CPCCWP2002A Use waterproofing tools and equipment TAP

CPCCWP2002A Use waterproofing tools and equipment

TRAINER’S ANSWER PACK

Type Title Standard Issue Version Ref Release date TAP CPCCWP2002A Standard 1 1 1 Use waterproofing tools and equipment 30/11/2015

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TRAINER INSTRUCTIONS

This package has been compiled to assist Trainers in the on site, timely and accurate correction of students written or verbal assessments. All pages of the “Assessment Package” are to be returned to TAM Administration for the recording of the students attainment.

Forms of Assessment The trainer is required to obtain at least 3 types of evidence but preferably more. These may include but are not limited to the following:-

1. Written or Verbal Assessment (the later for those with writing or literary difficulties)

2. Observation by the Trainer of ‘on-site work’ called Practical Assessment for work carried out on the student’s job site.

3. A Third Party Report completed by the employer after he is satisfied that the student/trainee has demonstrated the required knowledge and skills consistently whilst on the job.

4. A Photographic Record of work completed on site corroborated/signed by the employer where possible with the trainee carrying out the actual work. These photos should contain name, date, and the units that are supported by the photographic evidence. (Only to be used as supportive evidence)

5. Other forms of evidence including recognition of prior learning and skills, corroborated by a former employer accompanied by photographic evidence or a CT being a credit transfer from a previous RTO where a trainee has already completed some or all of that unit of competency.

Completing the Assessment Cover Sheet • Trainer is to tick the Yes box against each Form of Evidence if the student has

completed this part successfully. • Trainer is to place a cross (X) against any element attempted that is not

successful. • Do not place anything against evidence if the student has not attempted it. • Ensure that you can provide evidence of all assessments attempted. A

minimum of 3 items of assessment, at a satisfactory standard, are required for students to achieve competency. Normally it is possible to provide more.

Student Feedback Trainer is to ensure that at the completion of the training course (Qualification) an AQTF feedback form is completed, and forwarded to Administration for processing.

Administration Processing Administration personnel must ensure all relevant forms of assessment are attached prior to processing the outcomes of the training and assessment. If there is any information not finalised the complete package for that student must be returned to the relevant trainer to rectify.

Type Title Standard Issue Version Ref Release date TAP CPCCBL3005A NVR Standard 15.5 2 1 Lay masonry walls and corners 14/08/2014

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1. What is the most common complaint to all of the State run building commissions? The most common building complaint received by the States Building Commissions relates to the failure of waterproofing systems installed in external above ground situations. In a number of these cases, it is common to find water penetrating into the building around the sill of doors and windows at floor level

2. Explain the signage/barricade requirements that you should have in place. Consider your own as well as public safety especially around open ended balconies. Erect a safety barricade with signs that it is a construction site, you must protect your work from others and more importantly protect the public and other workers from coming into harms way. If other workers walk on fresh waterproofing it will be damaged and you may have to start again.

3. How would you establish the amount of waterproofing materials needed to complete the task? Measure up the area to be waterproofed and read the manufactures instructions for the material to be used and work it out from there. Divide your total square metres by the amount each bucket should be able to cover for the total amount of buckets, any sealants or reinforcing materials comes naturally on top of these.

4. What is the Australian Standard and codes that covers Waterproofing of wet areas? AS 3740-2010 (Wet areas in Class 1, 2, 4 and units in class 3 buildings) 5. Where can you look to check on waterproofing requirements for a project? Always check the architect’s specifications for the type of waterproofing and the area to be considered. This may vary considerably from low rise to high-rise. E.g. a terrace slab at ground level requires a lot less that one at first or second floor.

6. Explain the process you would carry out to prepare a new bathroom up to receiving the first waterproofing membrane coat The room must be swept clean and vacuumed to remove all dust. Best then is to clean with a moist sponge to pick up residual dust. A bead of polyurethane is then applied around all corners an up walls to appropriate heights. Then corner strips are cut and applied with membrane solution. Now the first coat can be applied, allowed to dry then the second coat.

ASSESSMENT ANSWERS


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7. It is your duty of care to wear PPE in accordance with site rules and signage.

A True B False

A o

8. Who is responsible for identifying hazards/risks on the work site?

A Company managers B Your supervisor

C You D Everybody

D o

9. What is the purpose of a safety data sheet?

Informs you of the dangers of the chemicals used in the product, what medical actions should be followed if accidently ingested or inhaled, what actions to take in the event of a fire, long term effects of using the product and storage options. 10. You have noticed some concrete dags and a blowout around the area you are about to waterproof. These must be removed with a small jackhammer. Explain your precautions and what you must look out for. Before using the electrical tool, ensure that it looks in good working order i.e. not damaged; the cable or lead is not damaged or frayed. The tool is tagged and the tag is up to date. When using ensure correct PPE is worn and be very aware of existing power sources or any water mains within any wall cavities near where you are to jackhammer. An RCD should always be used on building sites.

11. List 5 articles of PPE you would require when waterproofing a job?

Safety boots or safety joggers for foot protection Hi visibility jacket for own safety when going out side Breathing mask if poorly ventilated (waterproofing fumes can be dangerous) Safety glasses to protect from splatter in the eyes Gloves – rubber some chemicals are dangerous Long pants and long sleeved shirt 12. You are applying waterproofing membrane to the corners of a toilet area when you start becoming drowsy and unbalance. Explain the possible reason and the appropriate action?

Quite possible you are overcome by the fumes of the waterproofing product. Stop immediately and move to fresh air area in case you collapse, but not on an open balcony you may fall off. Sit and recover in fresh air for sufficient time you may possibly require time off. Ensure the area is better ventilated and all windows are opened before recommencing any work. Even deploy a fan.


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13. How would you clean up brushes and rollers and ensure no environmental contamination occurs through your work or actions?

Usually brushes and rollers are cleaned with petrol solution or water depending on the product and the mix burnt off. If it is bitumen based WP membrane. If they are badly covered it is often the case that they are allowed to harden and thrown into the rubbish as the cleaning causes more problems than it solves and replacement rollers are fairly cheap. If the membrane used is water soluble then they are cleaned in a bucket of water and the solution is poured into a sand trap and allowed to evaporated and harden. (Never down the drain) 14. Explain the need for a TMP if the delivery truck will be parked in a difficult position during the unloading process?

If the road is very busy it is imperative that you have a TMP in place and have organised stop-go bat personnel to direct traffic during deliveries. This may have been organised as part of the entire project but you should still liaise with the site supervisor and explain your deliver times and TM requirements so that this can be planned. 15. List and explain 5 of the basic tools you will require to apply the waterproofing membrane to new bathrooms and other wet areas?

Brooms Vacuum Brushes Rollers Caulking Gun Sponge Bucket Stanley Knife Hammer Chisel and more

16. Explain the checks you will carry out on your grinder before smoothing off a really rough area of concrete?

Check the blade that there is no damage Check the guards are securely in place Check that the machine is not damaged and is in good working order Check the leads are not damaged Check that the tool is tagged and that the tag is up to date


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17. You have 15 bathrooms, 15 toilets and 15 laundries to seal with polyurethane bond breaking bead material. Explain the most appropriate tools you will use to get the job done quickly and the process you will use to do so.

A Broom, brush& pan and a vacuum to remove all dust A rechargeable battery powered caulking gun for the 600mm tubes polyurethane A spray bottle for soapy water and some old rags Area needs to be absolutely free of dust and sponged over. Bod breaker beading must be applied around all corners of wall to floor and up walls to 1800mm in shower areas, otherwise to AS in rest of bathroom

18. You are to waterproof basements external walls below ground level with bitumen rolls. Explain the process you will employ to complete the job successfully and most importantly the surface preparation for the block surface.

The block surface will not allow bitumen to adhere easily hence it must be scraped clean preferably pressure cleaned and allowed to dry. If cracks or holes exist these must also be filled with mortar and allowed to dry. Although the process may vary depending on the quality of the surface, sometimes a thin render coat needs to be applied to address unevenness in the substrate, otherwise a primer for bitumen can be applied directly to the block surface or to the dry render surface. If it is a prefabricated surface then any release agent must be removed before sealing can occur. One the initial sealer is dry the torching of the bitumen rolls may begin. This is best done by cutting the strips to length and starting at the top. Heat a strip along the top of about 100-200mm and stick this in the correct area ensuring plumb and level. Hold in position until stuck and solid. The remaining strip may now be rolled up and then gradually heated as you move down and stick the entire strip. A pressure roller may be used on the outside as the strip will be very hot so beware.

19. You are to waterproof 15 balconies some on the 2nd and 3rd floors. Explain any additional safety precautions you may need to employ before commencing work.

When working at heights in such situations you must ensure that any patio or balcony area is safe and secure for your workers, even if you organise this through the construction manager it must be secure. If working close to edges of high areas then a safety line must be employed and a harness worn by all workers in the risk zone.


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20. What is the difference between toxic and non-toxic materials? What are two examples of each? Basically one is either corrosive, ignitable, reacts or is harmful and has the potential to kill or at least make you very sick and other doesnt? Thinners and Paint, diesel, Asbestos, Lead Paint dust, PCB Caulking, Lamps & Fluro tubes, batteries & mercury switches and other chemicals. Wood, brick and tile are non toxic.

21. What should you do if you are unsure whether a substance is hazardous or not? Who would you ask for advice? Ask your supervisor and the manufacturer or supplier. Consult the MSDS register.

22. Who is responsible for improving environmental procedures and methods in the workplace?

Every worker is responsible to follow the EMP

23. List the safety gear and equipment that you would consider using other than PPE? Safety equipment and gear that you could use may include but is not limited to: - Air ventilation equipment such as an exhaust fan if there are enclosed areas A simple fan Lighting equipment Paint brushes and rollers and trays Caulking guns both manual and electric Scissors, Stanley knives, chisels Trowels, hammers, buckets Masking tape Barricades to stop fall if on balconies Possible fall arrest system if on balconies

24. What should an organisation have in place to manage any environmental concerns? An Environmental Management Plan


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25. Is all material disposed of in the same way? Provide several examples of how waste can

be disposed of differently in the workplace. No – Bricks concrete and tile residue is sent for recycling and produces road base. Wood is chipped and recycled for furniture Plastics are recycled and reused in other plastic uses

26. What aspects of the environment will you need to take into account if you are to operate in a responsible manner? Rivers & creeks and where they flow Air and dust and wind movement Noise and how extensive it is Sorting and disposal of all building waste

27. You have applied the waterproofing membrane to a bathroom floor but notice an area that has bubbled somewhat and become detached from the substrate. Explain the possible reason for this and your rectifying actions.?

There must be some impurity in the substrate to cause a reaction like this, the area must be cut out and cleaned. To avoid this happening again with the rubber based membranes use an epoxy 2 part mix for this area e.g. Laticrete

28. What specific things does a safety data sheet explain?

Hazardous ingredients

29. After you have finished using a piece of equipment, what should you do before returning it to its appropriate place? Visual check of all hoses and leads, ensure it is free of dust mud and water, return dry to storage box and store correctly


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30. For the following list of tools used in waterproofing list next to each tool an area where you have used the tool and what you did with it? Angle grinders Have used to cut of concrete or protruding screws, also as a cup grinder to remove paint and other impurities before commencing waterproofing.

Caulking guns Used both manually operated and Ryobi batter operated to insert bond breaking polyurethane around all joits

Water levels

Used to draw straight and plumb lines to mark the boundaries of waterproofing

Electric hammers Used to chisel away-unwanted concrete

Extension leads Used for ventilation, lighting all power tools and always with RCD

Gas burners and torches Used externally to heat and apply bitumen waterproofing strips

Mixers and mixing apparatus Use these often to mix in the hardening compound for special waterproofing jobs, also for smaller amounts of render and special external bitumen render that needs a hardener added Excavating equipment Have used occasionally to re excavate external basement walls that have become leaking and need repairs – used again to close up after work is completed. Scissors Used often to cut anti fracture fabric to correct lengths and to make corner cups


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Brooms and brushes Always use to clean up any dirt and dust before commencing work

Measuring tapes and rules Used to measure up fabric strips, to measure up height of waterproofing in showers etc. and used to measure and estimate materials for ordering. Cutting blades For Stanley knives cutting tops off tubes, removing, cutting out unwanted materials

Buckets Good for carrying gear, lowering into below ground situations for holding smaller amounts of membrane for application and for collecting dirt, dust and rubbish Vacuum cleaners Great for removing last dust especially dirt under villa or plaster boar corners


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CPCCWP2002A Use waterproofing tools and equipment TAP