ECOLOGICAL LONG-LASTING ATTRACTIVE

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TEChNICAL dATA ShEET 1. Introduction 1.1 General With the development of the DAUERHOLZ process, it has been possible for the first time to modify indigenous wood in such a way that it exceeds all other standard indigenous woods and even many tropical woods as regards durability and dimensional stability in outdoor applications without making any compromises in terms of strength. Full impregnation of wood with non-toxic wax through to the core ensures very good hydrophobicity (water-repellent impregnation) of the material. Combined with the low equilibrium moisture content of DAUERHOLZ, the basis of life for wood-destroying organisms (fungi, insects) is thereby eliminated. 1.2 The DAUERHOLZ manufacturing process The basic material for the production of DAUERHOLZ is sawn timber from native woods, especially Scotch pine. In accordance with a preconditioning process exactly co-ordinated to the patented DAUERHOLZ process followed by drying, the wood is impregnated with a liquid wax inside an autoclave. This is followed by a defined post-conditioning process for formulating the equilibrium moisture content and consistent wax distribution inside the wood. The treated wood then runs through the usual processing steps such as sawing, planing and profiling. 2. DAUERHOLZ features 2.1 DAUERHOLZ dimensional stability The DAUERHOLZ process significantly reduces the equilibrium moisture content. DAUERHOLZ is supplied with an average residual moisture of approx. 10 %. Thanks to the considerable hydrophobicity (water-repellent impregnation) of DAUERHOLZ, its swell and shrinkage properties are significantly reduced. As indicated in Fig. 1, the water absorption and therefore dimensional changes are reduced over the comparison period by more than 60 % when compared to untreated wood. Accordingly, DAUERHOLZ products do not display the deformations (splitting, warping) typical of changes in wood moisture or only in minimum and insignificant form. Fig. 1: Results of an underwater swell test over 30 days g/cm 3 0,25 0,2 0,15 0,1 0,05 0 Water absorption in g/cm³ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Raw pine DAUERHOLZ-pine Test duration in days 2.2 Laying DAUERHOLZ decking DAUERHOLZ recommends proceeding as follows: • 5 mm spacing between planks which are 90 or 115 mm wide, 6 mm between planks which are 130 mm wide and 7 mm spacing between planks which are 140 or 145 mm wide. • The base should be laid with max. 40 cm (plank thickness = 21 mm), max. 50 cm (25 mm) or max. 80 cm (42 mm) spacing. • The screws must be made of stainless steel. • All holes should be pre-bored and then countersunk. • Decking should be laid at an incline of approx. 1% away from buildings 2.3 DAUERHOLZ durability Following initial screening tests, DAUERHOLZ durability complies with class 1 (very durable) in accordance with the EN 350-1 and EN 350-2 standards. DAUERHOLZ thereby achieves or even exceeds most tropical woods in terms of durability, e.g. bangkirai. Even with permanent ground contact or persistent water (hazard class 4), protection is provided against wood-destroying organisms. This means that there are practically no limits to the possible applications in outdoor areas. 2.4 DAUERHOLZ appearance and weathering resistance The natural colour of DAUERHOLZ complies with that of untreated wood. DAUERHOLZ PUR (unoiled surface) or, on request, DAUERHOLZ PLUS with oiled surface are supplied ex works. Thanks to the DAUERSCHÖN + wood oil used, the oiled variant is attributed an individual colour and additional UV protection. 2.5 DAUERHOLZ hardness / strength Depending on the density of the initial material, DAUERHOLZ pine has an average density of 700 to 800 kg / m³. Laboratory tests have confirmed that strength increases by up to 30 % (see Table 1) via full impregnation with wax and when compared to untreated wood (compressive strength longitudinal and transverse to grain direction). Average surface hardness also increases by approx. 30 %. The strength losses often observed in thermally-modified wood (so-called thermo-wood) do not affect DAUERHOLZ at all. Tab. 1: A comparison of strength values Sample layer / Source Density kg / m³ Compressive strength N / mm² Radial hardness N / mm² Tangential hardness N / mm² End grain hardness N / mm² Sapwood, close-ringed 960 DAUERHOLZ pine 86,2 39,8 31,6 143,5 Sapwood, broad-ringed 937 69,7 35,0 28,4 114,7 Core, close-ringed 669 75,2 22,8 18,7 87,5 Core, broad-ringed 617 56,8 21,2 16,6 80,4 Sapwood, closeringed, 40 ° C Sapwood, closeringed, untreated 949 – 34,1 – – untreated pine 509 – 19,8 – – DIN 68364 520 45 – – – Kollmann 520 55 13…19…24 13…19…24 25…40…72 Sell 510…550 45…55 14…23 14…23 39…41 2.6 DAUERHOLZ flammability / fire performance DAUERHOLZ has been tested as regards its fire performance values in accordance with DIN 4102-1. Test results have established that DAUERHOLZ complies with the requirements of building material class B2 and can be regarded as having normal flammable properties. In the event of a fire, DAUERHOLZ can be extinguished using all standard fire extinguishing agents, albeit preferably powder or foam. 2.7 DAUERHOLZ non-slip properties Patio decking made of DAUERHOLZ has been tested to DIN 51130 (working areas with increased risk of slipping) and DIN 51097 (wet barefoot areas) in terms of its non-slip properties. On the basis of the test results obtained, DAUERHOLZ flooring can be allocated to evaluation groups R 11 to R 12 in accordance with the specifications outlined in DIN 51130 and evaluation groups B to C as per DIN 51097 as well as displacement class V6.
DAUERHOLZ flooring – independent of its profiles – is therefore also eminently suitable for areas with an increased risk of slipping and / or wet barefoot areas. 2.8 DAUERHOLZ environmental compatibility / emissions DAUERHOLZ solely comprises indigenous wood and wax. DAUERHOLZ does not contain any substances subject to marking or toxicity. No polluting substances or waste arise during the production of DAUERHOLZ. The wax used for hydrophobicity (water-repellent impregnation) merely comprises carbon and hydrogen, is very hard and pure, odourless and tasteless, insoluble in almost all substances (e. g. water but also sulphuric acid and nitric acid) and can not be mixed with water. It complies with the guidelines for use in the foodstuffs industry (e. g. as cheese rind or in the manufacture of jellybabies or lipstick). The wax melting point is approx. > 80 ° C with the result that DAUERHOLZ does not display any wax emissions, even at extremely high surface temperatures. 2.9 Sawing / Planing / Boring DAUERHOLZ DAUERHOLZ can be processed using all standard wood-planing tools, whereby tool wear is somewhat less than in the case of untreated wood. Depending on the processing intensity, the wax content in the wood can cause deposits on tools and machinery after some time which are easily removed using normal cleaning baths or resin removers. Owing to the wax content in the material, manual or automatic grinding of DAUERHOLZ is not possible with grinding belts or grinding tools and / or causes extensive wear on the part of grinding equipment. 3. Surface treatment DAUERSCHÖN + wood oil On account of its wax content, DAUERHOLZ may only be coated using the suitable surface materials approved for this purpose by DAUERHOLZ AG. The wood is UV-protected thanks to the DAUERSCHÖN + wood oil used for the initial coating. DAUERHOLZ also recommends annual application of DAUERSCHÖN + to retain the original shade of wood. Coloured coating materials can not be used on account of their poor adhesive properties. 4. Joining 4.1 Screwing / Nailing / Clamping DAUERHOLZ DAUERHOLZ can be easily joined with nails, screws and clamps. As a general rule, splitting strength is approx. 30 % higher than in the case of untreated wood with the result that joins are also possible near the edge. Nevertheless, we recommend pre-boring the material for screw diameters > 3 mm. DAUERHOLZ displays neutral features as regards joining elements, i.e. it does not promote corrosion. The use of stainless steel joining elements is however recommended in outdoor applications as only they comply with the long service life represented by DAUERHOLZ. Nor does the use of compressed air clamping devices present a problem although we do recommend the use of resin-coated expanding clips or screw nails as only these guarantee the requisite pull resistance and we also recommend advance testing under real application conditions. 4.2 Gluing DAUERHOLZ DAUERHOLZ can only be glued using special adhesives. We recommend Purbond HB S309 polyurethane glue. This recommendation does not however release the user from his obligation to confirm the suitability of adhesives for the respective application by means of independent testing. PVAC glues are not generally suitable for gluing DAUERHOLZ. 5. Storage and transport 5.1 Trade and building site DAUERHOLZ is a high-quality end product for outdoor applications. The transport packaging supplied in the factory is also of the same high quality. It is intended to protect the products from dirt and dust during transport as well as facilitate easy and safe transport. It does not however represent protection from mechanical damage, e. g. by forklift equipment. On the building site, the packaging foil should not be removed until shortly before the products are required. Owing to their very smooth surface, DAUERHOLZ products tend to slide inside the packaging. For this reason, loads must be suitably secured on the truck and packages must display multiple bindings. DAUERHOLZ is not a hazardous substance and is not therefore subject to any type of marking. 6. General 6.1 General safety and industrial safety During processing and treatment, DAUERHOLZ is subject to the same professional liability association safety specifications as untreated wood. This applies for both personal safety equipment during machine handling and the chip extraction process. On very smooth floors (e. g. industrial floors made of hardened concrete), DAUERHOLZ chips can represent an increased risk of slipping (similar to that of MDF dust). In such cases, we recommend the use of non-slip mats in the machine operating area. 6.2 PEFC certification DAUERHOLZ production and therefore the actual products were certified in accordance with the PEFC Standard within the framework of the audit performed on 11 September 2009. DAUERHOLZ only uses wood from PEFC-certified stocks. 6.3 DAUERHOLZ recycling/disposal DAUERHOLZ is classified as a bio-mass in accordance with § 2 of the Bio-mass Directive dated 21 June 2001. Accordingly, energetic application in a simple (< 1 MW heat input) or formal (> 1 MW heat input) firing installation subject to approval is possible at all times in accordance with the German Clean Air Act. In line with the Waste Index Directive dated 1 May 2005, DAUERHOLZ and/or products manufactured from DAUERHOLZ involve non-toxic treated used wood and are as such classified with the 030105 waste code and 03 specification. The Waste Wood Ordinance dated 15 August 2002 classifies DAUERHOLZ as waste wood category A II (treated used wood without halogens or wood protection agents featuring an extensive wood content). DAUERHOLZ does not therefore represent waste subject to any particular monitoring processes and can be exploited as both a material and in terms of energy. Dabel, March 2013 DAUERHOLZ AG
Page 1 and 2: ECOLOGICAL LONG-LASTING ATTRACTIVE
Page 3 and 4: TEAM Rüdiger Wulfram, Key Account
Page 5: PRO ObjEkT & ACAdEMy ProObjekt - th
Page 9 and 10: PROduCTS Terrace planking of DAUERH
Page 11 and 12: Bench slat of DAUERHOLZ „Fleesens
Page 13: dAuERFIX FUX FUX plus LIFT FLIP Pad
Page 16 and 17: INSTALLATION INSTRuCTIONS DAUERHOLZ
Page 18 and 19: dAuERhOLZ - GuARANTEEd GOOd ANd hAR
Page 20: REPLy FORM If you have any queries
Page 24: CONTACT DAUERHOLZ AG ADMINISTRATION

ECOLOGICAL LONG-LASTING ATTRACTIVE

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