Roofing warranties

Here at Corrales Construction LLC, we adhere to a strict integrity roofing system guideline to ensure that you are getting only the best for your home. Explore the requirements we meet when installing your roof below.

Waterproofing Underlayment

  • Must be installed at the eaves if required by local building code, or when the roof system is in a snow zone, or north of the following states: NC, TN, AR, OK, NM, and AZ
  • Must be installed at all roof penetrations
  • Must be applied as a valley liner for closed or woven valleys
  • Is recommended as a valley liner for open valleys; otherwise, open valleys must be installed in accordance with NRCA Roofing Manual specifications

Flat Roof Sections

  • If a Flintlastic® System is part of the job, up to ten (10) squares will be covered as follows:
    • – Flintlastic SA 2-ply system (nailbase and cap sheet) for 12 years
    • – Flintlastic SA 3-ply system (nailbase, plybase and cap sheet) for 15 years
    • – Flintlastic SA 3-ply system (nailbase, midply and cap sheet) for 20 years
    • Refer to the Commercial Systems Specifications Manual for the warranty duration for all other Flintlastic systems
  • Approved CertainTeed Commercial Systems Specifications must be used
  • Torch-applied systems must be installed by a CertainTeed Commercial Roofing approved contractor

Shingle Underlayment

  • CertainTeed Roofers’ Select™, DiamondDeck™, RoofRunner™, or ShingleFelt™ must be installed
  • If CertainTeed products are not available, then the underlayment must meet ASTM D4869 or ASTM D226 (non-perforated) or ASTM D6757 standards of performance


  • Must be installed to meet applicable model code requirements or building code standards
  • Must have adequate intake and exhaust vents to achieve proper net free ventilation area
  • If ridge ventilation devices are installed, they must be CertainTeed Ridge or Rolled Ridge Vents


  • Must be CertainTeed shingles with a warranty duration of at least 25 years

Hip and Ridge Caps

  • Must be CertainTeed pre-cut hip and ridge accessory or made from CertainTeed shingles

Starter Course

  • Must be CertainTeed pre-cut starter or made from CertainTeed shingles

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