As an architect and an observer of architectural trends, I have noticed the recent increase in popularity of a certain architectural style. In fact, it has become the fad among successful architects in Nigerian Residential Buildings.
Modern architecture as we call it, stems from a period in architecture where design style was characterized by prominent horizontal and/or vertical elements, flat roofs and large windows.
Today, a lot of contemporary materials such as steel, glass, concrete etc are used in its construction.
In Nigeria, these building types are becoming prevalent among young clients/architects, perhaps because of their unique look, i.e. their unusual and stylistic appeal. Which often creates a sense of ‘Brand’ for both its owners and designers.
However, my concerns are on how suitable these buildings are to the Nigerian climate and how easily maintainable they are.
Is it mostly a case of function follows form or the architect forcing his ideas on society at any expense. Furthermore, I am curious to know the perception of the public to these kinds of buildings?
When we look at the general appeal of modern architecture – of both its interior and exterior form, we are fascinated, especially about those that are well designed and built. Buildings with this style stand out.
Most architects and clients who patronize this style of architecture share similar traits with the style. Traits such as sophistication and simplicity.
Often, this architecture style creates a sense of brand for its owners and designers.
Nevertheless, how often do we ponder on the suitability of these building types to the Nigerian climate and what are the levels of comfort, especially thermal comfort achievable in these buildings.
Firstly, a defining character of modern architecture is its flat roof. Achieving this, most architects will use outright flat concrete slabs or conceal a roof within tall parapet walls with hidden roof gutters or have a visible lean-to single slope roof over the building.
From observations, the first roof is unsuitable for our climate because it causes interior spaces to heat up faster than any of the other roof type. It is also prone to leakages caused by consistent rainwater accumulation on concrete and requires frequent and expensive maintenance.
The second roof also requires periodic maintenance especially the roof gutters while the third roof requires the least maintenance and is very effective in taking rainwater completely away from the building top just like the Hip Roof.
However, when the roof slope is too gentle it doesn’t do this effectively and thus, easily get damaged by the accumulated water that should otherwise have been quickly discharged.
This therefore raises questions on the suitability of flat roof to our climate. Secondly, interior spaces that should normally be completely shaded from the scorching sun and drenching rain are often compromised in order to achieve aesthetics.
A common example of these are roof terraces or balconies. They are often fully/partially exposed allowing both heat and rain to not only access these spaces but discomfort users in these spaces.
Lastly, Large and full length windows are also characteristics of modern architecture. It allows the designer to emphasize his vertical elements, however, these windows are retainers of heat within the building.
The deficiencies and unsuitability of most of these roof types and interior spaces are known facts to architects, nonetheless some still insist on using them.
This makes me ask, if it is a case of function follows form for architects, that is, is he more interested in making an aesthetic statement at the expense of functionality and maintainability.
A few people I spoke with appreciated the architectural style but showed no interest in owing one. No doubt this style is elitist, so the demography I spoke with may not be a truly reflection of public opinions.
However, I am bothered that most of those who engage in it as well may not be considering other factors such as climate, maintainability and energy consumption of these buildings when designing and thus, creating design don’t don’t solve local problems.
In addition, the hue of paints used on most of them are shades of grey, white and a dominant black/red/orange etc which for me doesn’t integrate these buildings well into their natural environment.
This is so because the interiors and exteriors are mostly made of ‘visually cold’ materials such as stainless steel, glass and white/shades of grey painted walls, ceilings and floors.
In summary, the wide spread adaptation of modern architectural style in residential buildings is admirable, in fact, its aesthetics and class has endeared it to most sophisticated, simple and young clients/designers.
However, my concern is in the suitability of this piece of architecture to the Nigerian climate. It is evident that the flat roof characteristics of this design type, coupled with its large glass coverage exposes it to maintainability issues, increased energy consumption and rainwater leakages.