The danger of artificial grass gardens explained - and how to reduce risk
A fifth of UK residents (21%) have already replaced their natural lawn or plan to lay artificial grass, and a further fifth (19%) would consider making the switch, research by insurers Aviva found.
Elsewhere, more than a quarter (27%) of those questioned have already replaced part or all of their garden with a non-permeable driveway such as tarmac, with a fifth open to the change.
However, experts urge homeowners to take measures to prevent flooding which could lead to a home insurance claim and an increase in premiums.
Both artificial grass and non-permeable driveways make it harder for water to be absorbed, leaving areas in the home or nearby at risk of flooding during heavy rain. However, nearly half of the 2,004 people questioned (44%) had no idea artificial grass increased flood risk.
Flooding is increasing across the UK, particularly in the summer, data from Aviva shows.
Over a third of home insurance flood claims now occur between June and August, the insurer found, despite the official flood season occurring between October and March. It suggests climate change is having an impact on the UK’s properties.
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While many living near rivers and lakes are alert to flood risks, one in five properties is actually at risk from surface water or flash floods, Aviva said.
Jason Storah, CEO of general insurance at Aviva for UK and Ireland, said: “At times of heavy rain in urban areas, drains can rapidly become overwhelmed if the water cannot be absorbed, causing flooding outside and in the home.
“As our climate changes, periods of extreme weather are likely to increase, including heavy downpours and higher temperatures. Our flood mapping technology shows that surface water flooding is on the increase and it can be harder to predict, so it’s important to be prepared.”
The number of people who had or were considering laying artificial grass had risen from 18% to 21% in the last year, and those who had or wanted a non-permeable driveway was up from 25% to 27%, Aviva found.
Convenience and low maintenance were the main reasons for the switch to fake turf, and driveways were being extended or installed to make space for extra vehicles.
Artificial grass laying tips
To mitigate the risk of flooding, homeowners are urged to plant partial areas or look at permeable materials.
Aviva provided these tips:
Consider a border or a drain: Having a border around your drive or fake grass or installing a drain will help rainwater to run off during heavy downpours, reducing the flow of water into street drains, and may help stop water from entering your home.
However, don't plant trees or large shrubs close to your home or outbuildings to prevent roots damaging your property and potentially causing subsidence. (We have a guide on how to avoid subsidence when planting in your garden this summer).
Choose more permeable materials: Gravel or block paving allows rainwater to soak through to the soil below to help reduce the risk of surface water flooding.
Collect rainwater: A water butt will help stop drains becoming overwhelmed, plus you'll save money on watering your garden and animals love rainwater!
Check your home’s flood risk: The Environment Agency has this information.
Mr Storah added: “Even the smallest of planted or permeable spaces can help make a difference. Climate-ready gardens can play an important role in helping to mitigate the impact of heavy rain and reduce the chance of a flood from happening at home."
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