3a.-Prima-Plank-Technical-Manual

Technical Manual plank™



Contents plank™ Designed to attain pure luxury Aesthetic Cladding | Decorative Fencing | Gable End Cladding | External Wall Cladding | Fascia Board | Decking | Flooring | Ceiling | Eaves Lining 1. Introduction 03 1.1 General 03 1.2 Applications 04 1.3 Features & Benefits 1.4 Tests and Certification 07 2. General Fixing Instructions 2.1 Material Selection 2.2 Framing Specification 2.3 Batten Specification 2.4 Fasteners 2.5 Sealing Joints & Gaps 2.6 Jointing Against Other Materials 3. External Wall & Gable End Cladding 3.1 General 3.2 Framing Construction 3.3 Flashing 3.4 Sarking 3.5 Plank Overlaps 3.6 Installation Procedures 3.7 Fixing to Timber 3.8 Fixing to Steel 3.9 Joints 3.10 Ground Clearance 3.11 Corners 3.12 Details at Openings 4. Cladding to Masonry Wall 4.1 General 4.2 Battening Requirement 4.3 Installation Method 4.4 Sarking 4.5 Jointing 4.6 Corners 4.7 Openings 4.8 Wall to Eaves Junction

Contents plank™ Designed to attain pure luxury Aesthetic Cladding | Decorative Fencing | Gable End Cladding | External Wall Cladding | Fascia Board | Decking | Flooring | Ceiling | Eaves Lining 5. Fascia Board 09 5.1 General 5.2 Support 10 5.3 Installation 11 5.4 Joints 13 16 6. Decorative Fencing 16 6.1 General 6.2 Framing Requirememt 6.3 Installation 7. Ceiling & Eaves Lining 7.1 Genaral 7.2 Framing Requirememt 7.3 Installation 8. Decking / Flooring 8.1 Genaral 8.2 Framing Requirememt 8.3 Installation 9. Finishes Recommendation 10. Working Instructions 10.1 Cutting 10.2 Drilling 10.3 Handling & Stroage

1 Introduction 1.1 General 1.4 Tests and Certification plank™ meets the national & international fibre cement plank™ is an autoclaved cellulose fibre reinforced cement siding standards, namely MS 1296, ISO 8336, AS/NZS 2908.2, BSEN 12467 board manufactured by Hume Cemboard Industries Sdn Bhd, an ISO and ASTMC 1186. 9001 and ISO 14001 certified company. Manufactured from Portland cement, cellulose fibre, finely ground sand and water, plank™ has 1.4.1 Serviceable Life become extremely popular when a relatively maintenance free When installed and maintained as per good building practice and timber planking appearance is desired. specifications described in this manual, plank™ is expected to 1.2 Applications have serviceable life of 50 years. plank™ is designed for external applications where superb 1.4.2 Standard Sizes and Mass weatherability and long-lasting durability form part and parcel of performance criteria. These applications includes:- plank™ comes in standard thickness of 7.5mm, 9mm, 12mm, 16mm and 25mm. It is available in three patterns: • External wall cladding plank™ - Smooth • Gable end cladding is available with a flat unsanded • Aesthetic cladding surface • Fascia board • Gate and fencing • Ceiling • Skirting • Floor and Decking plank™ is used where there is a requirement for traditional timber plank™ - Woodgrain look and to add character and depth to flat mundane surfaces. has an enhanced timber texture on the front surface 1.3 Features & Benefits • Natural timber look plank™ - Timbergrain • Weather resistant is straight grain timber texture, • Will not rust or rot available on one surface or two surfaces • Termite resistant • Does not warp or twist • Fire resistant- Class 'O' • Aesthetically Pleasing • Environmentally Friendly 2 General Fixing Instructions 2.1 Material Selection Framing components must have adequate durability for the intended use. These durability criteria shall among others include resistance to plank™ thickness should be selected based on the intended weather; corrosion and pest (i.e. termite attack). applications. For general cladding, fascia board and fencing applications, 7.5mm thick plank is adequate. When higher Framing timber should be thoroughly dry and selected to minimize shrinkage when planks are installed. performance (stronger and more impact resistant) material is desired, use 9.0mm or thicker plank™. For best result, the use of 9.0mm thick plank™ is highly recommended Steel framing must be fabricated from cold-formed galvanized light gauge steel or zincalume steel of a minimum 0.55mm to 1.60mm for fascia board application where rafters are to be exposed (in base metal thickness. absence of eaves lining board). Refer to plank™product brochure for information on applications As the straightness of finished wall is highly dependent on workmanship of framework, best result can be achieve when frame based on product thickness, standard length and width dimensions straightness is between 3mm to 4mm in any 3000mm length. and texture profile. Trimming plank to a size less than the standard width will reduce its 2.3 Batten Specification capacity to withstand loads. In instances where reduced-width planks are desirable such as for fencing application, always refer to Hume Thick hot rolled structural steel sections and masonry wall must be Cemboard before specifying or applying them. battened prior to installation of plank™ cladding. Do not apply plank™ in areas where it remains in contact with Use timber batten with a minimum of 25mm thick x 50mm wide to standing water. allow adequate nail penetration. 2.2 Framing Specification Steel battens must have a minimum 35mm face width. They are plank™ can be applied to timber or light gauge steel framing typically 'Z' or top hat sections. Use only galvanised light gauge steel / zincalume of a minimum 0.55mm to 1.60mm base metal thickness. members. Construction shall be in accordance with local building practice. 03

2.4 Fasteners Drive screw slightly below the plank face and cover fastener head Select the appropriate type of fasteners based on the type of framing. Fasteners should have acceptable level of durability and be suitably with exterior grade jointing compound jointing compound . coated for the intended application. Smoothen with sandpaper if necessary before painting. At least class 3 external grade finish fasteners must be used for 2.5 Sealing Joints and Gaps external applications. Gaps at plank joints, corners and openings must be sealed with flexible/ paintable polyurethane sealant. Sealant must be compatible Fasteners must be compatible with all materials that they are in with cementitious panel products. Apply masking tape at both plank contact with to ensure the durability & integrity of the system. edges and start filling the bottom edge and squeezing the sealant in the upward direction. Use spatula to smoothen and remove any plank™ can be fixed by hand nailing or air gun nailing. For screw excess sealant Remove masking tape immediately upon completion. fixing, use screw gun with high torque and variable speed of zero to Sealant manufacturer's instruction must be adhered to. Sealant must 2,500 revolution per minute fitted with a depth control attachment. only be painted as recommended by the manufacturer. Nail head should finish flush with the plank™ face and avoid 2.6 Jointing Against other Material overdriving. When butt jointing plank™ and other building materials such as masonry wall, a minimum of 6mm gap must be provided. Seal gap Table: Fastener Specification with paintable/ flexible sealant, as shown in Figure 1. Fasteners to Timber Fasteners to Steel masonry wall 2.8mm Ø x 30mm Galvanised Nails Self-embedding head, self-drilling 2.8mm Ø x 40mm Galvanised Nails (for plank thickness 16 & 25mm) “Wing Teks” Screws for fastening to 0.55mm to 1.60mm BMT steel frames No.8 X 1 1 (28mm) for plank 8 thickness ≤ 12mm No.8 X 1 1 (32mm) for plank 4 thickness - 12mm & 16mm No.8 X 1 3 (44mm) for plank 4 thickness - 25mm apply sealant Note: 6mm vapour permeable sarking/ 1. Drive nail head snug or flush with plank face. building paper (optional) 2. Pre-drilling is required when nailing between 20mm to 50mm from plank™ the plank end. 3. Drive screw heads not more than 1mm below plank face. cladding 4. Overdriven fastener point should be cover with exterior grade Figure 1: Jointing with other material jointing compound before painting. 5. Hold plank firmly against the frame while driving the fasteners. 3 External Wall & Gable End Cladding nogging mineral wool/ fibreglass tsotupdpla6tc0ee0nmtrmesms6t0au0xmdimmspuam6c0i0nmgm insulation (optional) 3.1 General plank™ is suitable for general wall cladding application when a 600mm vapour permeable sarking/ building paper (optional) lightweight wall system is preferred. The usage includes construction of new buildings such as residential dwellings and resorts. In addition, end joints to be staggered (refer joint detail options) plank™ can also be used for renovation/ extension of existing buildings especially in the construction of upper storey. plank™ 3.2 Framing Construction cladding plank™ must be supported at 600mm maximum centres. Refer Figure 2. The minimum stud face width shall be as follows:- ground clearance • Timber framing - 50mm min. flashing • Steel framing - 35mm min. starter strip Timber framing is typically 50mm x 75mm and light-gauge metal framing is typically 35mm x 64mm x 0.55mm BMT. Figure 2: Horizontal planking When on-stud jointing is preferred, stud face width must be increased to provide for adequate edge fixing distance. Use frame off-cuts to pack stud at plank joint if required. 04

3.3 Flashing 3.7 Fixing to Timber When applied as external wall cladding it is a good building practice to apply flashing material at corners, above the head and under the When applied onto timber framing, plank™ must be nailed at sill of an opening. centre of overlap through both thicknesses, as shown in Figure 4. 3.4 Sarking During windy condition, the external pressure would generally be greater than the building's internal pressure. The pressure differential vapour permeable sarking/ building paper (optional) will likely draw water into the wall cavity through the plank's joints flat head nail fixed at and laps. It is recommended to install vapour permeable sarking centre of overlap between plank™ and the framing surface. The use of reflective 12mm min. sarking will enhance the thermal insulation property of the cladding system. 3.5 Plank Overlaps plank™cladding For external cladding applications, plank must overlap the previous course by a minimum of 25mm. Plank overlap may be increased to achieve the desired exposed plank surface. Higher overlaps may also improve the weatherproofing of a framed-wall particularly when sarking material is not applied. When necessary, overlap may be increased to obtain full-course planking to match the wall height. To facilitate plank installation with consistent overlaps, use a lap gauge. A lap gauge can be fabricated from plank™off-cuts or timber piece. Refer Figure 3. 3.6 Installation Procedure 25mm min. overlap These steps provide a general guide for installation of plank™. 1. Ensure framing is true and align prior to fixing plank.™ internal lining board 2. Apply building paper sarking over the framework. ( liner™/ flex™) 3. Fix flashing at all internal and external corner and heads of openings such as door and window. Figure 4: Fastening to timber frame 4. Install timber moulds at internal and external corners. 5. Secure a 40mm wide plank™starter strip or treated timber strip along the bottom plate. 6. Use a spirit or water level to locate the top edge of the first 3.8 Fixing to Steel Planks are screwed to light gauge steel framing through the top course of the plank plank only. Refer Figure 5. 7. Drive a series of guide nails around the perimeter of the timber framework to indicate the top edge of the first course of the plank. 8. Fix the first plank starting from the external corner. Set the top vapour permeable sarking/ building paper (optional) edge of the plank flush against the guide nails and the end abutting the (moderate contact) timber corner stop. Drive fastener to the bottom plate through the plank thickness and the starter strip at 200mm centres maximum. 9. Fix the balance of the planks of the first course around the building. Planks may be joined with proprietor PVC jointer. 25mm min. overlap 10. Provide a minimum of 25mm overlap between each successive plank™ cladding plank course. Measure the total wall height to be clad and screw fixed through the top plank only calculate the suitable overlap so that a near full-width plank finishes at the top of the clad wall. Remove the guide nails and continue the next course of the plank with an off-cut plank. This is done to ensure that the plank joints would be staggered between courses. 11. Check level occasionally. 7.5mm new/ subsequent plank course sarking/ building previous course 25mm min. overlap stud internal lining board 7.5mm ( liner™/ flex™ x= net cover width (plank width - overlap) Figure 3: plank™ Lap gauge Figure 5: Fastening to steel frame eg 230mm - 25mm = 205mm 05

3.9 Joints internal lining board plank™ cladding Joint options are shown below. When applied as wall cladding, plank ( liner™/ flex™ joints should preferably be staggered between each plank course. vapour permeable sarking/ damp-proof course building paper (optional) plank™ \"off-stud\" jointing method incorporates proprietary PVC or flashing jointer between plank ends. Refer Figure 6. exterior grade timber or fibre cement trim stud vapour permeable sarking/ 150mm min. clearance building paper (optional) concrete slab PVC jointer Figure 8: Ground Clearance plank™cladding 3.11 Corners Internal and external corners may be finished with timber stops as illustrated in Figure 9. Figure 6: Off-stud joint internal lining corner studs On-stud jointing can be done by butt jointing plank ends with moderate contact. Alternatively, provide a nominal 3mm gap and seal vapour permeable sarking/ joint with exterior grade paintable/ flexible sealant. Refer Figure 7. building paper (optional) flashing (not required when reflective sarking is used) plank™ cladding 25 x 50mm timber stop trim-packing for narrow stud as required External Corner 25 x 25mm timber stop (at plank joint only) vapour permeable sarking/ Figure 9: Timber stop corners Internal Corner building paper (optional) 3mm gap Alternatively, when timber posts are utilized, plank ends abutted to nailing to support (pre-drilling the side of the posts. Refer Figure 10. when nailing between 20mm to 50mm from plank end) stud moderate contact or allow timber post 3mm gap and seal gap with paintable/ flexible sealant plank™cladding plank™cladding Figure 7: On-stud joint 3mm gap (apply sealant) vapour permeable sarking/ building paper (optional) 3.10 Ground Clearance External corner Provide a minimum of 150mm clearance between bottom edge of plank (or starter strip) and the earth as shown in Figure 8. internal lining Internal corner Figure 10: Timber post corners 06

3.12 Details at Openings internal lining board flex™ ) When applying plank at around window or door openings, allow an approximately 5mm clearance at the sill, jamb and head. Seal gap ( liner™/ with paintable/ flexible sealant Do not apply sealant between head flashing and plank edge. 5mm gap optional vapour permeable plank™cladding lintel between plank sarking to lap over flashing architrave and flashing head flashing vapour permeable sarking/ 5mm clearance backing piece as required building paper (optional) around opening nominal 5mm clearance (apply sealant) window frame (do not apply sealant) minimum 25mm thick window trim head flashing plank™cladding window frame full plank width is recommended Figure 12: Head Flashing Detail Figure 11: Window/ door opening detail window frame window frame sill flashing backing piece as required vapour permeable sarking/ architrave building paper (optional) architrave internal lining board flex™) plank™cladding backing piece as required ( liner™/ internal lining board nominal 5mm plank™cladding clearance ( liner™/ (apply sealant) vapour permeable sarking/ flex™ building paper (optional) Figure 13: Sill Flashing Detail Figure 14: Door/ window jamb detail 4.1 General 4 Cladding To Masonry Wall plank™ can be clad onto masonry wall to enhance the aesthetic Battens can be applied directly onto relatively flat/ even masonry appearance of residential or commercial buildings. wall. Refer Figure 15. Provide spacers or brackets when battening uneven masonry wall as 4.2 Battening Requirement shown in Figure 16. Alternatively, sub-framing may be installed horizontally to uneven surface at approximately 1500mm maximum Masonry wall must be battened prior to applying plank™ . Battens interval before securing the battens. All framing components must be adequately secured onto masonry wall. Consult a qualified engineer must be spaced vertically at 600mm maximum centres. Ensure to verify structural adequacy if required. batten's straightness is within the acceptable tolerance. Battens must 07 be adequately fastened onto the masonry wall. 4.3 Installation Method plank™ may be installed horizontally. In any case, support must be provided at 600mm centres. lnstallation method is similar to that of external cladding application.

masonry wall masonry wall vapour permeable sarking/ vapour permeable sarking/ framing spacer or building paper (optional) building paper (optional) bracket at 1200mm centres timber/ steel batten installed vertically at 600mm max. centres timber/ steel batten installed vertically at 600mm max. centres plank™ cladding installed horizontal plank™ cladding installed horizontal Figure 15: Battening onto flat masonry wall Figure 16: Battening onto uneven masonry wall 4.4 Sarking masonry wall It is recommended to install a vapour permeable sarking material on the masonry wall prior to fixing battens. vapour permeable sarking/ building paper (optional) 4.5 Jointing timber/ steel batten installed Planks can be jointed with PVC jointer or Butt Joined. These jointing vertically at 600mm max. centres methods are similar to the external cladding joints shown in Figure 6 & 7. plank™ cladding 4.6 Corners nominal 5mm clearance (apply sealant) Internal and external corners can be decorated with exterior grade in-situ concrete or pre-formed coping timber trim. Trim can also be fabricated using plank™ cladding, to architect’s approval cut to the desired width. Refer Figure 17. window frame External Corner Figure 18: Window head detail masonry wall window frame exterior timber or in-situ concrete or fibre cement trim pre-formed coping to architect’s approval plank™cladding nominal 5mm clearance vapour permeable sarking/ internal Corner (apply sealant) building paper (optional) vapour permeable sarking/ building paper (optional) Figure 17: Corner details plank™ cladding 4.7 Opening masonry wall Door or window opening may be finished with trims. Provide Smm Figure 19: Window sill detail gap between plank™and trims around the opening as described in Figure11. When desired, opening may be decorated with in-situ concrete or pre-formed coping as illustrated in Figure 18, 19 and 20. 08

4.8 Wall-to-Eaves Junction window frame Provide adequate ventilation between masonry wall and plank™ masonry wall cladding. The ventilation can either be provided through the roof or vapour permeable sarking/ below the eaves. Ventilated path though the roof is depicted in building paper (optional) Figure 21 below. plank™ fascia board ventilation through soffit/ roof liner™/ flex™ eaves lining board masonry wall masonry wall vapour permeable sarking/ building paper (optional) in-situ concrete or plank™cladding pre-formed coping to architect’s approval plank™cladding nominal 5mm clearance (apply sealant) Figure 20: Window jamb detail timber/ steel batten installed vertically at 600mm max. centres Figure 21: Wall ventilation detail 5 Fascia Board Introductions rafter/ truss at 600mm centres plank™fascia board roof batten 5.1 General fastener plank™ superior durability makes it a perfect choice for fascia board fa3s0te0nmemr amt ax. around the roof perimeter. With the choice of various surface texture, PVC mould (to be located not plank™ fascia board is not only aesthetically pleasing but also more than 150mm away from rafter/ truss in absence of eaves lining batten) cost effective. timber beading as required eaves 5.2 Support lining batten/ support plank™ fascia board is normally fixed to timber or metal rafters/ flex™eaves lining board *PVC mould is available for trusses with spacing not exceeding 600mm centres. When support 7.5mm thick plank only spacing exceeds 600mm, provide a continuous battening behind the fascia board. Alternatively, a 'dummy' rafter/ truss should be provided Figure 22: PVC joint (Timber frame) as intermediate support. The use of 9mm thick plank is highly recommended when support spacing is more than 600mm centres. 5.3 Installation Apply a minimum of 2 fasteners at each rafter or truss end. Drive fastener 12mm from plank edge and 50mm from corner. Fix a metal angle capping at ends of metal rafters/ trusses to facilitate plank™ fascia board installation as described in Figure 23. Fixings of attachment (such as bracket for gutter) to fascia board must be connected to the roof structural element. 5.4 Joints Planks can be jointed with PVC jointer or Butt Joined. Provide 3mm gap if joint is to be sealed. These jointing options are shown in Figure 22 & 23. When Off-support Joint without PVC jointer is preferred, provide additional metal/ timber backing piece behind the fascia board. Ensure planks are secured to the backing piece. Hold backing piece firmly while driving the fasteners. 09

metal rafter/ truss at backing piece plank™ fascia board 600mm max. centres 12mm min. 50mm min fastener 3mm gap sealed with flexible/ paintable sealant butt joint (moderate contact) timber beading as required flex™eaves lining board Figure 23: Butt joint & sealant (Metal rafter/ truss) 6.1 General 6 Decorative Fencing plank™can be incorporated in the construction of conventional gap to architect masonry, timber or steel framed fencing for medium to high-end approval terrace houses as well as semi-D or bungalows. 30mm min. 6.2 Framing Requirement Framing durability must satisfy the minimum requirement of the Horizontal Section intended use. It is recommended to use exterior grade (treated timber) or steel hollow section to form the support. Steel hollow plank™fencing applied vertically section must be suitably coated to resist external weather. gap to architect 100mm max 6.3 Installation approval overhang plank™ can be installed vertically or horizontally. In any case, 610mm max. 30mm min. support must be provided at 400mm centres maximum. Install from edge fasteners approximately 30mm from edge and 50mm from corner of plank. Fix at least 2 fasteners at each support. masonry wall plank™ ends must not overhang (cantilever) more than 100mm 100mm max timber/ from the support. overhang steel frame The following fasteners are suitable if it is desired to have screw heads exposed:- • Timber Support: Use No.10 x 30mm Hexagon head, Type 17 point screws • Steel support: Use No.10 x 25mm Hexagon head, self-drilling point screws Refer to screw manufacturer's instruction on the minimum screw penetration to framing member: Front Elevation Figure 24: Vertical fencing 10

timber/ steel frame at plank™fencing applied horizontally timber/ steel frame 400mm max.centre 610mm 30mm min. gap to architect max. from edge approval Horizontal Section masonry work gap to architect approval Figure 25: Horizontal fencing Front Elevation 7 Ceiling and Eaves Lining 7.2 Framing Requirement 7.1 General Light gauge galvanized steel C-section with standard size 50mm x plank™ 9mm with 2 sided V-edge profile in ‘Smooth’, 35mm x 0.50mm BMT is used as the metal framing for ceiling hanger ‘Woodgrain’ or ‘Timbergrain’ surface texture is always the preferred choice as alternative to the wood plank as the ceiling lining which and ceiling joist. plank™must be supported at 407mm maximum provides the warmth and beauty of natural timber looking ceilings. It is not only durable but environmental friendly comparing by using centres, refer Figure 26. Ensure the ceiling joists are reasonably flat traditional forest timbers. and level prior the plank installation. 100mm Light gauge galvanised steel c-channel at Ceiling hanger at 900mm max c/c 407mm max c/c (Light gauge galvanised steel c-channel (0.50mm min base metal thickness) 0.50mm base metal thickness) Light gauge galvanised steel U-channel (0.50mm min base metal thickness) 407mm max. c/c 100mm 75mm / 100mm (W) x Figure 26: Typical 900mm max. c/c 3660mm (L) x 9.0mm (T) plank™Ceiling Layout plank™V-edge 11

7.3 Installation Install plank™ 9mm across the ceiling joist in a staggered All fastener heads must be covered with jointing compound with pattern. Fasten the plank onto ceiling joist by using the self-drilling 10% cement mixing ratio. Clean dust out of holes to ensure adhesion self-embedding head wing tek screw ( fastener - Wing Tek 28mm C1 ) of joint compound. with 407mm fasteners spacing as shown in Figure 27. The screws are The plank™ is generally installed with butt jointing plank ends with moderate contact as shown in Figure 28. fastened at the centre of the plank. For plank width joint area, the screws are fastened 12mm minimum from the plank edge, refer Figure 27 Detail A. If the plank width edges fall at the off-stud jointing, a light gauge steel nogging is placed on top of the edge joints. Fasten the plank to the nogging accordingly. 75mm / 100mm (W) x Ceiling joist @ 407mm c/c 3660mm (L) x 9.0mm (T) Staggered joint plank™V-edge 12mm 407mm max. c/c plank™ceiling installation Figure 27: Butt joint with moderate contact 75mm / 100mm (W) x 3660mm (L) x 9.0mm (T) plank™V-edge Figure 28: Joint Detail 12

8 Decking / Flooring 8.1 General plank™ Decking, offering choices of Smooth and Timbergrain steel hollow section with maximum BMT 1.6mm. It is the textures and with light chamfer at length edges, is ideal for decking responsibility of structural engineer to ensure the framing system in and flooring applications. It is the best substitution to natural timber which plank™ decking will be laid on will perform under the decking for commercial and residential buildings and can be used for design load. interior and exterior applications. plank™ Decking can be applied The decking or flooring joist or frame spacing shall be determined by loading requirements and comply with local building regulations. In on the steel frame and direct to the floor slab. For thickness 12mm, it all cases, the joist spacing must not exceed 610mm centres. Refer table below for the load selection table for recommended joist is recommended to be laid directly to the floor slab. spacing based on plank thickness. 8.2 Framing Requirement The steel framing system is generally fabricated using light gauge galvanized steel C-section with BMT 0.75mm to 1.6mm BMT or mild Table: Plank Thickness vs Load Selection plank™ Joist Spacing @ 305mm c/c Joist Spacing @ 407mm c/c Joist Spacing @ 610mm c/c Thickness 16mm UDL CL UDL CL UDL CL 25mm 19.2 kN/m2 4.2 kN 9.0 kN/m2 2.3 kN 2.5 kN/m2 1.0 kN 1957 kg/m2 428 kg 917 kg/m2 234 kg 255kg/m2 102 kg 43.3 kN/m2 9.5 kN 20.5 kN/m2 5.3 kN 5.9 kN/m2 2.3 kN 4414 kg/m2 968 kg 2090 kg/m2 540 kg 601 kg/m2 234 kg Note: How to use table above: • UDL = Uniformity Distributed Load; CL = Concentrated Load Step 1: Determine the actual application of the deck system (i.e. House, Institutional • Bending strength for • Modulus of Elasticity for plank™16mm & 25mm is 16 N/mm2 Buildings, Offices etc) Step 2: Refer to Malaysia Uniform Building By-Law (UBBL) for the minimum UDL and CL plank™16mm is 6000 N/mm2 and 25mm is for the intended application. 4000 N/mm2 Step 3: Determine the type of finishing material to be applied on the decking, the • Minimum factor of safety is 3 has been factored in • Allowable maximum deflection is limited to L/250 of joist spacing weight of this material must be added to the UDL value obtained in Step 2. • Concentrated load is applied over 300mm x 300mm area Step 4: Select the suitable joist spacing that meets the minimum UDL (plus weight of finishing materials) & CL stated in Step 2. Metal framing system is not required for plank™decking direct installation to concrete slab. 8.3 Installation Use self-embedding head self-drilling wing tek screw to fasten the 8.3.1 On Metal Framing board to the frame according to Figure 30. Other fasteners can be Ensure the framing system is designed and constructed in used but might require pre-drilling. The fastener points to be accordance with applicable building standards and acceptable covered with jointing compound with 10% cement mixing ratio or building practices. Floor joists must be true and level. Lay plank™ can be left un-covered which corrosion resistance at least Class 3 decking in staggered position across the floor joist, refer Figure 29. fasteners are required. 150mm x 3660mm x 25mm thick Self embedding head Self drilling screws plank™V-edge installed in staggered position 12mm 25mm Mild steel hollow section Staggered joint or light gauge galvanised 25mm steel c-section 305mm to 610mm based on designed load Figure 29: Typical Layout for plank™ decking onto Steel Frame Figure 30: Fastener Fixing 13

Sheets are normally butt joint at along edges and butt joint or Self embedding head expressed joint with 3 to 4mm gap at the cross edges, refer Figure 31 Self drilling screws & 32 below. For wet area application, please ensure all the surfaces (6 sides) of plank are coated with water proofing sealer and coatings. 75mm / 100mm (W) x 3660mm (L) x 9.0mm (T) plank™V-edge 25mm Butt joint with moderate Mild steel hollow section or light gauge galvanised steel c-section, spacing c/c to engineer details Figure 31: Joint Detail at along edges 75mm / 100mm (W) x 3 to 4mm wide gap 75mm / 100mm (W) x 3660mm (L) x 9.0mm (T) 12mm 3660mm (L) x 9.0mm (T) plank™V-edge plank™V-edge 12mm 12mm 12mm Self embedding head screw, Self embedding head Self drilling screw Self drilling screws Mild steel hollow section Mild steel hollow section or light gauge galvanised or light gauge galvanised steel c-section, spacing steel c-section, spacing c/c to engineers detail c/c to engineers detail Figure 32: Butt Joint and Express Joint at cross edges (width joint) 8.3.2 Direct to Concrete Slab plank™decking must be pre-sealed with water repellent sealer for all 6 surfaces prior installation. Tile or chemical adhesive is used for bonding the plank™sheet to the concrete slab. A rough finished concrete slab surface is preferable to have good bonding with either tile or chemical adhesive. Dust, loose particles and grease must be removed from the concrete surface prior applying the adhesive. Prepare the adhesive as per manufacturer’s recommendation. Refer table below for the recommended tile adhesive and chemical adhesive for plank™ decking. Table: Recommended Tile and Chemical Adhesives for plank™decking Brand Commercial Product Name Description Weber Belcem Superflex 21 Single Part Semi-Flexible Tile Adhesive Mapei Keraflex Maxi Flexible S1 Adhesive Adhesive Single Part Semi-Flexible Tile Adhesive SIKA SikaBond-52 Parquet Solvent-free Elastic Chemical Adhesive 14

For application using tile adhesive, spread the tile adhesive to the For application using chemical adhesive, insert the sausage chemical plank™ bottom surface at bed thickness of around 10 mm. A adhesive into the adhesive gun, extrude a triangular shaped bead of triangular or rectangular notch trowel can be used to do the job. adhesive approximately 10 mm high and 8 mm wide at maximum Promptly fix plank™onto concrete slab and followed by slight 305 mm c/c onto the concrete slab. Refer to Figure 33 for chemical twisting action to ensure good contact before the skin-over of tile adhesive distance and plank orientation. Always refer to adhesive occur. Re-trowel the adhesive bed if the adhesive bed is no manufacturer’s recommendation for the skinning time or the laying longer tacky or sticky. Remove surplus adhesive before it hardens and time of the chemical adhesive. The plank™ is pressed firmly onto allow the adhesive to set and cure for 24 hours. It is recommended to the chemical adhesive. A rubber hammer can be used to knock on install the plank™ in staggered layout. It is key to allocate 3-4mm plank edges to ensure it is laid tightly to the slab. Allocate 3-4mm gap gap at along (length) and cross (width) joints for tile adhesive at width joint area and butt joint for along length area, refer Figure 34. application. plank™ Decking installed in staggered position 305mm max. c/c Chemical adhesive at 305mm max. c/c Figure 33: Chemical Adhesive Span Distance and Plank Orientation plank™ Decking 3-4mm wide gap plank™ Decking Butt Joint Chemical adhesive at Chemical adhesive at 305mm max. c/c 305mm max. c/c Figure 34: Joint Details (Along and Cross/Width Joints) 15

9 Finishes Recommendations Under normal circumstances plank™ must be coated within It is difficult to cover the fastener with jointing compound with translucent varnish paint and thus a layer of white primer or sealer is 3 months after installation. For best result, decorate plank™ with recommended to paint as first layer prior the translucent varnish paint. 2 coats of 100% quality acrylic paint. For general-purpose For certain applications, it will be looked good by exposing the applications, there is no requirement for primers or sealers. Ensure fastener head without any jointing compound. planks are dry prior to painting. For decorative fencing application, In all cases, coating manufacturer's recommendations must be strictly adhered to. plank must be coated on both surfaces and all edges. All plank exposed surfaces and edges must be painted. For translucent varnish colour appearance, Nippon Fibercote is recommended as it will provide or highlight the natural grain of the product. 10 Working Instructions 10.1 Cutting tool equipped with carbide-tipped or diamondtipped circular saw. Cutting must be carried out in a well-ventilated area using one of the following methods:- 10.2 Drilling • Score and Snap - Score the plank face with 'score and snap'. Repeat Small holes can be formed using high-speed (HSS) drill bits. Larger circular holes can be created by drilling a series of small holes around until depth reaches 1/3 of plank thickness. Snap plank upward to the perimeter of the proposed hole, and gently tapping out the achieve clean break. Trim cut edge with rasp if necessary. waste piece. Smoothen the rough drilled edge with rasp if necessary. Figure 26: Score and Snap Method (left), Machine Cut (right) 10.3 Hpalannkd™ling & Storage • Hand Saw must be stacked on flat ground and supported wfth level The use of fine-toothed hand saw coupled with quick jabbing bearers prior to installation. Ensure all timber bearers of a stacked action will normally'produces best result. plank are aligned with other stacks. Improper plank stacking may • Power Cutting Tool result in permanent plank deformation that causes unsightly When large amount of plank cutting is involved, use power cutting appeaprlaannkc™e such as waviness. must always be kept dry, preferably stored under a protected shade. When stored outdoors, it must be protected from water ingress and weather by covering with tarpaulin sheet. Allow wet plank to dry to equilibrium under a natural ventilated condition prior to installation. plank™ To minimize breakages. must be carried with up-right. 16



50 Years 50 Years Durability WARRANTY Hume Cemboard Industries Sdn Bhd (“the Company”) warrants that it will at all times ensure that the products referred to herein (“the Products”) shall be supplied by it to the purchaser free of any manufacturing defects and defective materials used in their manufacture. In the event and if contrary to this assertion the Products prove to be defective, whether as a result of manufacturing defects or arising from the Company’s use of defective materials, the Company will supply replacement Products. The Company shall, however, have the option and may choose to reimburse the purchaser the purchase price of the Products instead. The Company shall not be liable for any economic or consequential losses arising from any use of defective Products. This warranty shall be void unless the purchaser has, in its handling and installation of the Products, complied with the recommendations contained in this brochure and other good building practices expected of a reasonable purchaser. ADVISORY NOTE Successful installations of Hume Cemboard Industries Sdn Bhd’s Products depend on a large number of factors that are outside of the scope of this brochure. Particular design, detail, construction requirements and workmanship are beyond the control of the Company. As such, Hume Cemboard Industries Sdn Bhd’s warranty does not extend to non-usability of Products or damage to Products arising from poor or defective designs or systems or poor quality of workmanship in the installation of Products. For more information, please contact us at: No. 12 Jalan Tandang, 46050 Petaling Jaya, Selangor, Malaysia. Malaysia Sales Tel: + 603 7625 9999 Fax: +603 7625 7822 Email: [email protected] Oversea Sales Tel: + 603 7625 3880 Fax: +603 7625 3990 Email: [email protected] www.primafibrecement.com V2