Types of Windows
Double hung (sash windows)
These are one of the most common types of windows. They feature two sliding sashes that move independently of each other, in an up and down motion.
Classic in style, double-hung windows have an upper outside sash that slides down and a lower inside sash that slides up. Hidden springs, weights, or friction devices help lift, lower, and position the sash. With certain types, the sash can be removed, rotated, or tilted for cleaning. If only one sash slides, the window is called "vertical sliding" or "single-hung."
Pros
- Are key-lockable
- Can be adjusted to let in as much or as little air as you like
- Allow room for a flyscreen
- Most window coverings are suitable
- Available in timber, aluminium and the new energy efficient UPVC
Cons
- Can start to stick as they get older
Horizontal Sliding
Sliding windows, as the name suggests, slide horizontally along a runner. They are suited to most architectural styles and are usually chosen for their versatility.
Only half of the total window may be opened for ventilation at a time.
Pros
- Low maintenance - due to their simple design
- Take up little space
- Inexpensive window option
- Are key-lockable
Cons
- Can be unattractive
- Prone to finger marks
Awning/Hopper
Awning windows open horizontally outwards with a chain winde and tilted out towards the bottomr. These chains hold the window in place. They are often used in hard to reach spots, or when furniture obstructs access. A top-opening style, typically placed low on a wall, is called a hopper window
Pros
- The chain winder holds the window firmly ajar to prevent slamming
- The window can be locked ajar
- Key-lockable
- Opens outwards
Cons
- Will only open up to a certain point
Louvres/Jalousie
Louvre windows come in panels of slatted glazing that can be opened and closed in unison. They were used as a way to convert verandahs into sleep-outs and are common in beach homes everywhere.
Pros
- Modern louvres seal tightly
- Allow maximum ventilation when open
Cons
- Older louvres prone to draughts
- Offer poor security - although modern products are trying to combat this
- Chilly and drafty in cold climates
Bi-folds
Bi-fold windows, like bi-fold doors open either inwards or outwards, in a concertina fashion. Their purpose is to let in as much air and daylight in as possible.
Pros
- Good for entertaining - help connect inside and outside
- Are key-lockable
Cons
- Bi-folds aren't suitable to areas that are directly exposed to the elements
- Expensive
Casement
Casement windows open outwards to a 90-degree angle. A metal rod is used to hold the window in place. Hung singly or in pairs, casement windows are side-mounted on hinges and operated by cranks that swing the sash inward or, more commonly, outward. They open fully for easy cleaning and offer excellent ventilation because they can "scoop" in breezes.
Pros
- Can open right up - fantastic form of ventilation
- Match heritage and colonial style homes
Cons
- Flyscreens are not included, they need to be custom made
- Not key-lockable
Fixed pane
Fixed pane windows, as the name suggests, are fixed in place. They can not be opened.
Pros
- Can be any shape or size, as movement is not an option
- Allow any kind of window dressing
Cons
- Can't be opened
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