How Can A Flat Roof Installation Avoid A Heat Island Effect?

Daniel Bracewell • 20 August 2025

Whilst pockets of relatively extreme heatwaves are not uncommon in the UK, this year has distinctly challenged a lot of existing older houses designed with colder weather and less efficient heating in mind, and flat roof specialists are on hand to help provide a more comfortable indoor environment.


Officially defined as three consistent days where the maximum temperature exceeds 25 degrees Celsius in Manchester and the rest of the north of England, a
heatwave can be deeply uncomfortable to endure if you live in an urban area or a home not equipped to manage heat.


A major contributing factor to this is the
urban heat island (UHI) effect, which is where the use of asphalt, concrete and other artificial materials typically of darker, deeper colours coupled with a lack of trees to provide shade or vegetation to absorb the sunlight for photosynthesis leads to warmer overall temperatures.


This is particularly noticeable at night, as the heat releases more slowly from a surface that absorbs it than the overall air temperature. Because many homes are designed to retain heat, it can lead to a greenhouse effect within affected buildings, which makes them feel particularly warm.


Ultimately, a flat roof can help to fix this, as long as it is designed with cool roof principles in mind.


One of the most effective solutions is a functional roof which uses and channels this heat away from a building’s structure. A flat roof is ideal for fitting
solar panels, which use both the light and heat from the sun in various ways to generate electricity.


As well as this, flat roofs provide the perfect platform for a green roof, where trees, grass and bushes are planted onto the roof and help absorb heat, leading to a cooler room.


Finally, a lighter coloured roof can help reflect sunlight and heat away from your building, with some particularly effective functional white paints able to reflect over 90 per cent of the sunlight that hits the building and considerably reduce energy costs to cool the building.

flat roof specialists
by Daniel Bracewell 6 October 2025
Autumn may seem an odd time to start a flat roof garden, but it can be a great time to get it in shape, ready to bloom beautifully next spring and summer.
by Daniel Bracewell 17 September 2025
Find out how long different kinds of flat roofs last, as well as which materials offer the greatest longevity for your extension, home or garden room’s roof.
Asbestos Roof Removal Manchester
by Daniel Bracewell 14 July 2025
Asbestos roof removal work in Manchester needs to be undertaken safely, not just for your safety, but because failure to do so could lead to prosecution.
consult a specialist
by Daniel Bracewell 18 June 2025
A specialist green flat roof is not only aesthetically striking but it also can provide a wide range of functional and even economic benefits to homeowners.
green roof
by Daniel Bracewell 23 April 2025
Many people want to install a new flat roof or modify their existing roof into a sustainable green roof, but what plant would be best suited to the conditions?
flat roof
by Daniel Bracewell 13 February 2025
In September 2023, a popular live music venue was forced to close due to concerns on the grounds of safety, but a newly approved flat roof will remedy this.
conservatory repair specialists
by Daniel Bracewell 31 January 2025
There are many benefits of a flat roof, including being more resistant to temperature change so you don’t need to rely on conservatory repair specialists.
by Daniel Bracewell 14 January 2025
There are a lot of considerations when it comes to a flat roof, but throughout the entire life of the roof, does it ultimately result in better value for money?
flat roof specialists
by Daniel Bracewell 17 December 2024
Flat roofs are naturally extremely hard-wearing, but it always pays to ensure that they are adequately prepared for particularly harsh & cold winter conditions.
by Daniel Bracewell 28 November 2024
Some homeowners worry that installing a flat roof could be problematic when it is rainy, but here are some ways you can protect the roof during stormy periods.