Understanding Window Types

With a broad range in window operations from fixed to tilt turn, Solar Innovations® offers countless custom configurations for both commercial and residential applications to enhance any space. However, with all these choices sometimes it can be hard to decide which is best for your needs. First you need to understand all the options.


Casement windows are one of the most popular styles in the world today. This system has been in existence since the beginning of the 18th century. They are hinged at the side and will swing inward when opened. Casement windows are excellent for natural ventilation strategies, especially in hot climates. They can be hinged to open outward and angled in order to direct breezes into the building.

Conservatory casement windows


Awning windows hinge at the top of the frame, allowing the bottom to be pushed outward. There is usually a lock on the interior, which can be unlocked and the window will push to the outside. They are a popular choice for in-system windows in greenhouses, conservatories, sunrooms, and other Glass Structures. These windows operate like vents, naturally allowing for air circulation. Cool air can enter through windows place lower on the structure, while hot air escapes through awning windows placed at the ridge of the structure.

Greenhouse Awning Windows


The beauty of a tilt turn window is its dual action. Glancing at it, one cannot tell that the window has two functions. The window will swing inward when opened like a casement, with a screen on the window’s exterior. The window can then be hinged at the bottom and open inward at the top. Both actions activate by the turn of a lever, which controls all the mechanics within the frame.

Residential Windows


Windows hinged at the bottom that tilt in are called hopper windows. They are often paired with other fixed or operable windows and doors or incorporated into transoms. Basements are another popular use for hopper windows, essential for light and ventilation, and the hopper window fulfills both needs in the limited space typically provided by basements.

Commercial tilt-turn Windows


Fixed windows are non-operable, meaning they can’t be opened. This type of window is often found in conjunction with the other types of windows in a mulled system. They are ideal for commercial applications that have several windows to let in light but don’t want them to be operable such as office buildings, shopping malls, and restaurants, just to name a few.

All our window systems come with screen options and can be used in mulled systems.