- 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
Henlow
Henlow is a town and civil parish in the Central Bedfordshire district of the region of Bedfordshire, England regarding 10.75 miles (17 kilometres) south-east of the county town of Bedford. The 2011 census gives the population as 2,253 for the village as well as 3,815 for the parish. The parish consists of RAF Henlow which part of Henlow Camp located eastern of the A600 roadway. RAF Henlow is located close by, however is nearer to the village of Stondon. The civilian settlement of Henlow Camp has matured close to the RAF station. There is a health farm in Henlow at Henlow Grange, part of the Champneys team. There are 3 pubs. There are several concepts regarding the origin of the name Henlow. Henna hlaw is one, implying in old English "Hill of birds". Henlow was also often made use of to indicate a tomb. The parish church, parts of which are 13th-century, is devoted to St Mary the Virgin.