UK — The Met Office issued a red weather warning, leading to some individuals in the UK attaching cardboard or reflective materials to their windows. Others smeared yogurt on their windows, an action advocated by chartered engineer Tom Greenhill for its ability to reduce solar gain.

Most UK homes do not have external shading, according to the Chartered Institution of Building Services Engineers. Ruth Shilston, global discipline lead at engineering consultancy Mott MacDonald, stated, "The UK needs sustained investment in infrastructure and public spaces so that our buildings, transport systems and cities are designed to cope with future heat."

New regulations on overheating in new residential buildings came into force in England in 2022. Researchers at Loughborough University found that externally shading a window with fabric can reduce internal temperatures by 6C, and that external shading is more effective than internal shading for temperature reduction. Trials funded by the British Blind & Shutter Association compared temperatures in two test houses on the university's campus, with researchers fixing various shades, including large, dark-grey fabrics, to the bay windows of one house while the other remained exposed. Greenhill said, "We still see ourselves as a mild and damp nation – that's not the case any more." He added, "The culture has got to catch up."

Mina Hasman, co-chair of RIBA's Climate Expert Advisory Group, said, "Shading is no longer being discussed simply as a matter of glare or privacy, but as part of compliance, resilience and public health." Hasman added, "That is a significant shift."

Kemp Sails, based in Dorset, traditionally produces yacht sails, but created a division named Shade Solutions. Shade Solutions uses fabrics typically manufactured for products sold in the Mediterranean and makes shade sails using techniques from yacht sail manufacturing, including a triple-step zigzag stitch. A large shade sail from Shade Solutions can cost several thousand pounds.