Sliding Window / August 7, 2018 / Marc Girard
Window grills vary greatly in price depending on the size of the window and the style of the grill but probably the average is $150$200 per window. Most insurance policies require either a keylocking window lock or security grill. This is sometimes in the fine print. If you dont have one of these forms of security you may be giving your insurance company an easy way to deny your claim and you will be wasting the money you pay on your insurance premium.
Sliding window locks are often called vent locks as they allow the window to be locked slightly open for ventilation. The recommended gap is 100mm but never have more than 150mm. The theory is that if a head can get through a window a person can squeeze through. The venting position is not as secure as when the window is shut and locked. Therefore you should only leave your windows locked open you are at home.
Primarily it may be the environment that affects the choice of windows. A harsh environment calls for windows that are inside the house rather than exposed to the sun wind and temperature shifts whereas a mild environment allows the use of windows that are exposed to the outside. Ventilation is another important point to be considered while choosing windows. Windows fitted on opposite walls allow for cross ventilation and help keep the rooms cool.