Roofing

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.