There are companies out there turning recycled newspaper into insulation panels.

Hundreds of the company's customers have complained of springy floors, leaks, missing insulation panels, poor drainage, unfinished gardens and, in some cases, serious structural faults.

It was not just the insulation panels that released deadly toxins.

The tower has insulation panels to prevent the chimney from getting too hot in late spring, which could threaten the wildlife living there.

Many of these relate to the materials used in the construction of the building, whose roof was made of so-called sandwich insulation panels containing polyurethane foam insulation.