Roofing Components Encyclopedia

55 components with specs, common issues, and insurance claim relevance for restoration professionals.

Components

Flashing

• 3-Tab Shingles
  A guide to 3-tab shingles, the traditional single-layer asphalt shingle with three evenly spaced tabs per strip, once the industry standard for residential roofing and still found on millions of existing homes.
• Aluminum Flashing
  Roof flashing fabricated from aluminum sheet metal, valued for its light weight, natural corrosion resistance, and suitability for coastal and corrosive environments where galvanized steel degrades quickly.
• Apron Flashing
  A continuous piece of bent metal flashing installed at headwall junctions where a roof slope terminates at the base of a vertical wall, also used as the front base flashing at chimneys and skylights.
• Chimney Flashing
  A multi-part flashing assembly that seals the junction between a chimney and the surrounding roof, typically consisting of base flashing, step flashing, counter flashing, and a rear cricket or saddle.
• Copper Flashing
  Roof flashing made from copper sheet metal, valued for its extreme longevity, corrosion resistance, and distinctive patina, commonly used on high-end residential and historic buildings.
• Drip Edge
  An angled metal strip installed along the eave and rake edges of a roof that directs water runoff away from the fascia and into the gutter system.
• Kickout Flashing
  An angled diverter installed at the bottom of a roof-to-wall intersection that directs water into the gutter instead of allowing it to run behind the wall cladding.
• Skylight Flashing
  A multi-piece flashing kit that seals the junction between a skylight frame and the surrounding roof, typically including sill flashing, step flashing, head flashing, and a saddle or cricket on wider units.
• Step Flashing
  Individual L-shaped pieces of metal woven into each shingle course where a roof plane meets a vertical wall, creating a stair-step water barrier.

Shingles

• Architectural Shingles
  A comprehensive guide to architectural shingles (also called dimensional or laminated shingles), the most popular roofing shingle type in residential construction, known for their layered dimensional appearance and improved wind resistance over 3-tab shingles.
• Atlas Shingles
  An overview of Atlas Roofing Corporation's residential shingle lines, including the StormMaster series designed for impact and wind resistance and their Scotchgard Protector coating.
• Best Roofing Shingles
  A comparison of the top shingle brands and product types for residential roofing, covering asphalt architectural, premium designer, and impact-resistant lines from the major manufacturers.
• GAF Shingles
  An overview of GAF, the largest roofing manufacturer in North America, covering their main residential shingle product lines, warranty structure, and contractor certification programs.
• Impact Resistant Shingles (Class 4)
  Shingles engineered to withstand hail impact, tested and rated under UL 2218 with Class 4 being the highest rating. These products qualify for insurance premium discounts in most states.
• Owens Corning Shingles
  An overview of Owens Corning's residential roofing shingle lines, including the Duration series, TruDefinition, and their Platinum contractor network.
• Roof Shingles
  The primary weather-facing covering on most residential roofs in North America. Shingles are available in asphalt, metal, composite, rubber, and other materials, each with distinct performance characteristics, lifespans, and insurance implications.
• Rubber Shingles
  Roofing shingles made from recycled rubber (typically from tires) or EPDM, designed to replicate the look of slate or wood shake while offering impact resistance and lightweight installation.
• Synthetic Underlayment vs Felt
  A direct comparison of synthetic polypropylene roofing underlayment and traditional asphalt-saturated felt, covering durability, water resistance, installation, cost, and warranty implications.
• Valley Flashing
  Metal or membrane material installed in the channel where two sloping roof planes converge, directing high volumes of water safely down to the eave.