BUILDING ENVELOPE


Other advantages of installing a ventilated wall include reducing structural movement of the building and extended lifetime of the facade. In wet weather, the air flow allows the eterior walls to dry quickly, preventing a build-up of condensation. Ventilation around windows and doors can also reduce condensation and humidity coming from inside and outside the building.


TIPS FOR ADAPTING YOUR HOME TO A CHANGING CLIMATE As you are designing and specifying your new home or looking to make changes or upgrades, bear in mind these points:


• Opt for heat-resistant materials where possible


• Ensure that existing structures have some allowance for heat expansion


• Think about the importance of insulation for walls, windows and the roof cavity which can help to stop heat flowing through the building’s fabric


• Take the orientation of the building into account, especially south facing walls


• Look at traditional materials and building methods which have been effective in hot climates. These


include concrete, brick, tile and thick plaster as well as the use of lighter coloured materials on the exterior to reflect the sun


• Incorporate active shading to keep the heat out – everything from shutters and awnings to deciduous trees


• The impact of climate change varies by region. Homes in coastal areas, for example, need materials that can withstand high levels of moisture, salt and potential storm surges. Since 2021 government guidelines for new homes have included minimising excess sunlight in the summer, for example by setting limits for window sies as a proportion of the floor space. The new Future Homes Standard’s fabric first’ approach applicable to all new homes built from 2025, with minimum standard U-values addresses improvements to insulation and efficiency. or eisting properties extensions and the replacement of thermal elements such as walls floors or windows have to meet the new fabric efficiency standards. Achieving these will be challenging, but innovations in materials and construction techniques are providing new solutions.


Lisa Grosse is brand manager at Cedral


nov/dec 2024


www.sbhonline.co.uk 33


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