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A whirlpool hot tub in the bathroom or an outdoor kitchen on the patio are building equivalents of glass windows built into the roofline, which some homeowners consider to be a luxury. However, skylights and roof windows are much more than a luxury, particularly in areas with little natural light or in home building where there is a restriction on the amount of wall space that may be used for windows.

The presence of skylights may mean the difference between a bright, welcoming place and a gloomy dungeon in a second-story living area buried under sloping rooflines.

Skylights may be the greatest option for bringing adequate natural light into rooms in a house constructed between closely spaced adjacent homes.

Skylight shafts may provide much-needed natural light into the middle of huge areas in a one-story home with an open-concept floor plan.

Terminology

The numerous names that are used might sometimes be confusing for homeowners who are thinking about installing glass along their roofline. When window makers don’t utilize the phrases consistently, it doesn’t help. While the words skylight and roof window are sometimes used interchangeably by certain manufacturers, there are some distinct and significant variances as well.

While there are exact structural criteria that separate roof windows from skylights, the following differences are reasonably typical in the current construction trades:

A skylight is a permanent window that is incorporated into the rooftop. Although there may be venting alternatives, the window does not open. This kind of window may be referred to as a rooflite in Europe.

ceiling window

A rotating awning-style device is really used to open roof windows most of the time. It could even have window screening, much like an awning window installed in a side wall. However, some manufacturers refer to this particular style of window as a vented skylight.

luminous shaft

This phrase describes a structural modification where a walled shaft connects a room ceiling to a skylight or roof window by passing through space between roof trusses or joists. A pursuit is another name for this shaft. This design is often employed in one-story dwellings, where a framed and completed shaft connects a horizontal opening in the ceiling to a window that is fixed on the roof. The structure necessary for a shaft may significantly increase the price of a skylight.

window in a tube

In this more basic and affordable version of a light shaft, a flexible reflective tube connects a tiny bubble dome window that is installed into the roofline to a lower ceiling. An external light source for a tiny bathroom, closet, or laundry room is often provided via a tube skylight. This is a fairly affordable choice.