How to proceed: Sand the damaged surface with 120 grip abrasive paper . Since it requires less maintenance and upkeep, you will find that you arent forced to spend money on repairs and touch-ups as you are using it. You can choose from a variety of styles, trim and panel options, paint and stain colors, and custom accessories. For more information visit our cookie policy page. Each batch of Accoya is checked for quality by taking 19 samples in Accsys laboratories. Lasting 50 years above ground, and 25 years in ground or freshwater, it has Class 1 durability. Such issues must be addressed, the sooner the better, not only to restore the painted surface but to investigate potential underlying problems. This surpasses even teak. Every effort has been made to ensure the accuracy of the estimate, however paint requirements may vary depending on the surface, type of paint, sheen level and colour chosen. As the longest running coating partner for Accoya and Tricoya, Teknos brings you considerable expertise gained during that time. What is acetylation and why does it make Accoya so special? When I looked at using accoya for my windows 3 years ago it seemed pretty new and the word was that there was a problem getting paint finishes to stick. Best of all, it will stay this way in the long run, allowing you to enjoy your wood for years to come. hUnFy3w8@ZE>X!JDFZ)i9w!eP~*$Eg&4d> {x{7Co! %%EOF EP15738680, EP14177679, EP15738676, EP15738672, EP15724263, EP15760149, EP13734851, EP13704063, EP14175220, EP2242624, EP1718442 together with corresponding patents in many other countries. Due to Accoyas exceptional dimensional stability, barely shrinking or swelling, coatings will last longer. Accoya has been used for structural purposes but is most commonly used for external joinery such as windows and doors. Edited by loughran on Monday 8th May 21:15. APPLICATION SUITABILITY. Its natural, high performance wood. In addition, its superior stability means less frequent coatings and maintenance. We hope to be able to answer that question in this blog. Crusty white salt crystals may look appealing on a pretzel, but not on the painted masonry of your home. To avoid heavy buildup in corners where paint commonly overlaps, thoroughly feather out the cut-in area; then clean and prep, reapplying paint evenly. For exterior conditions such as crumbly caulking, full gutters, or loose shingles, remove peeling paint by sanding, cleaning, and priming before repainting. The change in cell walls means that insects and fungi do not recognise Accoya wood as a food source and therefore do not attack. JavaScript is disabled. Edited by Wozy68 on Tuesday 9th May 10:23, http://www.gshaydon.co.uk/blog/category/wood-facts. Great stuff. 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. Ideally, stick to one formula to avoid blistering: latex over latex and oil over oil. An incredible sustainability story is shown in the life of Accoya wood. Colorless water repellents may prevent efflorescence from recurring, as may silicone or acrylic coatings. Combine with Teknos paint for a long-lasting extension. 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. 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. 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. Accoya wood is highly rot-resistant and very stable across varying climates. Do you want to request a sample or know where you can buy it? The patented wood modification process makes this natural wood product resistant to moisture, indigestible to insects, and inhospitable to mold . hb``d``Z }Y81 dx2L_(b%,h_v`FsmAL!005H10TE|0 d Accoya is wood. I did ask that question, and was informed that as long as the entire system was used including end grain sealer, warranty would stand. 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. . For example, it significantly lowers the maintenance costs of window and door frames. 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. Accoya is the ultimate surface for factory-coating with opaque or translucent paint. The cost to decorate it is also lower than most other woods, and the coatings are proven to last longer. Cracking If your paint has cracked, it means the paint was too thin or may have dried too fast. 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. It may seem relatively expensive upfront, but because of its many benefits, you may save money in the long run. 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. Contact us to get started. As oils can be a food source for disfiguring fungi, products containing a mouldicide are Andsign up to our monthly project newsletterto get the latest and greatest Accoya projects from around the world straight into your inbox. It is TRADA class 1 and performs even better than teak. 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. I should also add, Sapele is only rated as 'moderately durable.'. Over-thinning paint prior to application can also lead to chalking. Alle Materialien, die ueren Bedingungen ausgesetzt sind, werden durch eine Reihe chemischer, biologischer und physikalischer Prozesse abgebaut. Conversely, a heavy hand while painting can lead to whats called mud cracks, where too-thick paint dries with a clumpy, swollen look. Whether the wood is naturally durable or not we would still recommend that it is decorated and/or coated with a suitable product to provide protection and/or maintain its appearance. so using certain machines needs a lot more skill. Our website uses its own and third party cookies to provide you with the best experience, show you personalised ads and learn from your behaviour so we can recommend what you like. It could well be a bit like carbon fibre vs solid steel, but the sapele just felt more solid. If using a roller, fill the roller tray halfway. 'The products tested to date show that oil- based systems are . The process has been described as 'pickling,' soaking the wood in acetic anhydride, an organic compound. 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. Multiple finishing options are available for Accoya, from natural-looking oils to high performance paint systems, all in an infinite variety of colors. EP15738680, EP14177679, EP15738676, EP15738672, EP15724263, EP15760149, EP13734851, EP13704063, EP14175220, EP2242624, EP1718442 together with corresponding patents in many other countries. Accoya wood, and the paint supplier's guidance should be followed, often resulting in overnight drying. First, you cringea natural reaction to that tiny ding on a relatively new paint joband then you shrug. 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. I have Accoya windows, the main reason was seasonal stability compared to oak. Read on to understand the causes of common paint problems and how to repair them and avoid future issues. Copyright Accsys 2023, Accsys is a trading name of Titan Wood Limited. From what I've read, it's quoted as having a life span of about 60 years. Oil-based paint is also apt to blister when applied over a damp surfaceor when applied over water-based (latex) paint. 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. You can buy Accoya and Accoya products from our selection of distributors or manufacturers in your region. It is also important to follow the correct procedures for preparation and application of the paints and stains. Improve interior ventilation as needed with exhaust fans, wall vents, and/or louvers. Sie knnen Ihre Cookie-Einstellungen jederzeit verwalten. If you need to find a tradesperson to get your job done, please try our local search below, Softwood species are coniferous trees that are usually produced in plantations. ;el>#mB]wf6ugv4NdX(?V{XQ!Wq_Z9n9u8T'~QRun .]> It's also brittle - not a problem for windows, but Ive seen door tenons snap. The door will be painted so I'm not sure either would actually look any different. For a better experience, please enable JavaScript in your browser before proceeding. improve your website experience and provide you with personalised advertising Resene Bokara Grey 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. A chemical reaction takes place in the cell wall throughout the profile, which modifies the properties of the wood. Acetylation is a non-toxic . My number one priority was swelling and warping in the damper months. Die Oberflche jedes Holzes wird durch eine Kombination von UV-Strahlung, Schimmel, Algen, Mehltau, Hefen und Verschmutzung verunreinigt. This modification reduces the woods ability to absorb water in the cell walls by about 80%, greatly improving dimensional stability, resulting in Accoya requiring less maintenance. In order to fix the problem, you'll need to remove the paint, sand down the surface and apply primer, then repaint. Be patient when rolling. The only downside is that it smells of vinegar until its sealed. Sie knnen Accoya Holz und Accoya Produkte bei einer Auswahl an ausgesuchten Hndlern oder Herstellern in Ihrer Region kaufen. For a better experience, please enable JavaScript in your browser before proceeding. 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. Accoya wood offers unsurpassed dimensional stability and This special production process alters the cell structure of wood. As a product its fine. EP15738680, EP14177679, EP15738676, EP15738672, EP15724263, EP15760149, EP13734851, EP13704063, EP14175220, EP2242624, EP1718442 together with corresponding patents in many other countries. 2 - Durability: This is where Accoya really excels. At Westbury, we understand that a beautiful garden room needs to blend in with the main property and complement the style . You are using an out of date browser. Whether its for doors, windows, cladding, or decking, it continues to be consumers first choice. While improper prep and application can contribute to peeling, moisture is public enemy number one. The combined quality and service levels of Accoya, Tricoya and Teknos are one . Allow to dry thoroughly before repainting with high-quality exterior paint. Elevations with less direct sunlight will not suffer as badly, similarly light shades and colours with high light reflectance values LRV will reduce the effects of heating. Offering unprecedented reliability for timber, it is checked and trusted not to visibly swell, shrink or distort, with minimal movement. Address this by repairing plumbing, replacing caulking, and/or increasing ventilation as required. 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. Read more about acetylated wood here. It may not display this or other websites correctly. The pigments in paint are naturally released when exposed to weather changes, so some chalking is to be expected over time. There are a few different ways to ensure your timber is sustainable. 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. 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. Available from Promain.co.uk 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. Get the latest This Old House news, trusted tips, tricks, and DIY Smarts projects from our expertsstraight to your inbox. sign up to our monthly project newsletter. Containing no toxic substances as the process simply increases the levels of already present elements within the molecular structure of the wood. You can buy Accoya and Accoya products from our selection of distributors or manufacturers in your region. Perfect for those parts of the world with termites or other wood eating critters. Accoya wood is Class 1 durable and surpasses even the most durable old growth tropical hardwoods such as teak. Burst a few bubbles and examine the backside of blistered paint, as well as the substrate if it becomes exposed, to determine if moisture or heat is the culprit. When repainting to repair, youll likely want to apply the same product you used initially (but in subsequent projects, opt for quality latex paint, known for its adhesion and flexibility). Virtually no shelling, cracking, checking or fissuring will occur. For more information visit our cookie policy page. As its popularity increases, more questions about Accoya arise. Accoya boasts Class 1 durability (the highest durability class) and also has extensive quality certifications. Outside the house, peeling can result from inadequate caulking, clogged gutters, a leaky roof, or interior moisture that seeps through exterior walls. 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. Unmodified wood contains free hydroxyl groups that absorb and release water as weather conditions change. hbbd``b`$7X2@%D o@$"~"C dM I \?c 9 However, don't be fooled, although Accoya has excellent durability, normal maintenance routines must be adhered to. 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. As long as its from a good source . Are you a trade or supplier? If the blisters contain several coats of paint and popping them reveals bare substrate, theres a moisture issue. There are various ways to remove efflorescence, and you may need to use a combination, depending on the extent and severity: a wire brush, scraper, low-pressure washer, and/or cleaning with diluted white vinegar or a trisodium phosphate (TSP) solution (wear protective gear when working with this chemical) and then rinsing thoroughly. It may not display this or other websites correctly. Accoya wood is highly rot-resistant and very stable across varying climates. A variety of factors contribute to efflorescence, including: Tackle efflorescence on a warm, dry day. With Teknos you benefit from testing and performance data combined with a track record of real-world experience. Containing no toxic substances as the process simply increases the levels of already present elements within the molecular structure of the wood. 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. More information here: https://www.accoya.com 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. This special production process alters the cell structure of wood. Remove lint from a new roller cover, dip the roller into the well of the tray, then over the ribbed portion of the tray, repeating several times to evenly distribute the right amount of paint. Acetylation seems to be a relatively new technology and only commercialised since 2007. This process creates extremely dimensionally stable and durable wood. You can manage your cookie settings at any time. Jamming in the winter would of been a pain. Stirring too quickly or for too long can introduce bubbles to the paint that could transfer to the surface. Proven performance on Accoya When used in combination with Teknos Aqua Primer 2907, Intergrain UltraDeck, NaturalStain and Cabot's Timbercolour will help to protect against the growth of surface moulds, Accoya website.and provide long cycles between maintenance. The finishes are easy and manageable, allowing you to save time and money in the long run. Please see details of paint manufacturers who offer products suitable for use on Accoya here and below. Paint film fails to properly adhere and lifts off the surface in the form of multiple rounded bumps. Accoya is the brand name of this modified wood. Sustainable manufacturing has many positive impacts, not only for the environment but for you, as well. Efflorescence (also known as mottling) appears when the salts inherent in brick, concrete, cinderblock, and mortar dissolve in moisture and then leach out to the surface. Jamming in the winter would of been a pain. It tends to be most visible on pale-colored flat paints and is likely to occur on improperly sealed porous materials and poor-quality, factory-finished aluminum siding. Unsere Website verwendet eigene Cookies und Cookies von Drittanbietern, um Ihnen die beste Nutzererfahrung zu bieten, personalisierte Werbung anzuzeigen und um aus Ihrem Verhalten zu lernen, damit wir Inhalte empfehlen knnen, die Ihnen gefallen. Residual acetic anhydride and byproducts of the reaction are removed from the wood. Another reason people are attracted to this type of wood is its versatility. Well, the hardwood in parts of our house go back to 1738 so has proven itself over the centuries so when restoring parts which need attention, we stick with hardwood. Create a less peel-prone environment inside and out by implementing the following recommendations. There are many reasons why people favor this type of wood. Select the supplier or trade you require, enter your location to begin your search. Visit our where to buy page to get in contact. 2. The process adds nothing to the wood that is not naturally present. Filling cracks in gate rails before painting. Copyright Accsys 2023, Accsys is a trading name of Titan Wood Limited. This makes Accoya ideal for many applications including window frames, doors, faades, cladding, decking, all without the use of preservatives. Not allowing adequate dry time between coats can also lead to these problems. Allow to dry completely before repainting. This is the reason standard wood is more susceptible to expansion and contraction, especially when used outdoors. Such unsightliness can strike a variety of surfaces, indoors and out, from plaster to wood and siding. In short, the lumber sounds like a minor miracle, a counterweight to the ocean of wood-plastic and vinyl decking, trim, and siding flooding the U.S. market. Alligatoring tends to be more common with oil-based paints. Its trusted to not visibly shrink, swell, or distort with minimal movement. Use our map search tool to find your nearest Accoya supplier. Rough sawn sustainable wood is soaked in acetic anhydride. or if you are doing it yourself you can find suppliers local to you. Coatings can be expected to last up to three times longer than on unmodified timbers, substantially reducing maintenance requirements. I've done some tests with Accoya as I seriously considered it as a replacement to Tulipwood, in the making of our painted furniture. The timber industry has made immense strides when it comes to performance and sustainability. This considerably reduces the number of paint strokes during the life of the window, door, cladding or whatever it may be. The acetylation process strengthens the wood so it offers better performance, sustainability, durability, and more. I've never used it yet but thought the same as you. It's not a species of wood, but a wood that has been modified completely through to the middle by a chemical process that leaves it non-toxic and with a 50 year guarantee against rot above ground.
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