02/11/2012

Health Problems Caused By Indoor Clothes Drying

Think before you hang your washing round the radiator, that’s a key message from the findings of research carried out by the Mackintosh Environmental Architecture Research Unit (MEARU) at The Glasgow School of Art in partnership with academics at Strathclyde and Caledonian universities.

The research project looked at laundry habits across a wide demographic mix of residents in the West of Scotland and undertook detailed analysis of air quality and energy consumption relating to domestic laundry habits. It has highlighted three key areas in which our current habits of indoor laundry drying are causing problems: environmental, economic and health.

Draping washing on driers around radiators is common practice nowadays whether because the weather is too bad to hang it outdoors or the cost of using a tumble drier is too great. However, the impact of this seemingly innocuous action is something that more of us need to be aware of, and that house builders need to address.

It is a little known fact that the average load of washing will release around 2 litres of moisture into the air during the drying process. When draped on driers by radiators in ill ventilated rooms this can account for up to a third of the moisture in the air creating the conditions in which mould spores grow and dust mites thrive. Both of these are known causes of asthma. It also leads to increased use of energy, especially when radiators are turned up to help the drying process. Whilst opening a window can help address the moisture problem, this also leads to increased energy usage, (which most people would want to avoid as bills are rising exponentially), exacerbating fuel poverty which is a major issue in the West of Scotland where the research was carried out.

"Because of increased awareness of the energy consumption of tumble dryers many people are choosing to dry clothes passively within their home," says Professor Colin Porteous of MEARU. "This results not only in a severe energy penalty, because of increased heating demand, but also a potential health risk due to higher moisture levels."

The short term answers for someone wanting to ensure that air quality is compromised as little as possible include drying washing outdoors whenever possible; using energy efficient, condensing tumble dryers; and drying washing by south facing windows using natural light and heat or, better still, southerly balconies where these exist.

However, with the current UK trend towards airtight construction and smaller homes, which can intensify the moisture build-up from all sources, it is vital that steps are taken in new housing stock to make sure laundry can be dried in ways that will eradicate this major contributor to poor air quality. In a design guide published today the researchers offer a number of clear solutions to the problem. These include providing a drying space with its own heat and ventilation; providing individual and communal exterior covered drying spaces; upgrading balconies and sunspaces; returning to the provision of communal laundry facilities in high-density housing; ensuring there is heat recovery from grey water and solar energy capture and that energy efficient appliances fitted in properties. Meanwhile, one of the most important ways of addressing the problem in existing properties is to begin to fit them with proper ventilation.

The researchers are now discussing their findings with the social housing sector to encourage adoption of the proposals as the Housing Associations upgrade existing and build new stock. But if the problem is to be addressed more broadly then the Building Regulations need to be changed to strengthen the existing conditions for all new housing.

"Minor changes to the wording of the regulations would have multiple beneficial consequences," adds Colin Porteous. "Our research gives strong justification for the changes both in terms of health and wellbeing, and associated economic impacts. It is our hope that current statutory and advisory standards will be modified to take them on board ensuring a healthy and economically sustainable living environment."

(GK)

Related UK National News Stories
Click here for the latest headlines.

24 September 2008
EDF To Takeover British Energy
The Government welcomed EDF's proposed £12.5 billion takeover offer for British Energy Group and the British Energy Board's recommendation of the offer to its shareholders. The Government has committed to accept the cash offer of 774p per share for its 36% stake held by the Nuclear Liabilities Fund (NLF), subject to certain conditions.
22 February 2011
Energy Forum Marks Milestone In Efforts
Speaking at the International Energy Forum (IEF) ministerial meeting in Saudi Arabia today, UK Energy Minister Charles Hendry highlighted the importance of international efforts to stabilise the cost of energy sources.
12 October 2015
£200m Polar Research Ship To Be Built
The preferred bidder to construct a £200m state-of-the-art polar research ship has been named. Cammell Laird in Birkenhead has been selected as the preferred bidder for the project which will help the UK remain at the forefront of climate and ocean research.
02 November 2005
Government announces renewable energy funding
The government is to unveil plans for a £30 million funding package aimed at promoting renewable energy and reducing carbon emissions.
25 May 2011
Research Suggests Drop In Digital Radio Energy Use
The Government has today published the results of independent research on digital radio. This includes research by Intertek into the energy consumption of radios, which shows that products are becoming more energy efficient. In the models tested, the average in-use power consumption of tabletop DAB radios had dropped from 5.84 to 4.78 watts.