Recent Studies on Temperatures in HDB Rental Flats Versus Other Types of Flats

36 Ms He Ting Ru asked the Minister for National Development in view of record-high temperatures in Singapore (a) whether recent studies have been conducted on the temperatures in HDB rental flats in comparison to other types of flats; (b) if so, what are the results; and (c) if not, whether the Ministry will commission such studies to better understand the effects on such flats.

Mr Desmond Lee: To prepare Singapore for rising temperatures, the Government adopts a science-based and proactive heat mitigation and adaptation strategy.

The Housing and Development Board (HDB) conducts environmental modelling for all new flats, including rental flats. This guides the siting of flats and design of building façades layouts to harness existing wind corridors and optimise wind flow. We also adopt strategies, such as orienting residential blocks in the North-South direction to reduce heat gain from solar radiation and maximise ventilation in flats and around the estate.

Over the years, HDB has intensified our efforts to mitigate the effects of climate change and create a better living environment for all our residents. Under the HDB Green Towns Programme, HDB is studying the application of cool coating on the façades of around 130 HDB sold and rental blocks. Previous trials indicate that this could potentially reduce the overall ambient temperature by up to 2°C. The learning points from the pilot will help HDB formulate its plans for the wider application of cool coatings in HDB towns. HDB is also introducing more greenery to the top decks of selected multi-storey car parks in HDB estates to mitigate heat gain.

HDB is committed to building a sustainable and liveable environment for all our residents.