The roof install protects your home from rain, snow, sunlight and extremes of temperature. It can take on a variety of forms, including flat, pitched, vaulted and domed. It also can be made from a multitude of materials and can incorporate a wide array of shapes and colors.

The most visible aspect of a roof is the shingles, but there is more to it than that. A roof consists of multiple layers that work together to keep water out, control heat flow and regulate moisture. The anatomy of a roof is more complex than most people realize. In this article, we will cover the various roof layers (including their names) and how they function as a system to keep your house warm, dry and comfortable.

Essential Steps: What to Expect During a Roof Install

A new roof is installed in a particular order to maximize its effectiveness. The first layer is the roof decking, or sheathing. This is the foundation for the rest of the roofing materials and components to be installed on it. The next layer is the ice and water barrier, or underlayment. This is a thin, self-adhering membrane that goes over the drip edge and prevents water leaks in cold climates.

The valleys on a roof are important areas for water runoff, so they must be waterproofed. This is done by putting on underlayment and felt paper. Metal flashing is then placed over the ridges and vents, and the edges of the valleys are sealed with caulk to prevent water seepage.