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Steep-slope roofing

There are six generic classifications of steep slope roof coverings. 

  • Asphalt Shingles
  • Clay tile & Concrete tile
  • Metal Roofing
  • Slate
  • Wood shake & wood shingles
  • Synthetic

Steep-slope roof systems typically are composed of individual pieces or components installed in shingle fashion. Steep-slope roof assemblies typically consist of three primary parts:

  • Roof deck — a roof deck is the structural substrate and usually is a wood-based material such as plywood or oriented strand board (OSB).
  • Underlayment — underlayment provides temporary protection until a roof covering is installed and provides a secondary weatherproofing barrier. Sometimes underlayment is referred to as “felt” or “paper.”
  • Roof covering — the roof covering is the external water-shedding material.