Skylight installation depends particularly on the type of skylight or roof window you wish to install. Today, there are different types of skylights available in the market, but these are broadly categorized as deck mounted skylights and curb mounted skylights, when it comes to the process on installation. The shape and structure of the skylight, roof slope, and type of insulated panel are the factors considered in installing different types of skylights. Skylight installation for the deck mounted roof windows can be achieved on roofs with a 14-85 degrees slope. This is one of the most popular types of skylights, and features built-in wooden frames and insulated glass lens that can be mixed with a protective cladding and mounted directly on the roof deck. Engineered flashings are available separately that integrate with the roofing materials to provide the most powerful and weather tight installation. Curb mounted skylights are ideal for roofs with minimal or no slope. Curb mounted skylight installations are achieved on roofs with a maximum slope of 0-60 degrees. These are skylights with insulated glass lens, which are combined with a durable metal frame, and mounted directly to the site-built curb. Separate engineered flashings are available with typical site-built curbs that can be integrated with roofing materials for a perfect, weather-tight installation.