- Impact from a stone or other object smashing the glass in a ‘bullseye’ effect
- The result of a break-in
- Extreme weather or changes in pressure causing a crack
- The sealed unit being ‘blown’, meaning that it’s no longer energy efficient due to air leaking out
Brora
Brora is a town in the east of Sutherland, in the Highland area of Scotland. Brora is a tiny commercial village, having at one time a coal pit, watercraft structure, salt frying pans, fish healing, lemonade factory, the new Clynelish Distillery (along with the old Clynelish distillery which is currently called the Brora distillery, woollen mill, blocks as well as a rock quarry. The white sandstone in the Clynelish quarry belongs to the Brora Formation, of the Callovian and also Oxfordian stages (formerly Middle Oolite) of the Mid-Late Jurassic. Rock from the quarry was used in the building of London Bridge, Liverpool Cathedral as well as Dunrobin Castle. When in operation, the coalmine was one of the most northern coalmine in the UK. Brora was the first place in the north of Scotland to have electrical power thanks to its wool sector. This distinction gave rise to the regional nickname of "Electric City" at the time. Brora additionally houses a baronial style clock tower which is a war memorial.