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PERFORMANCE TESTING SUMMARY
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PERFORMANCE TESTING SUMMARY - 1

PERFORMANCE TESTING SUMMARY

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PERFORMANCE TESTING SUMMARY - 2

CONTENTS 04 Durability comparison – SCION Accoya® wood is more durable than teak and other naturally durable species 05 15-year window L-joint test – BRE Accoya® wood L-joints exhibit no rot or decay after 15 years 06 3-year Accoya® face laminated window test – BRE The windows were rated ‘excellent’ (10/10) Whole life costs Accoya® wood has lower life cycle cost BRE confirms 60 year service life for Accoya® in exterior applications 09 Formosan termite durability test – LSU Accoya® demonstrates durability in aggressive US termite tests 10 Field test – Kagoshima test site, Japan Accoya®...

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PERFORMANCE TESTING SUMMARY - 3

INTRODUCTION Accoya® wood is the result of over 80 years research and development. Combining the proven modification technique of acetylation with cutting-edge proprietary technology, this high performance wood is created for demanding outdoor applications; from windows to doors, decking to cladding, bridges to boats. Wood for Accoya® is sourced from sustainable forests and manufactured using Accsys’ patented modification process. Its properties exceed those of the best tropical hardwoods and it can handle the most demanding jobs – even those that are presently only considered feasible with...

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PERFORMANCE TESTING SUMMARY - 4

DURABILITY COMPARISON – SCION DECAY RATES OF FUNGUS CELLAR STACKLETS [index of condition] 10 Accoya® 8 Scion, formerly known as New Zealand Forest Research Institute Ltd, undertakes research and science and technology development in forestry, wood products, biomaterials and bioenergy. Scion tested the durability of Accoya® wood against other naturally durable and preservative treated timbers. The harsh tests run exposed timbers in accelerated decay chambers and in exterior ground contact tests at the Whakarewarewa site. The tests have run for ten years and show Accoya® performing better...

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PERFORMANCE TESTING SUMMARY - 5

Non-acetylated wood showing major attack Accoya® wood showing no rot or decay 15-YEAR* WINDOW L-JOINT TEST – BRE The BRE (Building Research Establishment) is an independent institute based in Watford, UK. Non-acetylated wood showing severe rot and decay Accoya® wood showing no rot or decay In durability field testing to European Norm (EN) 330:1993 – which parallels America WoodPreservers’ Association (AWPA) E9 – simple mortice and tenon joints (L-joints) are assembled, coated and placed outside, with the coating over the joint deliberately broken to allow water ingress that might be...

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PERFORMANCE TESTING SUMMARY - 6

3-YEAR FACE LAMINATED ACCOYA® WINDOW TEST - BRE Two window frames made from face laminated Accoya® / pine / pine wood were installed in the BRE Window Joinery Test building in June 2012, facing South to maximise solar irradiance. One window frame was coated with a translucent finish, and one with an opaque white finish. Additionally, a range of durability and dimensional stability tests have been completed at IFT Rossenheim, Germany according to standard methods for 2.0m length scantling stability and adhesive bond delamination resistance. The tests have been completed for Accoya®-Pine-Pine...

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PERFORMANCE TESTING SUMMARY - 7

SUPERIOR WHOLE LIFE COST FOR WINDOWS A study with a Dutch window producer and a maintenance company shows that Accoya® is initially more expensive but has a lower total cost than PVC, aluminium, pine and hardwood windows over the life of the home. ACCOYA® WOOD: - Ensures lower maintenance costs - Ensures longer time between maintenance - Has extended durability and won't need replacing for 50+ years COST EFFECTIVENESS PER WINDOW FRAME PVC Accoya® Aluminium Pine Meranti Initial cost LIFE CYCLE COST FOR WINDOW FRAMES IN A TYPICAL DUTCH HOME

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PERFORMANCE TESTING SUMMARY - 8

60-YEAR SERVICE LIFE – BRE After running tests and reviewing external and independent data, the BRE concluded that Accoya® wood, provided best design practice is followed, has a service life expectancy of 60 years when used in exterior applications such as windows, doors, cladding and balconies. The BRE stated that Accoya® wood shows excellent durability and stability properties. This position has been positively corroborated by TRADA and Heirott Watt University / Imperial College London conducting similar service life reviews. “We consider that joinery, cladding and balconies prepared from...

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PERFORMANCE TESTING SUMMARY - 9

Accoya® wood Non-Accoya® wood Accoya® wood Non-Accoya® wood FORMOSAN TERMITE DURABILITY TEST – LSU Coptotermes formosanus, known as Formosan termites, are considered one of the world’s most aggressive termite species. Louisiana State University (LSU) conducted a 99 day Formosan termite ‘choice’ test, using untreated radiata pine and Accoya® wood (2” x 4” lumber). All four sides of the untreated radiata pine were attacked and left structurally compromised. In stark contrast, Accoya® wood only exhibited slight grazing. The results of standardised testing show that Accoya® wood was 22 times...

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PERFORMANCE TESTING SUMMARY - 10

FIELD TEST – KAGOSHIMA TEST SITE, JAPAN The extreme field test conducted was primarily against two different types of termites in two locations of the field site located in Kagoshima, South Japan. The site is used by JWPA for assessment on the basis of the warm and wet climate, coupled with presence of Coptotermes formosanus in the dry area and Reticulitermes speratus is active in a wet area of the site. Collectively the sites also have an assortment of rot fungi present including white and brown rots. After 5 years of testing, no signs of termite attack were detected on any Accoya® test...

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PERFORMANCE TESTING SUMMARY - 11

Radiata Pine TERMITE DURABILITY TEST AUSTRALIA – AFRC Mastotermes darwiniensis is the most destructive species of Australian termite and active north of the Tropic of Capricorn Hazard Class 3 above ground testing was set up in Northern Territory, Australia according to the AWPA protocol by the Australian Forest Research Company. At the conclusion of the field trial all test specimens had evidence of contact by M. darwiniensis, and all untreated Eucalyptus nitens bait-wood, used as a susceptible and attractive food source for maintaining the presence of termites in exposure containers, had...

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