Skylight / July 8, 2018 / Baptiste Allain
The acrylic dome is typically mounted in an aluminum frame which is in turn mounted on a box called a "curb." Once the hole is cut in the roof to the manufacturers specifications the curb is typically constructed on-site to raise the skylight above the level of the roof sheathing. Site-built or factory-supplied flashings are used to seal the roofing around the curb. Domed skylights are available in clear smoked bronze or other tints. Some domed plastic skylights are flush mounted which means that the lens piece and flashing piece are both made of plastic and then placed on the roof without a curb. The problem with this type is that they are loud and very susceptible to leakage.
Obviously skylights provide added day lighting and they may even offer ventilation. However heat gain and loss is also a consideration you should make. Many modern skylights feature sun tracking lenses or mirrored surfaces that provide light without heat loss or gain. Moreover whether a fixed skylight or similar alternative is better than a ventilated skylight is a question youll want to answer. Remember ventilating can help with temperature control but it is also important for preventing the buildup of moisture. Take some time to speak to your skylight or roofing professional so that you can be sure to choose the right skylight.
Since most skylights are meant to be installed on a roof with asphalt shingles you may need to pay extra for flashing if you have tile or metal roofing. When you think of skylight design you may think that only refers to the visible shape of the panel chosen; in fact there are many aspects to skylights that relate to the design and affect the usefulness of the skylight. Some skylights need to provide light for a large area while others have a different purpose. Learn all you can about skylights and skylight design as a consumer before you consult a professional. This will help you to understand better the decisions you will have to make. Skylights are beneficial to have in your home for many reasons.