What is acetylation and why does it make Accoya so special? You can buy Accoya and Accoya products from our selection of distributors or manufacturers in your region. By clicking "allow", you accept the 2023 Tikkurila, 27 Marnin Way, West Edinburgh Business Park, Edinburgh, UK EH12 9GD. You can manage your cookie settings at any time. Wie jede natrliche Holzart ist auch Accoya-Holz anfllig fr Witterungseinflsse im Freien. It is slightly more expensive to buy than a frame made of tropical hardwood, but due to the reduction in maintenance combined with the longevity of the wood, any upfront costs are recovered relatively quickly. Peeling can also occur if paint is applied to a damp surface or to siding thats less than six inches above the ground. Copyright Accsys 2023, Accsys is a trading name of Titan Wood Limited. Outside the house, peeling can result from inadequate caulking, clogged gutters, a leaky roof, or interior moisture that seeps through exterior walls. Advice on both product choice and application is best provided by coatings manufacturers that have tested their products on Accoya, though more detail on the general principles can be found in section 9 of our Wood Information Guide. Advice on both product choice and application is best provided by coatings manufacturers that have tested their products on Accoya, though more detail on the general principles can be found in section 9 of our Wood Information Guide. They dont have to work as hard to move with the wood so will sit quite happily with far less maintenance, retouching, refinishing etc. Accoya modified wood has become the timber industry benchmark when it comes to performance. Crusty white salt crystals may look appealing on a pretzel, but not on the painted masonry of your home. Accoya is great but has issues with steel, so any hardware has to be stainless - not always possible. Jede Holzterrasse durchluft den natrlichen Prozess der Verwitterung, in dem das Holz mit der Zeit eine graue Farbe annimmt. Ja. Accoya uses acetylation to make the wood more resistant and durable. Accoya graue holzterrasse diesen Prozess vorweg und ermglicht ein gleichmig schnes Erscheinungsbild vom ersten Tag an. Please see details of paint manufacturers who offer products suitable for use on Accoya here and below. Interested in Accoya? Sand, feathering the edges to blend, then clean and prime the surface. Due to Accoyas exceptional dimensional stability, barely shrinking or swelling, coatings will last longer. Remove blisters and the underlying paint or primer, then sand to smooth and dull the surface, clean, prime, and repaint, taking care that the surface is below 90 F. Stir paint slowly yet briefly with a wooden stirrer or drill attachment. Often contractors or architects might not be totally familiar with this high performance wood, but have heard the name and want to know more about it. Use our map search tool to find your nearest Accoya supplier. The pine tree is harvested once it reaches maturity at around the 30 year mark. Fading Accoya can be used as an exterior/external timber (without treatment). Accoya, Tricoya and the Trimarque Device are registered trademarks owned by Titan Wood Limited and may not be used or reproduced without written permission. Some applications may call for the use of a primer containing stain blockers and/or a mouldicide. I've never used it yet but thought the same as you. Over-thinning your paint or applying it too thinly can also cause it to split. The timber industry has made immense strides when it comes to performance and sustainability. The cost to decorate it is also lower than most other woods, and the coatings are proven to last longer. If you need to find a tradesperson to get your job done, please try our local search below, There is not one specific brand of paint to use. You are using an out of date browser. Are you a trade or supplier? These species are considered sustainable because from production, to end of life, it works with the environment and community, instead of against it. An incredible sustainability story is shown in the life of Accoya wood. You can buy Accoya and Accoya products from our selection of distributors or manufacturers in your region. Often contractors or architects might not be totally familiar with this high performance wood, but have heard the name and want to know more about it. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Colorless water repellents may prevent efflorescence from recurring, as may silicone or acrylic coatings. Accoya wood is highly rot-resistant and very stable across varying climates. So why have you never heard of the Accoya tree? The combined quality and service levels of Accoya, Tricoya and Teknos are one . Over time, paint becomes brittle, making it less adaptable to temperature and humidity fluctuations. For brush application, dip the brush in, allowing paint to cover up to one-third of the bristle length; tap the brush lightly on both sides and avoid dragging the brush against the edge of the container. This means it can be handled the same way as untreated wood at the end of its life, providing many options, from recycling to upcycling. The only downside is that it smells of vinegar until its sealed. or the paint film has been damaged by aggressive atmospheric agents. The production of Accoya is based on the process of wood acetylation. For example, it significantly lowers the maintenance costs of window and door frames. First, you cringea natural reaction to that tiny ding on a relatively new paint joband then you shrug. Assess elevation aspect, take into account direct sunlight, colour choice, drying times. Accoya is a type of wood that's hitting the building industry with a unique and more eco-friendly approach to traditional wood products. Accoya is wood. Accoya is the brand name of this modified wood. Oils or oil-based products tend to be absorbed quickly and in large quantaties. Although, within each brand there may be some products that are better suited for use on Accoya than others in certain situations. Address this by repairing plumbing, replacing caulking, and/or increasing ventilation as required. Use this calculator to work out your requirements, if you have any question please get in touch with one of our team who will be more than willing to help you. -. For exterior conditions such as crumbly caulking, full gutters, or loose shingles, remove peeling paint by sanding, cleaning, and priming before repainting. I've done some tests with Accoya as I seriously considered it as a replacement to Tulipwood, in the making of our painted furniture. Obtaining a certification from the Forest Stewardship Council (FSC) is one of the main ways to prove this. The most popular applications are: Wooden bank protection / Ground water works. insufficient curing time for cement or mortar during construction; moisture migration from inside the house; groundwater penetration from an inadequately waterproofed basement; insufficient surface prep to remove previous efflorescence; and. This is the reason standard wood is more susceptible to expansion and contraction, especially when used outdoors. This surpasses even teak. Joe is correct about the dust, it is finer than most softwoods because the timber bone dry (about 5% usually). This can be offset by installing mechanical ventilation, preferably balanced ventilation with heat recovery [HRV ]separate fans to introduce fresh air and exhaust indoor air, located together and including anair-to-air heat exchangeror an energy-recovery ventilator (ERV), which transfers moisture from one airstream to the other. We have been using Accoya for the last 4 years and find it extremely stable, we have not notice any obvious health risks while using it during this time. For a better experience, please enable JavaScript in your browser before proceeding. Jamming in the winter would of been a pain. Perhaps the most creative term for a paint problem, alligatoring refers to a pattern that really does resemble reptilian skin. Compared to other durable woods, it offers greater thermal insulation, yielding energy conservation advantages in structures like window frames. Disclaimer:Tikkurila UK Paint Calculator is provided as a guide only. And be patient, always remembering to let paint dry fully between coats. checking), then develops into wide rectangular cracks. Copyright 2023 This Old House Ventures, LLC. 'Accoya wood may be finished with semi and non-film forming paint systems such as stains and oils'. hbbd``b`$7X2@%D o@$"~"C dM I \?c 9 Jamming in the winter would of been a pain. Pro2Pro Tip: New homes are generally well insulated and may not offer moisture a sufficient escape route. 138 0 obj <>/Filter/FlateDecode/ID[<0F64685564496F4AB37A48EB5AD90940>]/Index[119 34]/Info 118 0 R/Length 90/Prev 74049/Root 120 0 R/Size 153/Type/XRef/W[1 2 1]>>stream In addition, its superior stability means less frequent coatings and maintenance. And unfortunately, cracks can appear simply due to age. Acetylation seems to be a relatively new technology and only commercialised since 2007. Acetylation is the process of preventing the cells in wood from being able to absorb water. More information here: https://www.accoya.com Please see details of paint manufacturers who offer products suitable for use on Accoya here and below. Join our mailing list and stay up-to-date with Artisan Custom Doorworks, A company in the Netherlands known as Accsys, Sustainable manufacturing has many positive impacts, 475 Jessen Lane suite 300, Charleston, SC 29492. We and our advertising partners use cookies on this site and around the web to This can be done by subjecting a softwood (like Douglas Fir, Redwood, Southern Pine, and Western Red Cedar) to acetic anhydride, which turns it into a hardwood. All companies listed on our where to buy page have received training from Accsys on the use of Accoya and have been screened for basic performance criteria. We hope to be able to answer that question in this blog. Learn what causes the peskiest paint problemsand how to fix and avoid them in the future. The finishes are easy and manageable, allowing you to save time and money in the long run. JavaScript is disabled. Plus, sticking or jamming doors and windows are a thing of the past with Accoya. Stirring too quickly or for too long can introduce bubbles to the paint that could transfer to the surface. Vein-like lines that appear through at least one coat of paint may be faint initially, but these cracks tend to grow and deepen into dry, jagged flakes. If not, with the right technique, you can repair a poorly painted spot without a lot of headache. ( I really wanted Oak). https://morrells.co.uk/products/wood-finishes/. So how exactly does this treatment work? As long as its from a good source . Sustainable manufacturing has many positive impacts, not only for the environment but for you, as well. Die Oberflche jedes Holzes wird durch eine Kombination von UV-Strahlung, Schimmel, Algen, Mehltau, Hefen und Verschmutzung verunreinigt. That's good to hear, either accoya was getting a bit of bad press by the ludites 3 years ago or Teknos have got it sorted out now. And it has some key qualities that make it highly sought after for projects. Reduce mould growth Accoya is susceptible to growth of surface moulds, to slow this For more information visit our cookie policy page. Register today and take advantage of membership benefits. Allow to dry thoroughly before repainting with high-quality exterior paint. How To Fix Mildew On Painted Walls Step 2: Identify the Problem The first thing to do if you discover a dark mark resembling mildew on painted walls or ceilings is to test to determine if it is mold or mildew. One of the many reasons architects, manufacturers, and consumers choose this type of wood is because of the finish options and flexibility in design and texture. Repaint problem spots, taking care to load the brush or roller properly to avoid too-thin or too-thick application. Inside the home, excessive moisture may come from high humidity in the basement and/or foundation, but even zealous showering, cooking, and humidifier habits can be to blame. Then remove all blistered paint, sand smooth, clean, prime, and repaint. so using certain machines needs a lot more skill. Create a less peel-prone environment inside and out by implementing the following recommendations. It also withstands the test of any climate and is highly rot-resistant. I've used tricoya sheets a lot and that doesn't move at all. Accoya is quite common for exterior use in Europe, but I don't know of many people using it over here. JavaScript is disabled. EP15738680, EP14177679, EP15738676, EP15738672, EP15724263, EP15760149, EP13734851, EP13704063, EP14175220, EP2242624, EP1718442 together with corresponding patents in many other countries. Ensure surface is clean and free from mould, dirt, grease and other forms of contamination. Other causes of blistering include painting over a dirty surface, eschewing primer, and improper technique. This is what sets sustainable wood apart. Sie knnen Accoya Holz und Accoya Produkte bei einer Auswahl an ausgesuchten Hndlern oder Herstellern in Ihrer Region kaufen. On interiors, moisture passing through the walls from bathrooms, kitchens, basements, and laundry rooms can push paint off the surface. Rough sawn sustainable wood is soaked in acetic anhydride. Accoya bildet keine Ausnahme, und die anfnglich helle Farbe von unbeschichtetem Accoya kann dazu fhren, dass Schimmelpilze und Flecken mehr als bei anderen Holzarten frhzeitig auffallen, bevor es weiter zu grau verwittert. Aus der Sicht der technischen Leistung ist es im Hinblick auf Eigenschaften wie Haltbarkeit und Formbestndigkeit nicht notwendig, Accoya-Holz fr Verkleidungs- und/oder Terrassenanwendungen zu bearbeiten. Accoya | Acetylated Wood | Modified Wood, treated wood, Accoya Containing no toxic substances as the process simply increases the levels of already present elements within the molecular structure of the wood. Colour choice will have a direct effect on the thermal dynamic of the timber, Accoya although durable will still bleed resin and tannin, if a dark colour is applied to an elevation which is exposed to sunlight for long periods the heating of the surface will cause a resin migration which could result in blistering. Alle Materialien, die ueren Bedingungen ausgesetzt sind, werden durch eine Reihe chemischer, biologischer und physikalischer Prozesse abgebaut. Sapele in particular seems to be a very tough hardwood. Some paint imperfections, however, are more conspicuous and harder to overlook. Appearance Primarily clear of knots with little figuring. 152 0 obj <>stream Highly Durable Accoya offers the best level of durability possible in wood. Please contact your coating supplier for further advice. 2 aluminium and 2 top coats ? This also means the product has a low carbon footprint and is safe for people, pets, and the environment. Accoya Coatings PPG Field Applied Coatings Sheet. Virtually no shelling, cracking, checking or fissuring will occur. Accoya has been used for structural purposes but is most commonly used for external joinery such as windows and doors. A chemical reaction takes place in the cell wall throughout the profile, which modifies the properties of the wood. We hope to be able to answer that question in this blog. However, we have not independently verified all products produced by these companies which are owned and operated entirely independently of Accsys and therefore we make no representation or warranty as to suitability, quality, workmanship or performance of a particular companys products using Accoya for any given purpose, nor do we accept any liability for loss relating to any such product (other than as set out in our Accoya wood Certificate of Warranty). Many applications are possible due to the benefits of Accoya wood. Visit our where to buy page to get in contact. This process creates extremely dimensionally stable and durable wood. As a product its fine. placement and use of these cookies for these purposes. It starts as subtle wrinkling (a.k.a. Over-thinning paint prior to application can also lead to chalking. Every piece of Accoya has been modified through to its core, providing the same performance and protection no matter how the wood is cut, planed, drilled, shaped, or more. Did it have 4 coats of paint ? Apply one coat of Ultra Primer to all surfaces. This can be done by subjecting a softwood (like Douglas Fir, Redwood, Southern Pine, and Western Red Cedar) to acetic anhydride, which turns it into a hardwood. Allerdings sind die Anwendungen in der Tischlerei komplexer, daher empfiehlt es sich, vor der Verwendung von Accoya fr unbeschichtete Fenster und Tren fachkundigen Rat einzuholen. Paint film fails to properly adhere and lifts off the surface in the form of multiple rounded bumps. This special production process alters the cell structure of wood. It's also brittle - not a problem for windows, but Ive seen door tenons snap. So I spoke with Arnold Laver yesterday, they were trying to tell me it was because I had not used one of the finishes that Accoya recommend (Sikkens or Teknos) which I politely disagreed with. Teknos coatings have been used extensively on Accoya and Tricoya for over 15 years. Using household bleach, place a few drops on the suspect area and wait several minutes. hUnFy3w8@ZE>X!JDFZ)i9w!eP~*$Eg&4d> {x{7Co! Verwenden Sie unsere Suchmaschine um einen Accoya Lieferanten in Ihrer Nhe zu finden. Allow minimum 2 hours before overcoating. If using a roller, fill the roller tray halfway. 119 0 obj <> endobj not paint then? For the best experience on our site, be sure to turn on Javascript in your browser. It's Class 1 durable, which is comparable or better than the durability of hardwoods such as Jarrah, Rosewood and Teak. Supported by a 50 year above ground and 25 year in-ground warranty, effectively giving forests time to regrow across the total life cycle of Accoya, where other timbers have a shorter use life vs time taken to grow into logging maturity. The tech behind Accoya is centuries old, so I'd have no issues using it. The process has been described as 'pickling,' soaking the wood in acetic anhydride, an organic compound. However, we have not independently verified all products produced by these companies which are owned and operated entirely independently of Accsys and therefore we make no representation or warranty as to suitability, quality, workmanship or performance of a particular companys products using Accoya for any given purpose, nor do we accept any liability for loss relating to any such product (other than as set out in our Accoya wood Certificate of Warranty). This is an unavoidable effect and one which must be considered when pricing and managing a project. Such unsightliness can strike a variety of surfaces, indoors and out, from plaster to wood and siding. Improve interior ventilation as needed with exhaust fans, wall vents, and/or louvers. Wood acetylation works by changing the cell structure of the wood whereby the cell walls are blocked for moisture absorption. After this treatment takes place, acetyl groups (hydrogen, oxygen, and carbon chemicals) are created within the wood from the acetylation process, which changes the structure of the existing free hydroxyl groups. Accoya wood, and the paint supplier's guidance should be followed, often resulting in overnight drying. Filling cracks in gate rails before painting. I did ask that question, and was informed that as long as the entire system was used including end grain sealer, warranty would stand. He said basically it is still wood, a natural product, 95% of the time it's fine but on the odd occasion it can do something it shouldn't. Sounds like a bit of a cop out but we all know that wood does it's own thing sometimes. Containing no toxic substances as the process simply increases the levels of already present elements within the molecular structure of the wood. . You can choose from a variety of styles, trim and panel options, paint and stain colors, and custom accessories. The acetylation process can be broken down into six steps: Once the wood goes through the entire acetylation process, its ready to be put to use. Each batch of Accoya is checked for quality by taking 19 samples in Accsys laboratories. Then rinse to banish dust and let dry completely. Heat and moisture are both blister gremlins. 1. !R/2bg pfAw*% R:`P "`6TpQ.aZcOf:+7av ZXzKkt '[ 5t.~Fxq)>a;#)p/0>!5dAtZ8 Ji3IL*( A company in the Netherlands known as Accsys is able to transform fast-growing, sustainable wood into Accoya wood. Z0H"*. It may not display this or other websites correctly. Engineered softwood is fine for windows. Please see details of paint manufacturers who offer products suitable for use on Accoya here and below. In this blog, we will highlight everything you need to know about this special type of wood, making it easier for you to decide if its right for you. If blisters affect only the previous coat of paint, heat is likely at fault. With Accoya, swelling and shrinkage is reduced by 75% or more, which means doors and windows will open effortlessly all year round. Resene Bokara Grey You must log in or register to reply here. If the blisters contain several coats of paint and popping them reveals bare substrate, theres a moisture issue. Oil-based paint is also apt to blister when applied over a damp surfaceor when applied over water-based (latex) paint. By only using timber from FSC-certified forests, the manufacturer can prove its supplies are managed in an environmentally appropriate, socially beneficial, and economically viable manner. It is also important to follow the correct procedures for preparation and application of the paints and stains. Its trusted to not visibly shrink, swell, or distort with minimal movement. Accoya lasts for 50 years above grade, 25 years in contact with the ground or submerged in fresh water, and has a service life of 70 years, according to its manufacturer. The store will not work correctly in the case when cookies are disabled. If blisters affect only the previous coat of paint, heat is likely at fault. However, we have not independently verified all products produced by these companies which are owned and operated entirely independently of Accsys and therefore we make no representation or warranty as to suitability, quality, workmanship or performance of a particular companys products using Accoya for any given purpose, nor do we accept any liability for loss relating to any such product (other than as set out in our Accoya wood Certificate of Warranty). Was it just one piece of wood that split or all of it ? I have Accoya windows, the main reason was seasonal stability compared to oak. Some of the most common uses are: Whether you choose to use it for a small or large project, this particular type of wood carries the reputation of being one of the best choices when it comes to timber. There is not one specific brand of paint to use. Whether its for doors, windows, cladding, or decking, it continues to be consumers first choice. Visit our where to buy page to get in contact. Remove blisters and the underlying paint or primer, then sand to smooth and dull the surface, clean, prime, and repaint, taking care that the surface is below 90 F. Stir paint slowly yet briefly with a wooden stirrer or drill attachment. The real world performance over this time has matched up to the high expectations built up through extensive testing programs. It was just both stiles that had the cracks in, they were both machined out of the same length of Accoya, guess maybe it was a bad piece. The penetrating, matt finish allows the beauty of the grain to show through. Cracking If your paint has cracked, it means the paint was too thin or may have dried too fast. Scientists have proven that this modification process is an incredibly effective method to improve the technical properties of wood. The process can be hastened through such missteps as applying a rigid coating such as oil enamel over a softer, more flexible coat (e.g., latex paint or latex primer); painting over a glossy finish (the topcoat not bonding properly to the glossy finish), or not allowing sufficient dry time between primer/basecoat and topcoat. Edited by Wozy68 on Tuesday 9th May 10:23, http://www.gshaydon.co.uk/blog/category/wood-facts. Blisters can appear on both interior and exterior painted surfacesdrywall, plaster, metal, and wood. It may not display this or other websites correctly. In order to fix the problem, you'll need to remove the paint, sand down the surface and apply primer, then repaint. The Medite Tricoya product, which is the sheet material product made from the same process as Accoya has been brilliant. This special production process alters the cell structure of wood. Alligatoring tends to be more common with oil-based paints. Sapele is a lot harder to work with due to its grain formation etc . 6 coat total build up. Accoya is no exception and the initial light color of uncoated Accoya may cause early molds and blemishes to stand out more than on other wood types, prior to it weathering further to gray. Do you want to request a sample or know where you can buy it? Ideally, stick to one formula to avoid blistering: latex over latex and oil over oil. 2 - Durability: This is where Accoya really excels. It is TRADA class 1 and performs even better than teak. As oils can be a food source for disfiguring fungi, products containing a mouldicide are While its possible to successfully apply latex paint over oil-based primers and paints if necessary, you should try to avoid doing so as its likely to lead to blistering. painting over holes, cracks, or unrepaired pointing. Accoya, Tricoya and the Trimarque Device are registered trademarks owned by Titan Wood Limited and may not be used or reproduced without written permission. Although, within each brand there may be some products that are better suited for use on Accoya than others in certain situations. ;el>#mB]wf6ugv4NdX(?V{XQ!Wq_Z9n9u8T'~QRun .]> Follow the tips detailed below for solutions. Copyright Accsys 2023, Accsys is a trading name of Titan Wood Limited. Or too-thick application variety of surfaces, indoors and out, from plaster to wood and siding reason wood. In this blog schnes Erscheinungsbild vom ersten Tag an products suitable for use Accoya! With oil-based paints the paints and stains not only for the use of a primer containing stain blockers and/or mouldicide! You want to request a sample or know where you can repair a poorly accoya paint problems without! Effective method to improve the technical properties of the grain to show through, please enable in! This special production process alters the cell structure of the grain to show through product! Move at all Algen, Mehltau, Hefen und Verschmutzung verunreinigt Produkte bei einer Auswahl ausgesuchten. Einen Accoya Lieferanten in Ihrer accoya paint problems kaufen also lead to chalking commonly used for structural purposes but is most used. Or unrepaired pointing stain colors, and improper technique accoya paint problems, but Ive seen tenons... Prime, and improper technique, werden durch eine Reihe chemischer, biologischer und Prozesse. Acetylation is the process simply increases the levels of Accoya wood, and the coatings are proven to longer... 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