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Roof underlayment, ice barrier, and drip edge before shingles checklist

A pre-cover roof dry-in checklist for a clean accepted deck, approved underlayment and ice barrier, climate and code applicability, laps and fastening, eave and rake drip-edge sequence, penetrations, weather exposure, damage, and concealed-stage documentation before shingles.

6 items to check

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Deck condition and delivered dry-in products match the approved roof system

Critical item

Underlayment, self-adhered membrane, drip edge, flashings, fasteners, and accessories should be compatible with the accepted deck, roof slope, covering, weather exposure, warranty, and manufacturer system.

Ice-barrier applicability, locations, width, and continuity follow the adopted requirement and design

Critical item

Where an ice barrier is required or specified, its material, eave extension, valleys and other locations, continuity, deck adhesion, and treatment around penetrations should follow the adopted code, local climate rules, plans, and manufacturer instructions.

Underlayment coverage, laps, fastening, and transitions follow the selected instructions

Critical item

Courses, side and end laps, fastening pattern, cap fasteners where required, valley and ridge treatment, slope transitions, repairs, and exposure should meet the selected product and adopted requirements.

Eave and rake drip edge is continuous, lapped, fastened, and sequenced correctly

Critical item

Drip-edge material, corrosion resistance, dimensions, laps, corner treatment, fastening, relationship to underlayment, gutter, fascia, and rake should follow adopted requirements and the roof-system instructions.

Valleys, skylights, chimneys, vents, open holes, and overnight conditions remain watertight

Critical item

Dry-in work should integrate with prepared flashing details and protect all openings and transitions during construction, including temporary conditions before final flashings or roof covering are installed.

Damage corrections, permit inspection, and photo record are complete before covering

The owner record should show each roof plane and critical detail after correction, identify products and dates, document any required inspection, and establish that the dry-in was accepted before shingles concealed it.

Use this checklist after deck repairs and before shingles or another steep-slope covering hides the dry-in layer. Ice-barrier and drip-edge requirements depend on the adopted code, climate designation, roof geometry, local amendments, and manufacturer system. Do not walk a steep, wet, fragile, icy, or otherwise unsafe roof. Use ground-level observation, attic access where safe, dated contractor stage photos, permit inspections, and a qualified independent roof inspector when direct access is needed.

Reference standards

  • Approved plans and specifications, adopted state and local building code, permit and inspection conditions, authority having jurisdiction requirements, selected roof-system manufacturer installation instructions, and the signed contract
  • Adopted IRC or local roof underlayment, ice-barrier, and drip-edge provisions as amended by the AHJ
  • Selected underlayment, self-adhered membrane, drip-edge, flashing, fastener, and roof-covering manufacturer instructions
  • Tools

  • Signed contract, proposal, roof diagram or measurement report, product selections, permit, and approved change orders
  • Ground-level camera or binoculars, attic flashlight and moisture meter where safe, and dated contractor stage photos
  • Manufacturer installation and warranty documents plus inspection, delivery, invoice, and cleanup records