National Roofing  Thirty years of quality service, and counting.

Roof Systems


This section of our website is intended to serve as an informational source to learn about roof layers and their significance in creating a structurally sound roof.
Select a roof system you wish to learn more about, roll over the different roof layers, and read each layers definition.

A roof system includes all of the components in a successful roof, from waterproofing membranes to coverage surfaces, such as gravel. Most owners and property managers recognize the importance of this complete roofing investment that protects their buildings and its contents from water damage. Although a manufacturer and/or contractor's warranty may have been acquired, the owner is ultimately responsible for proper roof care and maintenance. Roofing contractors have become a valuable resource in helping these owners manage their assets and offer owners routine scheduled roof inspections and maintenance programs.

A good roof system requires proper design, quality materials, quality application, and bi-annual maintenance to perform successfully.

We’ve included definitions and explanations for the components of a roofing system, so that when it’s discussed, you’ll know what’s meant.
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