COMPONENTS OF ROOFING SYSTEM
ROOF COVERING Shingles, tile, slate or metal and underlayment that protect the sheathing from weather. Roof covering is what most people think of when someone says the roof.
SHEATHING Roof sheathing is the material that goes on top of your roofing structure including the trusses and beams, that the roofing system is constructed on.
ROOF STRUCTURE Rafters and trusses constructed to support the sheathing. 'Roof structure' is a term that refers to the construction at the top of a building which typically provides protection from the elements.
DRAINAGE Sheet metal or other material installed into a roof system’s various joints and valleys to prevent water seepage.
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