Hoardings

Hoardings: A hoarding is a temporary wooden structure such as a fence around a construction site or a roof over castle ramparts to deflect flaming arrows. In the UK, hoardings also refers to billboards. Note: Hoardings does not shares its etymology with hoard.

The whole area behind the hoardings was like this - rides in pieces, towers of fiberglass detritus sandwiched between layers of aerogel.

A Book for Today: Makers by Cory Doctorow