Instructions for labor protection during insulation and roofing work

Free technical library

OCCUPATIONAL SAFETY AND HEALTH
Free library / Occupational Safety and Health / Standard instructions for labor protection

Instructions for labor protection during insulation and roofing work

Occupational Safety and Health

Occupational Safety and Health / Standard instructions for labor protection

Comments on the article

Safety requirements

1. Persons who have been instructed in safe methods and methods of work are allowed to carry out insulation and roofing work on roofs.

2. The person responsible for the performance of the work (supervisor) must ensure that the rafters and lathing (formwork) are in good condition before being allowed onto the roof for installation or repair of the roof.

3. Workers on the roof must be equipped with safety belts, safety ropes and non-slip shoes (felt or felted). Those working on a roof with a slope of more than 20 degrees or wet (regardless of the slope), or covered with hoarfrost (snow), in addition, must be provided with portable stepladders at least 30 cm wide with sewn-on straps. Ladders during work should be securely fastened with hooks, for example (with a gable roof) by the roof ridge.

4. Before starting work on the installation or repair of the roof, it is necessary to check the condition of the parapet fence and, in case of dilapidation, take measures to strengthen it.

5. Coating of chimney heads and installation of ventilation shaft umbrellas must be carried out from horizontal decks laid on the crate. The use of ladders is prohibited. With a height of chimney heads and ventilation shafts of more than 1,5 m, they are covered from stable scaffolds. Workers in this case are provided with safety belts and safety ropes. Roof scaffolds must be securely fastened with bracing cables.

6. Place piece materials on the roof and, if necessary, fix them in such a way that they cannot slide down the slope or be blown away by the wind. It is necessary to use a portable safety mesh screen installed above the eaves.

7. It is forbidden to be on the roof and carry out any work at wind speeds above 7,5 m / s (5 points), during dense fog, ice, thunder, heavy rain and heavy snow.

8. Edge dressing of old sheets of roofing steel, their trimming and other procurement operations should be carried out below or in the attic, and paintings prepared for laying should be submitted to the roof.

9. During breaks or completion of roofing work, all remnants of materials, tools, inventory and fixtures must be removed from the roof.

10. In order to prevent people from entering the zone of possible falling from the roof of materials, tools, containers and dripping of mastic, paint, it is necessary to install a fence on the ground no closer than 3 m from the walls of the building, and to arrange solid protective flooring in the form of galleries, peaks and post an attendant.

11. Crossings on roof slopes with a slope of more than 20 degrees are allowed only in a safety belt with a safety rope attached to the rafters.

12. To supply piece roofing materials previously made on the attic floor to the crate, it is necessary to use inventory scaffolding.

13. Primers, hot and cold roofing mastics, prepared centrally at factories or workshops, are delivered to the site in finished form. The preparation of mastics directly at the construction site is allowed as an exception for small amounts of work.

14. Hot bituminous mastics should be prepared in special bituminous boilers, which should be equipped with agitators and nozzles for supplying liquid fuel or gas, or fireboxes with grate for solid fuel (wood, coal, peat).

15. To prepare hot bituminous mastics, bitumen is first loaded in the boiler. After melting and dehydration of the bitumen, anthracite oil is added in small portions. The filler loaded into the boiler must be dry, it is fed through the chute.

16. Boilers for cooking and heating insulating bituminous roofing compositions are tightly closed with fireproof lids and fixed. Filling of boilers is allowed no more than 3/4 of their capacity. When using, as an exception, an open bitumen boiler, the latter must have a tight-fitting lid in case of bitumen fire. Bitumen workers should be on one side of it so that they do not burn each other when loading and stirring the bitumen.

17. Places for cooking and heating mastic should be removed from wooden buildings and warehouses by at least 50 m. fabrics (felt, asbestos). Bituminous compositions indoors should be heated in electric tanks; It is forbidden to use heating devices with open fire.

18. A fireproof canopy must be installed over a bituminous boiler installed outdoors to protect it from atmospheric moisture entering the boiler.

19. Mixing of bitumen with gasoline is carried out at a distance of at least 50 m from the place of bitumen heating. In this case, the heated bitumen must be poured into gasoline (and not gasoline into bitumen). The temperature of the bitumen at the time of preparation of the primer should not exceed 70°C. Mixing gasoline with bitumen is allowed only with a wooden mixer and wearing goggles. It is not allowed to prepare the primer on leaded gasoline or benzene.

20. Tanks, tanks and cans in which primer or gasoline is prepared, transported and stored must be tightly closed. It is not allowed to unscrew the caps of barrels and cans from under the primer or gasoline (even empty ones) with a chisel and a hammer. The plugs must be unscrewed with a non-ferrous metal spark-proof key.

21. Storage of the prepared primer, as well as containers from the primer or gasoline, is allowed in rooms that are safe in terms of fire and equipped with good ventilation. It is forbidden to store gasoline, primer under living quarters.

22. Workers involved in the preparation of hot bituminous mastic and varnishes are provided with goggles, respirators, rubber boots and protective clothing.

23. Heated mastic is delivered in tanks having the shape of a truncated cone, tapering upwards, with tightly closed lids. Filling the tanks is allowed no more than 3/4 of their capacity. To receive tanks from heated mastics in a recess (pit, trench) or on a sloping roof, a special platform is arranged with a horizontal, even and dense, hard flooring, and tanks are served from the flooring or bridge, or using a rope with a block, a forklift, a winch, etc. .P. Below (on the ground) the danger zone is fenced off.

24. To perform roofing work on flat roofs that do not have permanent fences, it is necessary to install temporary portable safety mesh screens 1 m high. The screens are attached to the roof overhang with clamps or other devices.

25. Covering cornice overhangs, parapets, hanging and replacing drain funnels should be carried out from scaffolding, hanging cradles or mobile towers.

26. Hot bitumen, pitch or mastic that gets on the skin should be washed off with warm water and soap, lanolin paste. After that, it is necessary to put a lotion from an aqueous solution of potassium permanganate on the burned areas of the skin and then lubricate them with petroleum jelly, lanolin or a special burn ointment.

27. When performing insulation work with the use of a primer, the premises must have a supply and exhaust forced ventilation in an explosion and fire hazardous design. To prevent access by unauthorized persons, the danger zone is fenced off.

28. It is forbidden to leave a working boiler unattended and store flammable liquids near the boiler. When heating with wood, it is forbidden to use kerosene to make a fire.

29. If the walls of the boiler burn out and the seams in them open, it is necessary to immediately stop heating the bitumen, unload the mass, clean and repair the boiler.

30. For pouring hot bituminous mass into tanks, you can use a scoop with a long handle. The reliability and strength of the attachment of the handle to the scoop must be checked before starting work.

31. It is forbidden to approach the heated boiler furnace in clothes flooded with kerosene, gasoline, bituminous varnish and other flammable substances.

32. Places of work with hot bituminous mass, as well as passages and approaches to them, should be well lit.

33. Workers engaged in carrying and using heated bitumen must tie the sleeves over the mittens with a ribbon, and the overalls trousers over the boots.

34. Tanks with a heated mass should be carried by two workers using a metal rod with a recess in the middle for the bow of the tank.

We recommend interesting articles Section Standard instructions for labor protection:

▪ Work in rooms with the possible presence of hazardous gases. Standard instruction on labor protection

▪ Chemical analysis laboratory assistant at oil product supply enterprises. Standard instruction on labor protection

▪ Setter of facing materials for furniture. Standard instruction on labor protection

See other articles Section Standard instructions for labor protection.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

Mice recognize rats by the smell of tears. 04.04.2018

In order not to get caught for dinner by a rat, mice sniff the mating pheromones in rat tears.

We all know that tears are salty, but few people have heard that tears smell. Meanwhile, some animals - for example, mice - have pheromones in their tears: the lacrimal glands of males produce a special peptide that sets the female in a romantic mood. And sometimes tears set people in a romantic mood, but in people during tearful declarations of love or reconciliation after a quarrel, obviously, other mechanisms work related to empathy towards another person.

Researchers from the University of Tokyo found that rats have a similar "love" peptide. It is also synthesized in the lacrimal glands of adult males and is also intended for females, in which the peptide activates the vomeronasal organ that captures pheromones - a female who smells tears stops going about her business and stops waiting for a gentleman.

But, as it turned out, rat pheromone is felt not only by rats, but also by mice. In response to its smell, neuronal structures associated with defensive behavior are activated in the brains of mice; animals freeze in place, their heart rate slows down and even their body temperature drops. The mouse seems to be trying to hide, and it is not surprising - the rats eat mice, so the mice behave the way they should behave, feeling a predator from which you can hardly escape.
When the receptors in the vomeronasal organ were turned off in mice using genetic engineering methods, they no longer reacted to the mating peptide of rats, that is, the whole point really was precisely in this peptide and how the pheromone detection system senses it.

Probably, the rat peptide can be used to scare away mice, although the authors of the work themselves are more interested in questions of a more fundamental nature. Say, how did it happen that the same molecule triggers such different behavioral responses in two fairly close species? And, if this turned out to be possible in principle, are there other examples in nature of how a potential victim, for the sake of his own safety, “eavesdrops” on the fragrant love confessions of his enemies?

Other interesting news:

▪ Ultrasound makes the band-aid more sticky

▪ Google drones will save animals from extinction

▪ Electric current from microwaves

▪ Laser lens for electrons

▪ Television through socket

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Labor protection. Selection of articles

▪ article Ballpoint pen. History of invention and production

▪ article What is a pollen count? Detailed answer

▪ article Length units. Travel Tips

▪ article Homemade wind power plant. Electrical diagram of the installation. Encyclopedia of radio electronics and electrical engineering

▪ article Soldering gun. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews