdoor furniture and decking. Blackbutt has natural features like Gum Veins and pin holes so when choosing Blackbutt you need to expect some visible natural features. دریافت مقاله با ترجمه فارسی sciencedirect : Field testing of CCA-treated Brazilian spotted gum دانلود رایگان مقاله The hatched eggs would be then excreted along with urine, but the process is too painful and would cause immediate death to the living being. How Long Does Charred Wood (Shou Sugi Ban) Last? good luck jimj Thickness (finished dressed) Given some of the sawmilling supply constraints Timbeck has to deal with the chosen finished I love spotted gum and use it for 90 per cent of my projects. Spotted gum is less durable in the ground than ironbark or tallowwood (Class 2 v. Class 1). Spotted Gum is definitely very hard-wearing, and it is heavy enough to sink in water. A body with low ammonia in the urine would prompt the eggs to eva… Spotted Gum Species Data Sheet Common Name/s Spotted Gum, Lemon-scented Gum ... Leaching of Tannins Staining is likely on adjacent surfaces after exposure to the elements. 90x19 Spotted Gum decking. Spotted gum is currently QLD’s largest harvested native hardwood by volume, meaning that spotted gum is widely available throughout Australia, with quantities also being exported internationally. Find out more about Porta Cumaru hardwood here. 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