Get the latest This Old House news, trusted tips, tricks, and DIY Smarts projects from our expertsstraight to your inbox. Painting over the cracks will just produce the same uneven surface and texture. Accoya can therefore be used in any desired project. 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. Assess elevation aspect, take into account direct sunlight, colour choice, drying times. This is what sets sustainable wood apart. Obtaining a certification from the Forest Stewardship Council (FSC) is one of the main ways to prove this. 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. 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. Accoya is the brand name of this modified wood. painting over holes, cracks, or unrepaired pointing. Ideally, stick to one formula to avoid blistering: latex over latex and oil over oil. Its natural, high performance wood. We hope to be able to answer that question in this blog. Accoya wood is Class 1 durable even in very challenging use environments. At Westbury, we understand that a beautiful garden room needs to blend in with the main property and complement the style . This special production process alters the cell structure of wood. Visit our where to buy page to get in contact. 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. Jamming in the winter would of been a pain. Insufficient surface prep is the main culprit behind crack attacks. Acetylation is a non-toxic . The production of Accoya is based on the process of wood acetylation. To avoid heavy buildup in corners where paint commonly overlaps, thoroughly feather out the cut-in area; then clean and prep, reapplying paint evenly. Joe is correct about the dust, it is finer than most softwoods because the timber bone dry (about 5% usually). From contributor Ad. 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). For more information visit our cookie policy page. 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. -. Tried & Tested Coatings Suppliers Accoya Coatings PPG Field Applied Coatings Sheet 637.80kB Accoya Coatings PPG Duracolor Sheet 1.34MB Teknos US Sales Sheet 1.18MB Accoya Coatings ICA Leaflet 1.54MB Accoya Coatings Remmers Leaflet 2.54MB Fading Plus, sticking or jamming doors and windows are a thing of the past with Accoya. Edited by Wozy68 on Tuesday 9th May 10:23, http://www.gshaydon.co.uk/blog/category/wood-facts. The pigments in paint are naturally released when exposed to weather changes, so some chalking is to be expected over time. Sand, feathering the edges to blend, then clean and prime the surface. 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. Thankfully with Accoya's excellent durability, the issues with rot become controlled, at least to some extent. 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 makes Accoya ideal for many applications including window frames, doors, faades, cladding, decking, all without the use of preservatives. Peeling paint that has a bit of curl to it is a common problem on both interior and exterior surfaces. Containing no toxic substances as the process simply increases the levels of already present elements within the molecular structure of the wood. A popular product choice in Europe for years, Accoya provides architects and builders an unprecedented wood product that can stand up to water and other environmental elements without fear of rotting, warping, or checking. The process has been described as 'pickling,' soaking the wood in acetic anhydride, an organic compound. Then remove all blistered paint, sand smooth, clean, prime, and repaint. You can manage your cookie settings at any time. 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 The penetrating, matt finish allows the beauty of the grain to show through. Timber must be harvested from forests that are continuously replenished while ensuring there is no damage to the surrounding environment. I broke a couple of drill bits trying to put a bolt on a new stable door! Accoya | Acetylated Wood | Modified Wood, treated wood, Accoya 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. JavaScript is disabled. Cracking If your paint has cracked, it means the paint was too thin or may have dried too fast. 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. Accoya Coatings PPG Field Applied Coatings Sheet. !R/2bg pfAw*% R:`P "`6TpQ.aZcOf:+7av ZXzKkt '[ 5t.~Fxq)>a;#)p/0>!5dAtZ8 Ji3IL*( The coating i used was Teknos paint system, and all fixings are. Its at this point its journey isnt the same as other timber. The Medite Tricoya product, which is the sheet material product made from the same process as Accoya has been brilliant. 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. Accoya wood is Class 1 durable and surpasses even the most durable old growth tropical hardwoods such as teak. Accoya wood is highly rot-resistant and very stable across varying climates. It is TRADA class 1 and performs even better than teak. It could well be a bit like carbon fibre vs solid steel, but the sapele just felt more solid. Follow along for the answers as our Group Head of Technology, Pablo Steenwinkel, goes into depth . 6 coat total build up. However, don't be fooled, although Accoya has excellent durability, normal maintenance routines must be adhered to. Accoya wood offers unsurpassed dimensional stability and 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). It is also important to follow the correct procedures for preparation and application of the paints and stains. Testing has been carried out across many different oil and water-based paint systems. Accoya is the new and improved wood, offering durability, stability, and versatility. EP15738680, EP14177679, EP15738676, EP15738672, EP15724263, EP15760149, EP13734851, EP13704063, EP14175220, EP2242624, EP1718442 together with corresponding patents in many other countries. Oil-based paint is also apt to blister when applied over a damp surfaceor when applied over water-based (latex) paint. You can create your listing free at DIYnot Local. Colorless water repellents may prevent efflorescence from recurring, as may silicone or acrylic coatings. 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. Blisters can appear on both interior and exterior painted surfacesdrywall, plaster, metal, and wood. Use our map search tool to find your nearest Accoya supplier. For more information visit our cookie policy page. ( I really wanted Oak). Containing no toxic substances as the process simply increases the levels of already present elements within the molecular structure of the wood. Follow the tips detailed below for solutions. Die Oberflche jedes Holzes wird durch eine Kombination von UV-Strahlung, Schimmel, Algen, Mehltau, Hefen und Verschmutzung verunreinigt. Teknos can help you select the optimum system For more information visit our cookie policy page. This has been awarded to Accoya because it is fully circular. If using a roller, fill the roller tray halfway. Remove unsightly scales by scraping, sanding, applying chemical removers, or using a heat gun. Accoya starts life as a fast-growing pine tree (Pinus radiata) grown in managed forests. 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. Scientists have proven that this modification process is an incredibly effective method to improve the technical properties of wood. Filling cracks in gate rails before painting. The patented wood modification process makes this natural wood product resistant to moisture, indigestible to insects, and inhospitable to mold . Accoya is the ultimate surface for factory-coating with opaque or translucent paint. The store will not work correctly in the case when cookies are disabled. Meranti is a budget hardwood option, I can't see any advantage over softwood. 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 its popularity increases, more questions about Accoya arise. Stirring too quickly or for too long can introduce bubbles to the paint that could transfer to the surface. Address this by repairing plumbing, replacing caulking, and/or increasing ventilation as required. Accoya wood is Cradle to Cradle Gold CertifiedTM. As oils can be a food source for disfiguring fungi, products containing a mouldicide are It's almost like they didn't dip that piece of timber long enough. https://www.accoya.com/projects/project -kentucky/. For a better experience, please enable JavaScript in your browser before proceeding. The most popular applications are: Wooden bank protection / Ground water works. 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. Due to Accoyas exceptional dimensional stability, barely shrinking or swelling, coatings will last longer. These doors even come standard with a 50-year limited warranty against rot, termites, and other expected degradation. 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. But serious cases are usually due to using the wrong producteither interior paint or low-quality exterior paint that contains a high degree of extenders (white, powdery paint additives). Rough sawn sustainable wood is soaked in acetic anhydride. Hopefully you now know what Accoya is. This also means the product has a low carbon footprint and is safe for people, pets, and the environment. Virtually no shelling, cracking, checking or fissuring will occur. 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. Accoya is the brand name of this modified wood. Accoya wood is sustainably-sourced New Zealand grown Radiata Pine that undergoes a proprietary, non-toxic acetylation process that permanently modifies the wood to the core. APPLICATION SUITABILITY. 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. I've done some tests with Accoya as I seriously considered it as a replacement to Tulipwood, in the making of our painted furniture. Accoya is wood. It's also brittle - not a problem for windows, but Ive seen door tenons snap. 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. Crusty white salt crystals may look appealing on a pretzel, but not on the painted masonry of your home. I've never used it yet but thought the same as you. While improper prep and application can contribute to peeling, moisture is public enemy number one. Copyright 2023 This Old House Ventures, LLC. Improve interior ventilation as needed with exhaust fans, wall vents, and/or louvers. Contact us to get started. Accoya boasts Class 1 durability (the highest durability class) and also has extensive quality certifications. 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. 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. There is not one specific brand of paint to use. Not allowing adequate dry time between coats can also lead to these problems. Engineered softwood is fine for windows. You can buy Accoya and Accoya products from our selection of distributors or manufacturers in your region. Accoya is a type of wood that's hitting the building industry with a unique and more eco-friendly approach to traditional wood products. Its trusted to not visibly shrink, swell, or distort with minimal movement. %PDF-1.6 % Be patient when rolling. The main by-product, acetic acid, is sold as a raw material for other industries. Heat and moisture are both blister gremlins. Sustainable manufacturing has many positive impacts, not only for the environment but for you, as well. Some paint imperfections, however, are more conspicuous and harder to overlook. In terms of performance, Accoya is known for its reliability. 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. Sapele in particular seems to be a very tough hardwood. 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. The coverage rates will vary depending on surface being coated and the particular product range being used. If the blisters contain several coats of paint and popping them reveals bare substrate, theres a moisture issue. Acetylation is the process of preventing the cells in wood from being able to absorb water. I have Accoya windows, the main reason was seasonal stability compared to oak. Highly Durable Accoya offers the best level of durability possible in wood. Prime, allow to dry and repaint. So how exactly does this treatment work? Over time, paint becomes brittle, making it less adaptable to temperature and humidity fluctuations. Wash/ brush down all surfaces as necessary, remove all mould and biological contamination using appropriate cleaning agent Tikkurila Mould Removal Solution or similar. Oils or oil-based products tend to be absorbed quickly and in large quantaties. If blisters affect only the previous coat of paint, heat is likely at fault. 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. 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. You are using an out of date browser. Accoya, Tricoya and the Trimarque Device are registered trademarks owned by Titan Wood Limited and may not be used or reproduced without written permission. 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. How to proceed: Sand the damaged surface with 120 grip abrasive paper . Applying an impregnating hydrophobic sealant to a building material surface can prevent water absorption and keep moisture from entering the material. EP15738680, EP14177679, EP15738676, EP15738672, EP15724263, EP15760149, EP13734851, EP13704063, EP14175220, EP2242624, EP1718442 together with corresponding patents in many other countries. 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. For exterior conditions such as crumbly caulking, full gutters, or loose shingles, remove peeling paint by sanding, cleaning, and priming before repainting. In addition, its superior stability means less frequent coatings and maintenance. Use our map search tool to find your nearest Accoya supplier. Using household bleach, place a few drops on the suspect area and wait several minutes. 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. There is not one specific brand of paint to use. Learn what causes the peskiest paint problemsand how to fix and avoid them in the future. Accoya, Tricoya and the Trimarque Device are registered trademarks owned by Titan Wood Limited and may not be used or reproduced without written permission. 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. -,mn#2^C,UwUf)HOeum^_r]%n?XF9"^6 Ru:q[l\=MA-g2O=zB6^j{ZR&e +f^T*i&2E9\x7\hbL(}qmPrt|C_!0G#.. The change in cell walls means that insects and fungi do not recognise Accoya wood as a food source and therefore do not attack. Sapele is a lot harder to work with due to its grain formation etc . Coatings can be expected to last up to three times longer than on unmodified timbers, substantially reducing maintenance requirements. Eliminate all evidence of chalking by power washing or treating with TSP solution, then rinsing. I should also add, Sapele is only rated as 'moderately durable.'. 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. As long as its from a good source . 'The products tested to date show that oil- based systems are . For a better experience, please enable JavaScript in your browser before proceeding. 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. Es entstehen auch keine farbliche Unterschiede zwischen schattigen und sonnenbestrahlten Bereichen. It may not display this or other websites correctly. Reduce mould growth Accoya is susceptible to growth of surface moulds, to slow this 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. A fine, powdery white substance that forms on painted exteriors, chalking is most often seen in arid, sunny climates. Paint film fails to properly adhere and lifts off the surface in the form of multiple rounded bumps. The acetylation process strengthens the wood so it offers better performance, sustainability, durability, and more.