It was a high-rise building in Kolkata… A man on ropes is busy cleaning the windows. A closer look… the ropes he was hanging on were damaged and were from the ones discarded as non-usable; cloth tied across his shoulder and waist formed his safety harness; the karabiners had no twist locks or screw-gate closures; the descender/fall arrest ascension was missing; the old paint bucket hanging on the descending rope & a squeegee were his cleaning tools…
“This was a frightening sight. Besides the unsafe conditions he was working in, the operator hanging up there did not have anyone around to supervise or offer a helping hand in case of an emergency. It was a plunge to death in waiting,” laments Ashok Khemlani, Managing Director, Technoclean India Pvt Ltd.
In more than 99 out of 100 cases of death caused while working at heights have been due to inadequate or no safety apparatus on the operator. “The question here is not just who is responsible for these accidents but the fact that human life is important and it is necessary for each and every company to put an effort to ensure safe working environment, especially for people working on heights.”
“This is a question of human life and there are no laws for the safety of the façade cleaner! After a major incident, the whole nation arose to protect woman. Is everyone waiting for a major incident to take place to get the façade cleaners their right to live? So many façade cleaners fall to their death each day. There is no survey conducted to document these deaths.”
The Bureau of Indian Standards has guidelines laid down even for speed breaker as a road safety measure but sadly not for human safety at heights. “In the absence of proper laws for cleaning or façade maintenance, many tenders released have the tagline ‘the contractor must follow British Standards’. The contractor too claims ‘we abide by British Standards’. Ironically, in many cases neither the ‘tenderers’ nor the contractors may have actually read the ‘British Standards’, leave alone follow them.
“Unfortunately, be it the quality of floor cleaning or façade cleaning, the services have degenerated and touched the nadir. They have to rise from the rock bottom and that is possible only with mandatory rules and laws and awareness.”
It is not that every façade access or cleaning company is prepared to bear the costs of maintaining safety standards. “It costs money to do the medical tests on the people working on heights, it costs money to train them, it costs money to invest in the safety apparatus… it costs money to retain standards… standards that will save innocent lives.”
Contractors are picking up anybody, giving them minimum training and a uniform and putting them up the wall. Safety can be assured only with standards. “Only a movement can bring about respect to the cleaning profession, be it floor cleaning or façade cleaning.”
No employee should be put on the field without proper training specifically designed for the work the employee has been engaged for. Basic training involves not just the operations of the equipment but also taking care of them, besides the use of various sizes and kinds of squeegees for various kinds of facades. “Facades can be of glass, aluminium, tiles, etc. Each of them has to be cleaned with the right chemicals and tools.” This is to ensure that the employee cleans and at the same time does not cause damage to the client’s property.
Safety Checks
Rope access can be safe, if the norms are adhered to. It is important that there are two ropes which include a rope to descent and the other one just as a safety rope. The use of rope and the use of descending windows should be restricted to 200hrs. Besides, ropes should be suspended from the safety eye bolts and which should also have the capacity of taking a load of one tonne. Today, rope access cleaners in India have grown to probably 650, of which more than 450 are working with pioneers and balance 200 are divided in 20 odd other companies. Rope access should follow all other practices like keeping ready an operative who are aware of how to bring down a person who may be stuck midway due to heat or any other reason. It is customary to have a stand-by when two operatives are coming down on the façade. It is also customary to have minimum two operators come down together. One has to also worry about the kind of body harness that they are wearing. It should be friendly to their legs. If this is not taken care of over the period, it can affect the efficiency of their lower limbs.
Present Scenario
At the same time, facade access systems have come in acceptance in almost all types of buildings including IT parks, hotels, tall residential, commercial, low rise buildings, etc. One can dare to say that all well known builders and industry has accepted the need for facade access systems and are providing complete range from very economical minimal systems to sophisticated state of art facade systems.
There is also realization that the high rise buildings even if they are residential where the windows are not fixed, do require facade systems, because of high rise levels of wind prevailing at higher floors. Nearly, all tall structures beyond 30 floors have now facade systems.
In case of low rise building, where the total facade area is not very high and the height is below 100ft, if required, the facade can be cleaned by rope access or absaline. In origin, the rope access came into being, because, certain type of facades, one cannot do with the cradle system. In such cases, rope access was the only solution. When introduced in India, by Technoclean, this was a new technique even in developed countries of Europe. The rope access does reduce the output and does reduce capital cost. However, it becomes necessary for the building owners to take precautions to avoid accidents which have been plenty in India.
To begin with, it is very important not to allow rope access by tying the ropes to building elements. It is an unheard practice abroad and not permitted as per safety at heights practices and laws wherever they exist. In India, it is rather unfortunate that there is no regulation for safety for working at heights. It is very essential to provide safety eye bolts (a pair every 1.2m) located in the centre of the glass in a RCC parapet on the terrace. These bolts should be capable of taking one tonne load individually because universal safety factor is 10 for ropes.
Besides, the window cleaners should have a medical check up certificate, specially a medical check up for working on heights, clearly checked up for diabetes, vertigo, epilepsy, etc. Certainly, these window cleaners should not be drug addicts or alcoholic.
Besides, checking of the descender unit, one needs to ensure that the ropes being used are not in use for more than 1200 hours. This is a norm and this is a practice that is followed world over. The facade cleaning company should be insisted on to check the rope hours and check the descender unit hours and record them. Besides, the owners of the buildings should ask the cleaning company to bring the descender unit, ropes and most important, the safety shunts, to be shown to owners of the building, clearly checking for its working or worn out condition.
In case of system that is suspended, it is important that the system is maintained with a proper AMC, but more than that, every time the people go on heights, all the safeties should be checked at the ground level itself. It just takes a few minutes to check the safeties but it saves all possible problems and better worst still if not practiced, it may land up for both the building owners and the cleaning companies, into massive problems due to possible death.”
1. Ensure that the operator is in good health and not suffering from any ailment of the nature that does not permit him to do the work.
2. Ensure that the materials required are all available. This includes:
a. 2 Nos. ropes of sufficient length
b. Descender unit that is not worn out and fully functional
c. Sit body harness
d. Safety shunt
e. Karabiners for attachment of water bucket and a small rope connecting to the shunt.
f. Safety shoes for the operators
g. Hard hat / helmet with a strap
h. Cleaning tools, squeegees, applicators, blade and bucket that is half full with water
3. Check the rope if it is proper without any cuts, or bird cage. It must have sealed ends.
4. Check the descender unit in conjunction with the rope confirming that it is locking with the load. This is to be done every time and not once in a while.
5. The operators should be with complete personal protection.
Please ensure the oft repeated mistakes are not made:
a. The helmet is not for just keeping on the head. Essentially it is to be tightened on the head and strapped under the chin.
b. Sit body harness should be sufficiently tight. Any looseness may result into cracking of bones on an impact.
c. Shoe laces are tight. Some of the jobs especially the ACP panels, etc. may call for removal of shoes. This should be discussed with the client.
d. The descender attachments, Karabiner attachments, shunt attachments is positive and rechecked by both the operator and the supervisor.
6. It is preferred that while the operators are at work, the supervisor is fully attentive and watches the operators from the bottom of the building with full attention. He should also at that time prevent people / public from walking across the location where the window cleaners are on the façade.
7. On completion of the job, proper removal and storage of the gear is essential.
8. If the rope is drenched or wet the same cannot be used till it dries up.
9. Each of the team must have one operator who is trained in rescue work.
10. The bucket full of water if to be transported from the roof to the middle level, the knot of the rope on the bucket handle should be checked and the bucket handle itself having attachment to the plastic part should be rechecked.
11. Operators should be discouraged from receiving any calls while on work. It is preferred that they put their phones in ‘switch off’ mode.
Important: Should the winds go beyond 20km per hour, the work should be stopped and operators should come to their position of rest in a professional non-panic mode.
A basic rope access kit would typically include the following:
Working line: This is the main line with which the worker descends
Safety line: The line adjacent to the main line. Worker should be connected to both lines
Ascender: Used when the cleaner needs to climb up the rope
Back-up device: A back-up rope adjustment device attached to the back-up safety line protects the technician from a fall if the main working line fails or if the technician slips or loses control in any way. The back-up device is intended to lock on to the safety line without causing damage to the rope, and absorbing any shock load that may occur, thus preventing a fall from occurring.
Helmet: A helmet is used to provide head protection to the wearer from injury of any type. There are two European standards governing helmets for work at height. Unfortunately in India, helmets are not used to full advantage.
Chest harness: A chest harness is used to convert a regular work positioning harness into a fall arrest harness, with a suitable attachment to connect the two. The chest harness is worn around the upper body when working and is essential for ascending the rope. The ascending device is usually attached between the chest harness and the sit harness thus connecting the two harnesses for total body support. This harness will keep the cleaner safe in the event of failure of the rest of the equipment as he is preparing to climb down a building.
Chest ascender: An ascender is a rope adjustment device which, when attached to an anchored rope of appropriate type and diameter, locks under load in one direction and slides freely in the opposite direction.
Work harness: Used while coming down the building.
Descender: A descender is a manually operated, friction inducing, rope adjustment device, which when attached to an anchored rope of appropriate type and diameter, allows the user to achieve a controlled descent and to stop with hands off anywhere on the anchor line. Descenders are normally used in industrial rope access for descending the working line or positioning the operative.
Besides the above features, it is important to install safety anchors on the sides of the buildings before commencing descend for cleaning. Chemically grouted anchors called safety anchors that have been tested for a pullout load of 1000k should be fixed into the RCC. The main and the safety lines go through the two eye holes of the anchors to safeguard against accidents in the event of any single bolt getting unplugged. The anchors need to be retested on an annual basis.
To conclude, it is a must to include some safety standards within the organisation, if such safety regulations are not drafted by the industry. Ensuring employee safety at all times ensures employee loyalty.