Limited th ave Maple Ridge, BC V4R 2H4 (778) 240-WRAP (9727)

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1 General Safe Job Procedures Scaffolding and Work Platform The following guidelines apply to all access equipment used during any activity related to containment operations. Access equipment includes ladders, scaffolds and powered elevating work platforms such as scissors and boom lifts. Inspect working area to ascertain any overhead power lines, conduit and pipes. Inspect equipment before use and report any damage of defects to foreman and supervisor. Do not exceed safe working loads. Three-point contact- All personnel using access equipment must maintain three-point contact (two hands and one foot or two feet and one hand) for personal safety. Operators of access equipment shall avoid working under or over other personnel. Use signs and barriers to warn others of work overhead where appropriate. Safe Job Practices Scaffolding and Work Platform Scaffolding which is properly maintained and erected provides safe work platforms for workers to access high or awkward areas. Scaffolding must adhere to all requirements prescribed in regulations under the Occupational Health and Safety Act. The construction, alteration or dismantling of a scaffold must be carried out under the supervision of a competent person. Workers erecting or dismantling a scaffold more than 2.5 meters (8 feet) high must be tied off with a lanyard, safety harness and vertical lifeline with grab clamps. Scaffolds must be inspected before use for defects and adequacy of construction. The inspection must ensure that: Handrails, midrails, toeboards and decking are in place; All wheels are locked on moveable scaffolds; Locking pins are in place at each joint and castor on rolling scaffolds; There are safety catches on all hooks; The scaffold is erected level and plumb, on a firm base; and The scaffold meets standard construction drawings where available You must NOT move scaffolds while workers are on them. No one is allowed to change or remove scaffold members unless authorized by a competent person. Any work platform or scaffold used to support more than workers with light tools/materials must be constructed to withstand all loads to which it will be subjected. Scaffolds must be adequately braced horizontally and vertically Most tubular frame scaffolds should have braces on both sides of every section in the vertical plane. Horizontal bracing is provided to some extent by the scaffold platform and the base-plates on scaffold legs. However, where scaffolds are several sections high or on casters, most manufacturers recommend horizontal bracing be used. Parts and sections of scaffolds from different manufacturers must NOT be interchanged.

2 Scaffolds must be erected with all braces, pins, screw jacks, base-plates, and other fittings installed, as required by the manufacturer. Scaffolds must receive periodic inspections for over-stressed components, deteriorated components or other defects that may cause a hazard. A scaffold platform must be fully planked across its full width. Scaffold planks must be securely fastened to prevent them from sliding. Scaffold planks must be good quality and free of defects such as loose knots, splits or rot. They must be rough sawn, measuring 51mm x 25.4cm (2 x 10 ) in cross section, and made from No.1 spruce or better when new. Scaffold planks must be installed so that they overhang by least 15 centimeters (6 inches) but no more than 30 centimeters (12 inches). Scaffolds must be equipped with a proper ladder for access- vertical ladders must be equipped with 15 centimeter (6 inch) stand-off brackets and a ladder climbing fall protection device or safety cage when they are more than 5 meters (16 feet). Requirements for scaffolds mounted on castors or wheels include the following: Castors must be equipped with brakes and secured to the frame Brakes must be applied when working on the scaffold Workers must wear a full body harness attached to an independent support if scaffold platform is higher than 3 meters (10 feet) The scaffold must be moved on a firm level surface. Scaffold shall be adequately secured, or outriggers used, at vertical intervals not exceeding three times the least lateral dimensions of the scaffold. Scaffolds must be tied in to a building at vertical intervals not exceeding three times lateral dimension, including the dimension of any outrigger-stabilizing device. Where scaffolds cannot be tied in to a building; guy lines adequately secured should be used to provide stability. Scaffold over 15 meters (50 feet) in height must be designed by a professional engineer and constructed in accordance with the design. Remove ice, snow, oil, grease and other slippery material from the platform and sand surface.

3 General: General Shrink Wrap Installation Process Scaffolding, structures and other equipment can be exposed to the harsh elements for extended periods of time. protection provides a weatherproof solution to exterior projects, contamination and containment, heat retention, interior and visual projects. The following general procedures apply to the installation and repair of shrink-wrap containments. Different projects may require modifications to these procedures based on site-specific conditions. All Shrink-wrap containments will be installed based on the following general procedures: 1. Work area will be restricted to properly protected workers. 2. All workers will be trained in the use of their personnel protective equipment (PPE) and proper work procedures. This training will be documented in the project logbook. 3. Workers will wear approved steel-toed footwear, safety glasses, hard hats, gloves and any other site-required personal protective equipment (i.e. fire retardant coveralls etc.) 4. Support cables & structures to be inspected by supervisor prior to applying Shrink-wrap. 5. A first-aid attendant with required supplies will be on site at all times. 6. All work shall be as per OH&S regulations and consultant s specifications, if applicable 7. Inspect and record any existing visible damage to the structure. 8. Inspect the structure to determine if any features will present difficulties. (i.e. Scaffolding outriggers, roofs, and beams). Make a note of protrusions and apply padding to protect from damage prior to installing the Shrink-wrap. 9. Determine areas that need protection against excessive heat (ie electrical panels & hoses tress, branches, cladding etc.). Also, decide methods of attachment for Shrink-wrap. To determine the size of shrink-wrap required, measurements are taken of the roof cap and sidewalls. Upon arriving at these measurements, an additional 6 of Shrink-wrap needs to be added on each side of object to be tucked around and under the perimeter band. The standard Shrink-wrap sheet is 26 x 62. Installing the Shrink wrap 1. Once the support structure is in place, all sharp objects padded, and the perimeter support unit (scaffolding framework, cable, or webbing) is attached, the Shrink wrap can be installed. 2. The proper size Shrink wrap is now put on a roller do not let the wrap drag on the floor or ground, as it will pick up dirt and prevent prolonged seaming. Starting from the high point of the structure allows the Wrap to be pulled over the object much easier than starting from the low end. As the Wrap is pulled over the structure make sure there is excess at the bottom to tuck around and under the perimeter band; this will help hold it in place in case of wind.

4 3. After the Wrap has been pulled over and tucked in at the ends, the remainder can be secured. There will be excess Wrap at the edges and corners. The pleats at the edge or corner must be folded to the rear of the object and tucked over and under the perimeter band, or taped in place. This will ensure that there is enough wrap from top to bottom and side to side. 4. The rest of the wrap can now be cut 8 below the perimeter band, or taped to the object. Once this is done all of the material can be tucked around and under the band or taped to the object. 5. After being tucked around and under the perimeter band the EW-789 tool is used to apply heat directly above the band, which welds the outside of the Wrap and the piece tucked under the band. As you come to pleats or seams, these are welded at the same time. 6. Once all perimeter pleats and seams have been welded, secure a secondary band from the perimeter band under the object to perimeter the band on the other side. These keep the material and the perimeter band from rising as the Shrink-wrap shrinks. If these secondary bands are not used, there is a chance that snow or rain sitting on the cover could raise the perimeter band and allow pooling above. This could cause air & water leaks to enter / escape the object. ENSURE SITE-SPECIFIC PROCEDURES ARE DEVELOPED IF THE ENCLOSURE IS TO BE USED FOR HAZARDOUS MATERIALS CONTAINMENT. Shrinking the Cover 1. Following band installation, it is time to begin shrinking the entire cover. It is important to begin shrinking from the base of the perimeter. Using the EW-789 heat tool is very similar to spray painting. The trigger is pulled as you move the heat back and forth, in a horizontal, then upward fashion across the Shrink wrap. You should begin at the lowest part of the cover and let the rising heat work for you to start warming the plastic above. The ultimate goal is to have a tight top that will repel wind, rain and snow. This method will pull additional slack from the top so it will not take as much shrinking when you are ready for that area. 2. The rest of the cover can be shrunk once you have completed heating to the base of the structure. Always start at one end of the structure and work in one direction; this will give a tighter, more protective cover. Again, the ultimate goal is a tight, wrinkle free cover that will keep the elements out, shed rain or snow and protect against the wind. Patching Holes and Installing Venting 1. It is very important to inspect the entire cover for holes, weak spots and pleats that did not get enough heat. These should be patched with shrink tape. In colder conditions, the tape should be warmed slightly to heat the adhesives and then rubbed to remove any air bubbles. Heat the tape with EW-789 and then shrink the patch; it will be as new. 2. If necessary, ventilate the containment. There should be a minimum of two cross vents at the highest points of the containment. These vents will help eliminate moisture, mildew, exhaust or gas fumes buildup. Please see the following pages for more information.

5 Vent. EW-789 Heat Tool Procedures Taping on Covers for Boat Builders and Deale Support Structure 1. Whenever an object is to be wrapped it must have a support structure under the Shrink wrap cover. The support structure can be installed by using cables and Turfers. 2. If scaffolding is to be wrapped, it must be engineered prior to installation of shrink-wrap. UNLESS SPECIFICALLY INSTRUCTED THESE STRUCTURES ARE NOT ENGINEERED. 3. The first step in building a support structure is to run a cable or strapping horizontally along the structure at the highest point (such as the top of the scaffold rails). 4. The lower cable or strap must be pulled extremely tight, as it is the beginning of the support structure. Turfers are often used. Once this cable or strap is pulled tight make sure there is no sag in the cable or strap. 5. This previously cut support is then forced upright under the cable or strap going on the object. It should end up vertically under the cable. Now a cable or strap must be run laterally (side to side) on the object so that it runs over the top of the 2 x 4 brace and makes a cross with the lengthwise cable/strap. These can be tied to the top of the scaffold rails, or they can go around the entire object. This strap must be pulled tight as it is part of the support structure and will help keep weight off the object below. 6. Once that is completed, a cross strap is run over the top of each of these boards. These uprights must be no farther that 4 apart. The number of uprights will vary depending on structure length. 7. The tops of each upright and any other sharp edges must be padded with excess Shrink-wrap to keep them from protruding through the cover during extended time frames. The perimeter band around is used to hold the Shrink-wrap on the frame. There are several methods of attaching this band around the object. I. Run a rope/strap through the bow eye, around the object, and through the two eyes on the back of the object. This cable or strap is then pulled tight. II. Tie loops, made of cable or strap, down from the cleats or stanchion bases to the level that you wish to cover the object. These should be hung every 3-4 around the frame. The perimeter band is then run through these loops and pulled very tight. III. Use the Shrink wrap stick-cups which are suction cups stuck around the flat object, every 3-4, which hold the perimeter band in place while you are tucking the Shrink wrap over and under it. IV. Tape the Shrink-wrap to the object with Shrink-wrap shrink tape. NOTE: Because shrink-wrap is air tight, a shrink-wrapped scaffold or structure must be properly engineered to withstand high wind loads.

6 General Safe Job Procedures Suspended Access Equipment The following guidelines apply to all access equipment used during any activity related to containment operations. Access equipment includes ladders, scaffolds and powered elevating work platforms such as scissors and boom lifts. Inspect working area to ascertain any overhead power lines, conduit and pipes. Inspect equipment before use and report any damage of defects to foreman and supervisor. Do not exceed safe working loads. Three-point contact- All personnel using access equipment must maintain three-point contact (two hands and one foot or two feet and one hand) for personal safety. Operators of access equipment shall avoid working under or over other personnel. Use signs and barriers to warn others of work overhead where appropriate. Safe Job Practices Suspended Access Equipment Containment practices and procedures may require use of suspended equipment. Worker safety and fall protection is of a primary importance when using this type of equipment. Workers must wear a full body harness connected to a fall arrest system. There must be an individual lifeline for each worker on the suspended equipment. There must be two independent means of support for workers on suspended access equipment. An outrigger beam must be tied back to a fixed support with a secondary line. Supporting cables must be vertical from the fixed support or outrigger beam, parallel (if more than one), and extend to the ground or have a positive stop that prevents the suspended access equipment running off the end of the supporting cables. Inspect suspended access equipment daily before use to ensure: That all required components available, properly rigged and in good condition; Failsafe devices such as rope grabs, secondary safety devices and over speed controls are installed and operating; Power supplies for climbers are adequate, grounded and secured; Adequate numbers of counterweights are securely attached to outrigger beams; Fibre ropes are protected from chafing and abrasion; Emergency rescue arrangements have been planned, prepared and communicated to everyone involved Access to and from the work area has been planned and arranged. A competent person must control the operational equipment.