Powerclad Filter Installation

POWERCLAD® Fi l ter Sheet ing for C o n t a i nm e nt and Weather P r o t e c t i o n www.powerclad.com Powerclad? is a Trade Name of Industrial Textiles & Plastics Ltd. E&OE. ? Industrial Textiles & Plastics Ltd 2010 Industrial Textiles & Plastics Ltd Stillington Road Easingwold York YO61 3FA United Kingdom Tel: +44 (0) 1347 825200 Fax: +44 (0) 1347 825222 E-mail: technical@powerclad.com Web: powerclad.com CERT NO.2318/00 As with all installations, a Health & Safety risk assessment should be undertaken by a qualified and competent person to ensure that the supporting structure is designed to accommodate the increased wind forces on sheeted scaffolds. It is essential that qualified and trained personnel responsible for fitting and maintaining the sheeting properly understand the requirements for ensuring that it is fixed so that it will perform as intended. Final determination of the suitability of any information or material for the use contemplated and the manner of use is the sole responsibility of the user and the user must assume all risk and liability in connection therewith. 1. Powerclad Filter Sheeting is a temporary, general purpose, containment and/or weather protection sheeting system. It is permeable to provide ventilation and dispersion of air pressure and solvents. W A R N I N G Powerclad is not a Fall Restraint or Fall Arrest System. Do not lean on or fall against any sheeting or netting. 2. Prior to installation, it essential that a thorough safety review and risk assessment of the scaffold design is undertaken to ensure that the structure will withstand the additional forces caused by sheeting the scaffold. The safety review and risk assessment should be far reaching and include consequences of installing sheeting close to unusual suction forces (such as motorways, bridges, tunnels & railway tracks), to surrounding buildings and areas, the public, pedestrian and vehicular traffic and the consequences of accidental collapse. 3. Only Powerties or Toggle ties manufactured by ITP Ltd are recommended for fixing Powerclad Filter Sheeting to scaffolds. Cable/ratchet ties or any other rigid fastenings are not recommended as these may cut through the fastening points. Powerties are used to fasten both loops and Button-hole fastening points on each hem and the middle of the sheet. 4. Powerclad Filter Sheeting is normally installed horizontally or vertically on the outside of the scaffold. 5. Powerclad may be installed on the inside of the scaffold only where unusual suction forces are likely to be encountered (fast moving traffic alongside roads, motorways, bridges, tunnels & railway tracks and sites where wind may be funnelled). When installed on the inside of the scaffold, sheeting is unable to detach and the scaffold needs to be designed to withstand the additional forces. Failure to strengthen the scaffold structure may lead to its collapse. Sheeted scaffolds incur higher wind loading 6. Clamp fittings and poles protruding into the Filter Sheeting should be avoided as these will chafe and eventually puncture the sheeting. Where necessary, sheeting should be protected from protrusions with suitable protective covers. 7. For safety considerations, Powerclad Filter Sheeting should never be installed during windy conditions. 8. It is the contractor’s responsibility to ensure that for each site, an expert analysis of anticipated weather conditions is conducted and that an adequate and appropriate support density ( the number of ties per square metre ) is used to tie the sheeting to the scaffold structure. 9. In windy conditions, an inadequate number of ties will inevitably result in the sheeting detaching prematurely and too many ties may put excessive forces on the scaffold structure leading to its collapse. In high winds, the sheeting should be regarded as sacrificial in order to maintain the integrity of the scaffold structure. Sheeting begins to detach as soon as the wind forces exceed the breaking strength of the ties and/or the loops and/or the sheeting material. 10. All structures require individual design interpretation depending upon site location, elevation and shape, the period of installation, the variability of the wind speed factors and whether the sides of the structure are sheeted or open. 11. A minimum support density of 1 Powertie per square metre of sheeting is recommended. For further information and recommendations, please refer to the Guide for the use of Powerties. CAUTION Elastic ties may spring back. Can cause eye damage or blindness. Wear eye protection when installing ties. 12. The scaffold should be designed and erected so that the tubes are aligned with the centres of the double-row Button-hole fastening points. 13. The Filter Sheeting is fastened to the scaffold by looping the Powertie through pairs of Button-holes and around the scaffold tube. When overlapping sheets, the Button-holes can be aligned to loop the Powertie through both layers of Filter Sheeting. Loop the Powertie around both the tube and the scaffold tube. The toggle is pushed through and passed around the two Button-holes and secured to the scaffold as illustrated. Fastening Filter Sheeting to the scaffold POWERCLAD® Fi l ter Sheet ing for C o n t a i nm e nt and Weather P r o t e c t i o n www.powerclad.com Powerclad? is a Trade Name of Industrial Textiles & Plastics Ltd. E&OE. ? Industrial Textiles & Plastics Ltd 2010 Industrial Textiles & Plastics Ltd Stillington Road Easingwold York YO61 3FA United Kingdom Tel: +44 (0) 1347 825200 Fax: +44 (0) 1347 825222 E-mail: technical@powerclad.com Web: powerclad.com CERT NO.2318/00 14. The Filter Sheeting may be further tensioned by fastening the Loops The toggle end of the Powertie is pushed through the loop so that the yarns are secured as illustrated. The hook is then passed around the scaffold and clipped to the shock cord. Looping the Powertie around both the tube and Loop should be avoided as this may saw through the yarns. Tensioning Filter Sheeting using Toggles through loops 15. In common with good working practice, the support density should be doubled for 4 metres from the end of each run of sheeting or at corners of structures where the sheeting should be returned around the edges of the scaffold. This provides added security where the sheeting is most vulnerable in inclement weather. 16. For rapid and efficient horizontal installation and in order to achieve correct positioning and tensioning, firstly the upper and central fastening points are tied at predetermined and equally spaced intervals to the top ledger and guard rail respectively. The lower band of fastening points is then tied from the lift below as the next roll is installed. 17. Similarly, for vertical installations, the roll is progressively unrolled from the top of the structure and the sheeting tied as the roll is lowered. Unrolling the entire roll before tying is not recommended since it is liable to flap. The roll should be lowered carefully and should not be allowed to drop since it may fall onto people or property. To minimise the risk of uplift, overlapped sheeting should be ‘tiled’ such that the prevailing wind passes over the overlap. WARNING Do not walk on Powerclad Filter Sheeting. It is not designed for walking on and it is slippery when wet. 18. Powerclad should be inspected at regular weekly intervals (or immediately after windy conditions) to ensure that the sheeting is securely tied. Any broken ties or torn sheeting should be replaced as further damage and tearing will inevitably result if the sheeting is allowed to flap unnecessarily DISCLAIMER OF EXPRESS AND IMPLIED WARRANTIES Subject to the limitations, disclaimers and statements as set forth below, Industrial Textiles & Plastics Ltd represents to the Buyer that the product or products delivered to the Buyer conform(s) to the manufacturer's description and specifications attached to or delivered with the product. The representation that Industrial Textiles & Plastics Ltd makes to the Buyer that the product or products conform(s) to the manufacturer's description and specifications applies only under such circumstances when the Buyer utilises the product or products as specified and under normal use for which said product was intended. Any alleged nonconformity shall be made in writing to Industrial Textiles & Plastics Ltd. specifically stating and describing any such alleged nonconformity. The representation by Industrial Textiles & Plastics Ltd that the product or products delivered to the Buyer conform(s) to the manufacturer's description and specification as attached to or delivered with the product is expressly in lieu of all other representations, warranties, expressed or implied, and of all other obligations and liabilities, including consequential damages, on the part of Industrial Textiles & Plastics Ltd. Industrial Textiles & Plastics Ltd neither assumes nor authorises any person to assume for it any other liability in connection with the sale of the product. The representation of conformity by Industrial Textiles & Plastics Ltd as represented by Industrial Textiles & Plastics Ltd shall in addition to the above be null and void in the event that the product is misused or handled in a negligent manner by Buyer or any third party. Industrial Textiles & Plastics Ltd shall not be liable for damages or delays, if such occur, on account of defective material or workmanship or delays in shipment, nor will any allowances be granted for any repairs, alterations, work done or expense incurred in connection with any repairs, alterations or replacements except on specific written authority by Industrial Textiles & Plastics Ltd. Industrial Textiles & Plastics Ltd shall in no way be liable or responsible for injuries or damages to persons or property arising out of the use or operation of the product as herein contemplated, and Buyer hereby agrees to indemnify and save harmless Industrial Textiles & Plastics Ltd from all such liability and responsibility. Industrial Textiles & Plastics Ltd shall not be liable for any consequential damages for any reason including but not limited to those contemplated herein and whether such consequential damages may have been foreseeable, proximately caused or otherwise occurring. This disclaimer of Express or Implied Warranties constitutes a significant limitation on the rights and remedies otherwise available to the Buyer, which the Buyer freely and voluntarily acknowledges and accepts as part of the consideration for the contract to purchase the product or products from Industrial Textiles & Plastics Ltd. Due to a policy of continued research & development, Industrial Textiles & Plastics Ltd reserves the right to alter the details as described. Products are offered subject to our normal Conditions of Sale, which are available on request. The information in this document is of an illustrative nature and is supplied free of charge. It does not form part of any contract or any intended contract with the user. Final determination of the suitability of any information or material for the use contemplated and the manner of use is the sole responsibility of the user and the user must assume all risk and liability in connection therewith.