Text of PLYfloor Installation Guide - Dindas
PLYfloorInstallation Guide2Trust PLYfloorTrust PLYfloor to be lightweight and easy to work with, kilo for kilo it s stronger than steel and it s available FSC chain of custody certified. Trust that PLYfloor will not only do the job, but do it well. Perfect for residential flooring but ideally suited for commercial floors that carry heavy and concentrated Easy to use lightweight and easy to handle on-site; plus no special tools required for installation Superior strength higher stiffness, strength and span than most other substrate systems Product protected available H2-S or H3 treated against fungal and termite attack and for use in external or wet areas Durable performance proven to perform structurally for at least 50 years Product quality Engineered Wood Products Association of Australasia Product Certified for peace of mind Environmentally sustainable available FSC Chain of Custody certified upon request for Green Star creditsFor on-site technical and product support freecall 1800 808 1313ldentification PLYfloor is manufactured and branded to comply with AS/NZS 2269: 2008, by Carter Holt carries the following branding: Manufacturers Name - Carter Holt Harvey The EWPAA Tested Structural Stamp - The word structural Australian Standard AS/NZS 2269 FL Flooring, CD is face and back visual grade A-Bond durable phenolic bond Stress grade F11 Panel Construction Code ie 15-30-5 Formaldehyde Emission class E0 If preservative treated, branding as per (eg 132 64 H3) Mill NoCompliance and standardsPLYfloor is manufactured under a third party audited quality control programme and is product certified by the Engineered Wood Products Association of Australasia (EWPAA) as compliant with AS/NZS2269 Plywood-Structural. For houses, PLYfloor is acceptable under Section 5 of : 2010. Table 2 on the following page contains floor loads for the typical applications as defined in : 2002. The plastic tongue has been tested and is suitable to support design concentrated live loads of kN for 15 mm to 21 mm thick PLYfloor and kN for 25 mm to the limitations and conditions in this brochure, the design thickness and frame spacings for PLYfloor meet the requirements of the Building Code of the time of despatch of the plywood, the moisture content anywhere within a PLYfloor sheet when determined in accordance with AS/NZS 2098 is between 8-15%.A better environmental choiceCarter Holt Harvey ensures that its wood is legally sourced from managed forests and offers FSC Chain of Custody certified product upon request for Green Star points. PLYfloor achieves less than formaldehyde (equivalent to E0) emissions from the final product. TreatmentPLYfloor is available H2-S or H3 treated to for protection against rot, fungus and termites. Users should check to ensure all treated material is branded with treatment information, chemical supplier precautions are followed for health and safety and directions are followed to maintain envelope wetting and construction time Some materials used in floors will not withstand exposure to weather. Untreated plywood will withstand rain and exposure during normal construction periods. Some discolouration and minor checking of the surface can be expected if plywood is exposed for extended periods. For floors expected to be uncovered for long periods (greater than 3 months), H3 LOSP treated plywood can be used to reduce the risk of decay. Return the plywood to less than 18% moisture content before installing moisture sensitive materials. Where a high quality visual finish is required, PLYfloor should be protected with a cover or sealed. In applications where the moisture content of wood may exceed 18% for prolonged periods, plywood must be treated as a minimum to the H3 hazard class to resist decay. This includes excessive ground dampness and plywood that may be subject to condensation. Appropriate building detailing and ventilation is is suitable for use in decks when fully protected from moisture exposure by a properly detailed and installed impervious water-proof membrane. In addition the plywood shall be preservative treated to a minimum H3 hazard class level to : 2010. PLYfloor is not recommended for use in permanently exposed verandahs or area flooringFloors in bathrooms, laundry spaces, kitchens and garages may be exposed to water occasionally. Use H3 LOSP treated plywood where the exposure is likely to be regular or uncontrolled. For rental accommodation, motels and commercial residential floors, H3 LOSP treated PLYfloor is recommended. Refer EWPAA Tongued and Grooved Residential Flooring brochure for guidance on installation floorsThe Type A (Marine Grade) glue bond and solid wood veneer in PLYfloor will withstand floor heating systems. Tight moisture content control during construction is recommended to avoid shrinkage problems in both framing and and purposePLYfloor is a strong, durable pre-sanded panel available in a range of standard thicknesses from 15-25 mm and is ideally suited for use in residential and commercial floors. PLYfloor has machine grooved long edges with a plastic tongue to form a tongue and groove joint between detailsFloor joist spacingsTable 2Product Identification Code Nominal Thickness (mm) Grade Length (mm) Width (mm) Coverage per Sheet m2 Sheets per Pack Weight per Sheet Approx kg 15-30-5 15 mm CD2400 1200 35 24 2700 1200 35 27 17-24-7 17 mm CD 2400 1200 32 26 2700 1200 32 30 19-30-7 19 mm CD 2400 1200 28 30 2700 1200 28 34 21-30-7 21 mm CD 2400 1200 25 33 2700 1200 25 38 25-30-9 25 mm CD 2400 1200 20 39 2700 1200 20 44 PLYfloor product rangeTable 1Australian Loading Code Description AS 1170:2002House and Residential BedroomsDining , Communal, Assembly, ClassroomsInstitutional AssemblyPublic Assembly, Corridors, Stages, Kitchens, Laundries, File RoomsOffices, Retail Sales, General Storage, LibrariesDrill Rooms, Halls, Cold StoragePlywood thicknessMaximum Joist centres (mm), plywood continuous over a minimum of two spans, face grain across actual spacings to suit 2400 or 2700 mm sheet Basic Distributed Live load (kPa) Concentrated Live Load (kN) Basis:1. Design in accordance with AS Timber Structures Part 1: Design Loads distributed on an effective panel width in accordance with EWPAA Spacings determined to meet a Deflection Limit of Span / 200 (EWPAA Method).All thicknesses are suitable for domestic or commercial flooring on-site technical and product support freecall 1800 808 1315FACE GRAINAABBJOIST , 480 OR 600 MM CENTRES FOR 2400 MM SHEETS450, 540 OR 675 MM FOR 2700 MM SHEETSPLACE END JOINTS OVER JOISTSBLOCKING NOT NORMALLY REQUIRED ON BLUE TONGUE EDGES (REFER TO INSTALLATION NOTES)ALL PANELS CONTINUOUS OVERAT LEAST TWO SPANSInstallationPLYfloor flooring layoutDetail 1Framing Select joist spacings to match PLYfloor thickness and loading conditions from Table 2. Ensure top edges of joists are properly aligned. Use designIT software, available free from Carter Holt Harvey, to simply and quickly specify bearers and floor joists in kiln dry LASERframe structural timber, hySPAN Structural LVL or hyJOIST Engineered I-Joists. Also available TERMINATOR termite protected. Blocking within the body of the floor is not required to support tongue and grooved edges. Blocking (nogs) may be required to: - Block all edges of standard square edge ECOply structural plywood. - Block if the floor is being used as a diaphragm for lateral wind and earthquake resistance with fixings to transfer shear across the joints. In this case, details should be specified on drawings. - Use blocking on the flat to provide gaps where air flow is needed for ventilation. Sheet layoutRefer to Detail 1. Place face grain at right angles to the supports. Sheets must be continuous over at least two spans (three framing members). Lay the sheets in a staggered pattern. Allow a 2 to 3 mm expansion gap between sheets for square edges and 1 mm for tongue and grooved edges. Butt tongue and groove panels at the tongues because the machined edges can accommodate the movement. Allow expansion gap at the ends. Panels should be pushed together lightly by hand, cramping is not recommended. Allow 5 mm clearance inside confining structure such as concrete or brick walls adjacent to the floor. Allow clearance for ventilation as required. 6Minimum fastener specificationTable 4Timber framingScrews in steel framingPlywood thicknessNails (length, diameter)Screws (gauge, root diameter, length)Steel thickness approx. mmSteel thickness mm and over12 and 15 mm50 x mmNo 8g x 4010-16 4510-16 4517 mm60 x mmNo 10g x 4010-16 4514-20 4519 to 21 mm60 x mm No 10g x 4510-16 4514-20 4525 mm75 x mmNo 10g x 5010-16 4514-20 45PLYfloor and insulation optionsDetail 2For ground floors requiring insulation foil, draped foil prevents the use of adhesive, and increases the quantity of foil required to achieve insulation performance. In practice, gaps provided by the draped foil are often inadequate. The best performing solution is to either use R-PLYfloor with insulation pre-glued to the underside of the CLADDING5 MM CLEARANCEFLOOR PRELAID (ON EITHER INSULATION SYSTEM)5 MM BEAD OF ELASTOMERIC CONSTRUCTION ADHESIVE FOR MINIMAL SQUEAKINGFOIL STRETCHED FLAT TO GIVE OPTIMAL AIR GAP FOR SUPERIOR INSULATIONSTRIPS OR SHEETS OF PALLET GRADE NON-STRUCTURAL PLYWOODFLOOR INSTALLED AFTER WALL PLATES(ON EITHER INSULATION SYSTEM)FOIL MUST BE DRAPED SUFFICIENTLY TO GIVE A REASONABLE AIR GAP5 MM CLEARANCECLADDINGFloor insulationflooring sheet, or glue-nail the floor to increase stiffness and minimise squeaking, and stretch the foil flat under the joists. Use timber sheets or strips of a low grade of non-structural plywood (7 mm pallet grade) to fix the foil to the underside of the floor. Alternatively, use foil backed panels under the floor or a different type of insulation such as calculate the insulation properties of R-PLYfloor when installed, refer to the Carter Holt Harvey R-Value floor calculator online. Download the R-Value calculator on-site technical and product support freecall 1800 808 1317Fixing of sheetsPLYfloor may be fixed to different types of framing with nails or screws or a combination of fasteners and elastomeric adhesive. Do not over-drive gun-nails or screws. Fix at least 7 mm or 3 fastener diameters from the sheet edges or behind tongues. Fix no more than 15 mm from sheet edges. Space fasteners at 150 mm centres on all edges, and 300 mm centres in the body of the sheet. Fasteners should be corrosion resistant to a level appropriate to the end use, life expectancy and expected exposure to moisture during construction and service. Galvanised fasteners are the minimum recommendation and are normally satisfactory in dry wood. Where plywood or framing may become damp or is H3 treated, use stainless steel (316) or silicon bronze flathead nails or countersunk screws to avoid corrosion in unpainted sheets for maximum durability. Follow the recommendations of the fastener to timber Galvanised nails or annular grooved nails have better holding power than plain shank nails of the same diameter. Ring shank nails or annular grooved nails or screws are recommended for additional holding power. Stainless steel nails must be annular grooved. Flush drive nails and apply floor sealant before coating holes with suitable putty. Fixing to steel Fix directly to roll formed steel (up to 2 mm thick) with self drilling, self tapping screws. If plywood gets damp and expands, screws in thicker steel may break. Keep plywood dry or use larger screws, or: Bolt or screw battens to the steel and apply plywood as above for timber. Adhesives Elastomeric (construction) adhesives should be used with nails to minimise floor squeaking. Use a bead of structural elastomeric adhesive in accordance with the manufacturer s instructions. Apply pressure using the standard nail pattern. FinishingPaints and coatings should be applied following the manufacturer s instructions. Avoid heavy sanding that may remove the critically important structural face veneer. For floor coverings and roofing, adhesives must be compatible with LOSP treatment salts in H3 treated panels. Compatibility can often be improved by lightly washing, scrubbing and drying the plywood surface prior to and handling Keep dry. Store under cover (avoid tight cover and potential condensation). Handle and stack with care to avoid damage. Stack flat clear of ground on at least three evenly spaced bearers. VentilationSub-floor areas must be ventilated in accordance with the relevant clause of the Building Code of Australia. Use H3 treated PLYfloor where moisture levels in sub-floor regions are high. Material Safety Data Sheets Material Safety Data Sheets (MSDS) are available from the website or call for technical support on 1800 808 PLYfloorDetail 37715152-3 MM EXPANSION GAP(= ONE NAIL DIAMETER)SQUARE EDGE JOINTONGUE AND GROOVE JOINNAILS OR SCREWS AS IN TABLE 3MACHINED EXPANSION ALLOWANCE IN MM EXPANSION GAP June 2011 Registered Trademarks of Carter Holt Harvey Wood Products Australia Pty Limited ABN 93 002 993 106. Date of Publication June 2010 iezziE992Available from:Technical Support1800 808 our plywoodSave time and money with better supportFast technical support 1800 808 131For quick, clear product answers, our technical support phone line 1800 808 131 links you to our expanded, engineering support team. Our experienced support team can assist with enquiries ranging from sizing and design to installation s fast, easy and it s thinkingOur timber products are a better environmental choice for building. They re natural, renewable and Australia s leading timber and engineered wood products supplier, Carter Holt Harvey is committed to conserving the natural environment and actively protecting Australia s flora and Holt Harvey ensures that all timber is legally sourced from sustainably managed forests. Production uses natural resources efficiently and actively minimises waste. Plywood Mill upgradeOur Myrtleford facility has been redeveloped to be a world-class plywood mill. By utilising state of the art technology, this upgraded mill ensures our plywood business is competitive and sustainable into the future. The facility is now more energy efficient, produces less emissions, and has lower water usage and better air quality. And ultimately provides better, more sustainable products.