On May 25 , a family of four adults and one child in Wellingborough, Northamptonshire, narrowwly escaped injury when solar panels installed on the roof of their £600,000 newbuild home exploded into flames, completely destroying the roof. An off-duty firefighter, Robert Shipman, spotted the smoke and banged on the door, alerting the family who were on the first floor and unaware of the blaze. According to the Northamptonshire Fire and Rescue Service, five fire crews responded , and initial investigations suggest the fire started accidentally, with the record-breaking heatwave — temperatures reached 35°C across the UK — considered a possible factor.

The £600,000 roof that vanished in seconds

The Ring doorbell footage from the family's home captures the moment the solar panels erupted, with thick orange flames bursting through the loft hatch. The explosion occurred around 10:30 am on a Bank Holiday Monday, as reported by local authorities. Robert Shipman, the off-duty firefighter who first responded, told the press he had never witnessed such a sudden and complete roof collapse. The blaze also damaged at least four parked cars as burning tiles fell.

Off-duty firefighter’s DIY morning became a rescue

Robert Shipman was doing DIY at his own nearby home when he noticed a large cloud of smoke and rushed to the property. He banged on the door, evacuated the family and two pets, and helped neighboring residents. Two other off-duty firefighters also assisted. The family, who were on the first floor, had not realized the roof had been destroyed. The incident highlights the critical role of first responders even off-duty, and the speed at which such fires can develop.

35°C and a Bank Holiday Monday: Why heatwave conditions matter

The UK was in the midst of a record-breaking heatwave when the incident occurred, with temperatures reaching 35°C.. The Northamptonshire Fire and Rescue Service has not ruled out that the solar panels overheated, making weather a key focus of the ongoing investigation. According to the service, the fire started accidentally, but the specific role of extreme heat remains unconfirmed. This raises broader questions about the safety of solar panel installations during more frequent summer heatwaves, especially on newbuild homes.

What investigators haven’t ruled out about the solar panels

Initial investigations have not determined the exact cause, but overheating of the solar panels is suspected. The source reports that the fire service has not ruled out the possibility that the panels overheated. Police closed several roads near the A509 and advised residents to keep windows closed due to smoke. As of now, no manufacturer or installer has been publicly identified, and the specific model of solar panels involved is unknown. The investigation's next steps could reveal whether design flaws, installation errors, or heatwave extremes were the primary trigger.