Over the last few years, there have been continuous incidents of collapsing old constructions in India. As per data shared by the National Crime Record Bureau (NCRB), more than 14,000 people have died from 2010 to 2015 due to dilapidated building collapses. At an average, 2,700 people lose their lives in different structural breakdowns every year.
Across all the major cities in India, Mumbai has been witnessing the maximum cases of structural collapses. Between 2010 to 2015, there have been approximately 13,470 incidents of structural collapse in the country, and Mumbai alone accounted for 1,366 of these. This amounts to over 10% of the total incidents. The collapse of buildings, specifically old constructions, has been continuously increasing in recent years.
The life span of any building depends on many factors, including quality of building materials, external weather conditions, structural design and age of the structure. However, we have seen in the recent past that many collapses happened due to negligence of residents living in these old constructions. Most of the times, these old buildings are left dilapidated and never refurbished, even where residents had noticed severe cracks beginning to appear in the building. Because no actions taken despite warnings, the buildings eventually collapsed.
The age of construction is one the most crucial factors related to a building stability. Over time, construction materials deteriorate; old buildings are always at greater risk because of deteriorated building materials like mud mortar and galvanised pipe plumbing systems.
Buildings approaching a construction age of 15 years or more should be regularly inspected, repaired and, if needed, redeveloped. Since checking all aspects of construction may not be possible for individual residents, the services of an independent auditor must be employed. This can provide a primary line of defence against building collapses. Some initiatives are already being promoted by the Planning Commission in India to ensure continuous quality certifications and audits via entities such as Durocrete Construction Quality Rating Agency and the Construction Industry Development Council (CIDC).
Below is a key inspection checklist of aspects, along with suggested intensity and frequency (based on age of the construction), which residents should regularly inspect or have inspected – and, if required, ensure repair, redevelopment or vacating the building based on severity of dilapidation.
· If the ridges and fascia are straight and in level
· If there is any significant cracks in slab or foundation
· If all windows and doorframes appear properly aligned
· If the stairs and railing are strong enough to bear the loads
· Untoward movement of any wall
· If paint is fading, thinning or stained in places. Also, check the asbestos and lead levels in more than 35-year-old constructions
· Check whether walls are termite infested, especially in constructions built with mud mortar
· Check the brick joints stability if the building is built with mud or sandy mortar
· Seepage or leakage of water
· Signs of dampness
· Evidence of standing water at any corner
· Evidence of any damage in mortar/cement cover
· Water leakage or decay marks
· Erosion around roof penetrations
· Exposed iron bars, mortar or bricks
· If the septic/sewage/drainage system is maintained and functioning properly
· If old galvanized pipes are corroded from inside
· Signs of leakage at different joint points
· Loose or unstrapped pipes and faucets
· If main circuit breakers trip often
· If lights dim or flicker frequently
· Burning smell during heavy load times
· Overheating of cables, fuses or connectors
· If knobs and switches operate properly
· If wiring and switches are open at any place
· If construction is more than 30 years old and aluminium cables are used in branch wiring, have them replaced ASAP
· Termite infestation (mostly in old constructions)
· Signs of damage, infirmity or untoward movement in frames
· If frame corners and joints are firm and together
Authored By: Anuj Puri, Chairman – ANAROCK Property Consultants
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