Glossary of Skylight Terms S – W

Self-Flashing

These are self-sealing components that provide waterproofing. They form a watertight connection without the need for additional parts such as eaves or special fittings.

Shades

Pleated shades, roller shades, and LightBlock shades can be used on windows of any size and shape, including skylights and arched windows. They easily adjust light, creating the necessary amount of natural lighting, from soft diffused light to complete darkness.

Silicone

A synthetic compound made of siloxane, widely used by roofing specialists and skylight installers to form waterproof seals. It is applied to seal glass with aluminum frames in skylights, as well as cracks and damages in glass, nail or screw holes, and to seal standing seam systems.

Skylights

These are light structures made of glass and framing elements, which may include both sloping and vertical surfaces. Skylights are typically installed in roofs to let natural light into the building. In addition to serving as a source of illumination, skylights also play an architectural role, creating a bright and airy atmosphere inside. Sunlight enters through the skylights, lighting up areas of the building where windows or other light sources might be absent.

Also known as: tubular skylights, dome skylights, skylight tube, custom skylights, round skylight, roof skylight, sky tunnel skylight, new skylights, acrylic skylights, home skylights, vented skylights, skylight dome, skylight window, venting skylights, motorized skylights.

Step Flashing

A waterproofing system used during roof installation to protect against leaks at the junctions where the roof meets vertical surfaces like walls or chimneys. The main principle is alternating L-shaped metal plates and roofing material along the vertical surface. These plates are laid in layers to form a strong waterproof barrier.

An important advantage of step flashing is the absence of the need for sealants, which can lose their properties over time.

Tempered Glass

Glass known for its increased resistance to impact and damage. This strength is achieved through a special manufacturing process: the glass is first heated to high temperatures and then rapidly cooled. This treatment significantly increases its durability and makes it more resistant to mechanical stresses. When tempered glass breaks, it shatters into small fragments with smooth edges, which are not dangerous.

Truss

A rigid framework designed to support various architectural structures. The main purpose of a truss is to evenly distribute the pressure exerted on the structure, thereby enhancing its strength and stability.

Tubular Skylight

This is a compact lighting device designed for natural illumination. Tubular skylights have a small, tube-like form. The structure includes a reflective tube through which daylight is transmitted from the roof directly into the interior. Thanks to specialized technology, light is efficiently dispersed along the entire length of the tube, brightening the space inside a home or office.

Underlayment

This is an additional layer laid under the main roofing material, such as tiles or shingles. Its primary function is to improve the overall waterproofing of the roof.

Materials such as bitumen paper or ice and water shields can be used as underlayment. These materials are applied around roofing elements like skylights to ensure reliable thermal insulation and protection from leaks.

UV Light

Ultraviolet radiation can cause materials and furniture to fade over time. VELUX skylights with their special glazing, along with the use of blinds, are reliable ways to protect against this detrimental effect.

Velux

An international company specializing in the production of skylights, Velux was founded in Denmark and has its headquarters in Fort Mill, South Carolina, USA. As one of the leading manufacturers of glass skylights in the US, the company offers solutions for all types of buildings that require skylights up to 4 × 4 feet in size.

In addition to skylights, the brand also provides a variety of accessories, such as solar-powered ventilation systems, solar-powered blinds, and other innovative products that make skylight use convenient and efficient.

Ventilation

This is a system for air exchange within a room, which can occur naturally or mechanically. Its primary function is to maintain the movement of air currents that improve air quality in enclosed spaces.

With effective ventilation, air does not remain stagnant but is regularly replaced by fresh air, which positively affects the health and well-being of occupants. In some cases, air can also pass through air conditioning systems, helping to maintain the required temperature and humidity levels in the room.

Venting Skylight

A device that provides natural ventilation and temperature regulation within a room. It is hinged at the top, with the bottom opening through a special mechanism. This allows fresh air to enter easily, helping maintain a comfortable indoor climate.

Also known as: venting skylights, skylight vent, opening skylights, vented skylight, operable skylights, electric skylights.

Wrapping a Skylight

This is the process of laying roofing underlayment or bitumen around the skylight frame or curb. The purpose is to significantly reduce the likelihood of condensation formation and provide additional protection in adverse weather conditions.

Wrapping a skylight prevents water from entering through gaps and joints around the skylight, which is particularly important during heavy rains or snowfall.