- Climate - If your window faces south, it will be subject to direct sunlight for a lot of the day. This tends to cause the sealed unit to fail more quickly – a south-facing window may last between 10-25 years. This is because the spacer bars will twist as the temperature rises and causes the adhesive holding them together to eventually fail.
- Moisture - Windows in kitchens and bathrooms tend to fail more quickly because they come into contact with moisture more often. For example, if water gets on your windowsill when you shower, the seal around the glass will come loose more quickly if it’s constantly wet.
Fakenham
Fakenham is a market community as well as civil parish in Norfolk, England. It is located on the River Wensum, around 19 miles (31 kilometres) north eastern of King's Lynn, 19 miles (31 kilometres) southern west of Cromer, and also 25 miles (40 kilometres) north west of Norwich. The civil parish has an area of 3.49 sq mi (9.0 km2) as well as in the 2001 census had a population of 7,357 in 3,292 households, the population raising to 7,617 at the 2011 census. For the functions of city government, the parish falls within the area of North Norfolk. The name Fakenham is Saxon, perhaps indicating Fair Place/Place on a Fair River, or Hamlet (Ham) on the river (Ken) Fa/Fair (Fa).