traditional rectangular skylights

Traditional rectangular skylights can provide daylight, views, aesthetics and… ventilation. Recent technologies have improved their performance: heat absorbing tints, double and triple insulated glazed panels, low-e coatings… These recent features allow huge improvements relatively to older skylights, reducing or overcoming potential negative impacts.

Problems with traditional residential skylights

Traditional skylights with a bad design and improperly installed are prone to heat Traditional Rectangular Skylights losses and unwanted summer heat, as well as condensation and air-leaking.

See, for details on these drawbacks and the ways to overcome them: Skylights & Problems and Drawbacks

Image credit: Energy Star

Location and sizing

Conventional rectangular skylights demand proper sizing and a convenient location in the roof.

See:

Skylight Location
Skylight Glasses
Skylights, Windows and Climates Zones
Skylights and rainy cold climates

Glazing

Qualified skylights use high-efficient glasses…

See: Skylight Glasses and Selecting and buying skylights

Traditional skylights and ventilation

Rectangular skylights have an important advantage over modern tubular skylights. They provide natural ventilation and cooling possibilities and may also contribute to a proper moisture balance by allowing humid air escape. All that for a minimal or no additional cost…

Most rectangular traditional skylights open outward at the bottom, but some vent through a small, hinged panel. These skylights may be opened manually (with a chain, a pole, or a crank) or automatically (with electric motors, pneumatic devices or even through devices incorporating moisture sensors to automatically close the skylight).