The answer to 'what is roof installation' is the process of installing a new roof on a home or building. This involves removing the old roofing materials, preparing the roof deck, and then installing the new roofing system. This typically includes laying down a moisture barrier, installing roof shingles or tiles, and sealing all the edges and joints to create a weather-tight roof.
Roof installation is an important home improvement project that helps protect the structure and interior of a home from the elements. A properly installed roof can last for decades and add significant value to a property. It's a complex job that requires specialized skills, tools, and safety equipment, so it's generally best to hire a professional roofing contractor to handle the installation.