The arrival of warmer weather is always welcome, but when temperatures begin to soar keeping our homes comfortable can quickly become a challenge.
With the UK currently bang in the middle of a hot spell, many households will be searching for ways to stay cool.
Door and window specialist Joseph Holman from Green Doors, is sharing his simple ‘caveman method’ for beating the heat. Here's everything to know about how it could your secret saviour this heatwave and beyond...
What is 'the caveman method'?
Inspired by the naturally cool conditions found in caves, the 'caveman method' focuses on keeping the heat out during the day and making the most of the colder evening air.
"The golden rule of the caveman method is pre-cooling and early prevention" shares door and window specialist Joseph Holman.
To keep rooms as cool as possible, blinds should be closed no later than 9am, although it’s even better to do so before sunlight reaches that side of the house. West-facing rooms are particularly vulnerable to overheating later in the day, when the afternoon and evening sun is at its strongest.
Closing blinds and windows early helps trap cooler indoor air before outside temperatures begin to climb. "Once that heat gets in, it’s incredibly difficult to get out" explains Joseph.
Does it still work effectively for smaller rooms and box rooms?
Jacob explains how consistency is even more important in compact spaces. Smaller rooms contain less air, so they tend to warm up quicker when exposed to direct sunlight or hot air from outside. Keeping blinds drawn and windows closed during the hottest part of the day helps prevent temperatures from rising too rapidly.
"Just ensure you don't trap any active heat sources inside with you," he urges.
What do you do after the sun goes down?
The key is to create effective cross-ventilation once outdoor temperatures begin to drop. Open windows on opposite sides of the flat or house to create a natural wind tunnel that flushes out the residual warmth, explains Joseph.
This encourages cooler evening air to flow through the home. Leaving them open overnight can help cool the building’s structure, making it more comfortable the following day.
Just note: Leaving windows open overnight is not recommended for those with ground level rooms, as it poses a burglary risk.
What are the best companion hacks to boost the caveman method?
External shading can make a significant difference. Where possible, consider using awnings, shutters or even large potted plants positioned outside to reduce direct sunlight. Indoors, reflective window film or even a simple layer of cardboard placed behind curtains can help bounce heat away from the room.
Joseph explains: "The absolute best companion hack is blocking the sun before it hits your window glass."
What hidden indoor heat sources will ruin the cave environment?
Household appliances, electronics and lighting can all contribute to unwanted heat build-up. Items such as washing machines, dishwashers, computers and older-style light bulbs generate warmth while in use. "Switch off unneeded appliances at the plug to keep your cave truly cool," advises Joseph.
What are the long-term, structural alternatives for these problem windows?
Invest in high-performance, sustainable glazing. ‘If you want a permanent fix, look into modern glazing advancements. Upgrading to solar-control glass, installing windows with integrated blinds (built between the glass panes), or adding external architectural shutters will permanently manage solar heat gain."
As temperatures continue to rise, a few small adjustments can make a noticeable difference indoors. By combining early prevention with smart ventilation, Joseph says homeowners can keep rooms cool, sleep more comfortably and reduce the heat this summertime.
Cooling summer essentials
Comfortably Cool 1 Tog Duvet
ChillPill 3-in-1 Fan, Mist & InstaChill System
DREO 7500 BTU Portable Air Conditioner
