Accoya
Accoya® is acetylated pine timber. Durable, non-toxic, insect barrier and dimensionally stable with 25 year warranty.
What is acetylated timber?
The process behind Acetylation.By altering the modular structure of wood to resist water absorption, we ensure water and warping resistance. Our wood comes with a 50-year durability warranty, and boasts accreditations and certifications such as Cradle to Cradle, SGBC, LEED, termite-resistance, and Class 3 fire rating certifications
ACCOYA® WOOD KEY FEATURES
A sustainably consistent supply of durable, non-toxic, and dimensionally stable wood makes it an ideal material for manufacturing high performance exterior timber products such as wood siding, outside decking, cladding, landscape timbers and joinery.
Barefoot friendly
Consistant quality throughout
Dimensionally stable
Excellent machinability
From sustainable sources
Insect barrier
Naturally Beautiful woodNaturally insulating
Non-toxic and recyclable
Outstanding durability
Perfect for Coating
Retained strength and hardness
NATURALLY INSULATING
- Offers improved insulation in comparison with commonly used hardwood and softwood species
- Ideal for applications where energy conservation is important
RETAINED STRENGTH & HARDNESS
- The process does not compromise the wood’s strength
- Hardness is increased
- High strength to weight ratio makes it suitable for challenging applications
BAREFOOT FRIENDLY
- Ideal for all decking situations in extreme temperatures
- Low thermal gain
- Splinters are much less than other wood species when used for decking
EXCELLENT MACHINABILITY
- Easy to machine and process
- No special tools are required
INSECT BARRIER
- Indigestible to a wide range of insects, including termites
- Greatly reduced vulnerability
SUSTAINABLE SOURCE
- From FSC® and other regionally certified woods
- Naturally renewable
ACCOYA® Colour swatches
Thermal Gain on Decks
Decking and terrace under the sun is prone to thermal gain, and during the hot summer days, the deck temperature can reach over 65 °C.
Using a thermogram image analysis, Accoya®, was tested long side with three variants of WPC decking.
The ambient temperature of the test site was 32°C.
Accoya®39 ~ 47°C
Thermally modified wood47 ~ 51°C
Wood Plastic Composite53 ~ 57°C
The thermograms indicates Accoya®’s thermal gain is substantially less than the alternatives tested. This makes it truly “barefoot friendly” and resistance to cupping and splintering with prolonged weathering.
Installation
technical data
Standard Lengths
2.4m, 3.0m, 3.6m, 4.2m, 4.8m Please contact us for stock availability and delivery time.
- All dimensions are actual rough sawn.
- Accoya® wood is available in many other standard decking sizes and siding patterns from our partners.
A1: 4 sides primarily clear
A2: 3 sides primarily clear
FJ: Finger Jointed
Other grades and dimensions can be made. Please contact us for more information.
standard dimensions & Grades
INSECT DECAY
Accoya® wood is indigestible to a wide range of pests and an effective barrier to attack. For instance, when tested for termites according to AWPA E1 standards, appearance ratings consistently scored ≥ 9 (Light Attack), whereas the control sample averaged 3.5 (worse than Heavy Attack). Additionally, Accoya®️ wood exhibited an average weight loss of only 1.43%, compared to the control sample's average of 32.06%.
MACHINABILITY
Processing does not affect the unique properties of Accoya® wood, as it is modified throughout and not leachable. It is relatively easy to process and can be compared to profiling a soft wood species. No special tools are required for cross cutting, ripping, planing, routing and drilling. Sanding before finishing is rarely required.
GLUING
Both load bearing and non-load bearing applications have been tested using adhesive systems related to laminating, finger jointing and frame corner joints. While good results can be achieved with most common adhesives, PU, epoxy and PRF adhesives give the best results. The results of gluing with polyvinyl acetate (PVAc) and melamine urea formaldehyde (MUF) can vary greatly. Specific recommendations for your project are available upon request.
FINISHING
Most commonly used coating systems can be used on Accoya® wood. Testing has been performed with a full range of oilbased and water-based coating systems. Leading coating manufacturers have found that their products last three or more times longer when used on Accoya® wood. Specific recommendations for your project are available upon request.
Material
100% Solid Accoya® Wood
DURABILITY
EN 113 Class 1 (the highest rating). It is an effective barrier against a broad spectrum of fungi including cellar, wet rot, dry rot, soft rot, white, brown and pore fungi.
EQUILIBRIUM MOISTURE CONTENT
3 – 5 % at 65% relative humidity, 20°C
DENSITY AND SPREAD
65% RH, 20°C, Average 512 kg/m³, Range 432 to 592 kg/m³
SHRINKAGE
FIRE RATING
Class C (ASTM E84) and D (EN14915). Accoya® wood can be firetreated to meet higher requirements.
THERMAL CONDUCTIVITY
EN 12667, λ = 0.12 W/m∙K
BENDING STRENGTH
EN 408, 40 N/mm²
BENDING STIFFNESS
EN 408, 8800 N/mm²
JANKA HARDNESS
ASTM D143, Side 4100 N, End grain 6600 N