But the volume isn’t being cranked up on its own. A lot of the blame for clamorous offices can be levelled at the trend of open plan offices.
Sound affects us psychologically, cognitively and behaviourally, even though we’re not aware of it‘ – Julian Treasure, CEO The Sound Agency.
These sleek, open spaces are usually comprised of reflective easy-to-clean surfaces (think glass and concrete), which reflect sound, create harsh echoes and compound environmental noises.
But while the debate between open plan offices and cubicles rages on – there is one thing we are certain of, and that is that open plan offices are almost always the noisiest of the two. Now accounting for over 70% of modern offices, it is safe to say the open-plan phenomenon is here to stay.
Here are 12 ways that workplace noise affects worker well-being and productivity:
1. Noise Stresses Us Out.
It’s not just deadlines and office politics that can cause stress at work.
Noise is a not-so-silent cause of stress in our bodies.
Loud sounds and prolonged exposure to certain noises trigger physiologic stress responses in our bodies – such as spikes in blood pressure and heart rate.
Even sounds that office workers are exposed to – phone rings, conversations – affect the rhythm and rate of our hearts.
Research has shown that even intermittent exposure to loud noises can lead to higher long term stress hormone levels and hypertension.
2. Productivity Can Plummet When It’s Noisy.
Tom Dyckhoff of Chanell 4’s ‘The Secret Life of Buildings’ dons a cap that measures his brain activity for an experiment about open plan offices. The results showed clear signs of acute distraction in Dyckhoff’s brain when in the office. (Image: Telegraph)
In one experiment that aired on Channel 4’s ‘The Secret Life of Buildings’, architectural critic Tom Pychoff wore a cap that measured his brain activity when in an open plan office.
The test revealed “intense bursts of distraction” in Psychoff’s brain activity.
With over 70% of offices now open plan, with little to no worker segregation – think of all that lost productivity.
3. Conversations Are Especially Disruptive.
The hallmark of open-plan offices is the absence of partitions and cubicles.
According to the head of The Sound Agency, Julian Treasure, this is particularly problematic.
“There is plenty of research that shows that the most destructive sound of all is other people’s conversations”, says Treasure.
“We have bandwidth for roughly 1.6 human conversations. So if you’re hearing somebody’s conversation, then that’s taking up 1 of your 1.6. Even if you don’t want to listen to it, you can’t stop it: You have no earlids. And that means you’ve just .6 left to listen to your own inner voice.”
4. It’s A Costly Business.
The European Union calculates a financial cost of over 40 billion ($52 billion) a year, in terms of lost working days, healthcare costs, impaired learning and reduced productivity. (Source: BIAMP)
The World Health Organisation estimates that the annual cost to Europe from excessive noise levels is £30 billion.
This includes “lost working days, healthcare costs and reduced productivity”.
Buried within that figure are a whole lot of sick days. Don’t believe us? Workers in open plan offices take 70% more sick days than home workers.
5. Multitasking Becomes (Even More) Difficult.
The more you attempt to multitask, the more likely you are to be distracted by environmental noise.
Using three different office conditions: a cubicled office, an open office with acoustic panel treatments treated open plan office and an untreated office, the study demonstrated that in spaces with a high Speech Intelligibility Index (indicating good speech intelligibility) such as open plan offices, workers’ performance actually suffered.
The study revealed that memory and complex cognitive functions suffered in environments with an STI of over 0.30, where it is easier to distinguish the content of surrounding conversations.
Untreated open-plan offices have an STI of up to 0.65.
7. Noise Can Be Tiring Work.
Noise is a stressor.
Scientists are in agreement that exposure to excessive noise levels stimulates our nervous system – raising blood pressure and releasing stress hormones.
This increase in decibels can damage tiny sensitive hair cells located in the cochlea, which are responsible for relaying sounds to the brain.
10. Noise Can Affect Our Ergonomics.
It’s not just laziness that can make us slouch and hunch over our desks – noise has been shown to affect our ergonomics.
A study published in The Journal of Applied Psychology found that workers exposed to prolonged noises typically found in open plan offices were less likely to make postural adjustments and were more susceptible to slumping at their workstations – risking musculoskeletal disorders.
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