I saw that the fire was getting bigger and bigger , I quickly asked the residents to call 119.
At 14:45, the fire was extinguished.
Recently, Wuhan Fire Department of Hubei Province specially announced the typical fire accident case of the roof platform of a building on 125th Street, Qingshan District, May 27.
When I was baking waterproof coiled material, thick smoke suddenly appeared in the tile joint.
Suddenly I heard master Ni call me.
For example, strengthen safety education, apply for open fire operation in advance, assign special personnel to supervise the operation area, and prepare fire-fighting equipment on site.
At 14:21 on May 27, after receiving the alarm, Wuhan fire rescue detachment immediately mobilized Wufeng fire rescue station to the scene for disposal.
Of course, other construction methods such as cold bonding and hot bonding can also be adopted for SBS waterproof coiled material; At present, these methods have not become the mainstream instead of hot-melt method.
In the project with fire, the waterproof coiled material does not burn itself due to excessive hot melting, but is out of control due to the spread of open fire caused by the ignition of surrounding combustibles by hot melting fire gun.
The hot-melt construction should be cautious and pay attention to avoiding fire hazards.
Generally, fire will not occur.
I hurried down to connect water with the residents to put out the fire.
He said it was on fire.
According to the investigation of the fire department, the fire was caused by the fire of the thermal insulation material under the roof caused by the high temperature when the roof workers used gas tanks and fire guns to construct the roof waterproof.
Construction personnel must keep safety in mind when carrying out hot melt construction.
The fire accident occurred in the afternoon of May 27, covering an area of about 83 square meters.
How to avoid the fire safety problem of hot melt construction? 1) Reasons for possible fire safety problems in SBS waterproof coiled material construction: SBS waterproof coiled material is constructed by hot melting method.
In roof engineering, SBS waterproof coiled material can be used in one or two courses to meet the fortification requirements of different waterproof grades.
The introduction is to carry out in-depth socialized publicity and education, improve the fire safety quality of the whole people, analyze fire cases, analyze fire causes, cultivate residents’ fire safety habits, and implement the main responsibility of social units.
” The fire department investigated that the fire site was the roof platform, which was 7.5m long and 8.9m wide.
The lower house was seriously damaged, the roof reinforcement on the north side of the roof was seriously deformed, the ridge beam had obvious signs of burning and fracture, and all items such as wardrobe, water heater, kitchen and washing machine in the house were burned.
3) Reasons for possible safety problems of hypoxia and asphyxia caused by SBS waterproof coiled material construction: when SBS waterproof coiled material is constructed in a closed small space, hot-melt flame combustion causes a large consumption of air and oxygen, resulting in hypoxia.
SBS waterproof coiled material hot-melt method has been used in projects in Europe and America.
The fire caused damage to one household and no casualties.
As soon as we couldn’t see it out, master Ni robbed the gas jar, and then the residents on the 6th floor hit 11 9 call the police.
Moreover, at present, European and American countries and China have developed various types of hot-melt construction tools and equipment to improve the construction efficiency, safety and environmental protection of hot-melt method.
SBS waterproof coiled material has clear requirements for structural design, waterproof construction, product quality and waterproof layer acceptance in national standards technical code for roof engineering gb50345 and technical code for waterproofing of underground engineering gb50108.
Its application scope has been expanded from housing construction to engineering construction fields such as subway, tunnel, landfill and sewage treatment.
Master Ni, the on-site construction personnel, said: “At about 14:20 on the day of the fire, I was standing on the roof baking waterproof materials with the fire gun of the gas tank to make the roof waterproof.
All the roof platforms and roofs were burned, and the roof collapsed into the roof platform.
I cut the coiled material below.
” Another worker, master Xu, introduced: “At about 14:20, master Ni and I were working.
4) Reasons for the safe use of liquefied gas in the construction of SBS waterproof coiled material: the fire gun switch is not closed or the fire gun fails, there is liquefied gas leakage, or the liquefied gas leakage is caused by the damage of gas transmission hose..
Later, the firemen came and put out the fire.
The fire accident occurred on May 27, which was caused by the careless hot-melt construction method adopted by waterproof construction personnel.
Open fire is used in hot melt construction, which is easy to produce fire safety accidents, but most of these safety accidents are caused by on-site safety management, non-standard construction operation and backward construction machines and tools; During the construction of qualified SBS waterproof coiled material by hot-melt method, there is no large amount of smoke release on the actual site.
2) Reasons for workers’ burn safety caused by SBS waterproof coiled material construction: during SBS waterproof coiled material hot-melt construction, people may be burned by fire gun flame due to carelessness.
The original roof was corrugated tile.
Later, the firemen came and put out the fire.
Countermeasures: hot melt coiled material construction shall not be carried out in confined small space; If construction is necessary, fresh air supply can be strengthened, special personnel outside the operation area shall be responsible for observation, and measures such as changing personnel for operation after a certain period of time shall be specified.
It is the most mature and reliable SBS waterproof coiled material construction method at present.
I looked up and saw that the ceiling under the roof of his construction operation place was burning up, and it was getting bigger and bigger.
SBS waterproof coiled material is the most widely used waterproof material in engineering waterproof in China.
The engineering parts are widely used from roof waterproof and underground engineering waterproof to ground waterproof of large kitchen, asphalt road waterproof and water storage engineering waterproof.
The hot melt method has the advantages of simple construction process, good construction performance, adaptability to various complex foundation surfaces and is not affected by climatic conditions.
Countermeasures: therefore, the fire prevention of SBS waterproof coiled material hot melt construction should be controlled from the aspect of management.
Countermeasures: fix the fire gun construction operators and standardize the operation; Use guns with good controllable performance; Workers need to wear protective measures such as work clothes during operation; Prepare burn drugs and emergency plans.
At that time, master Ni was baking the coiled material on the roof with a fire gun.
I called master Xu who was working below and asked him what was the situation.
