Roofing refers to the materials places on the top of a building or structure to keep water (liquid and snow/ice) from enter the building damaging the interior of the building.  Three common roofing materials are:

• Metal Panels 
• Shingles 
  • 3 tab
  • architectural
  • cedar
• Tile
  • slate
  • ceramic
    

Two common framing methods are:

• trusses
• rafters

The common three panel shingle is relatively easy to use and the most common roofing material until recent developments have lowered the cost of metal roofing.