- Describe the proper way to inspect a roof systematically
- Identify common roofing defects including alligatoring and fishmouths
- Explain the proper procedure for roof tear-off
- State the maximum number of shingle layers allowed by most codes
- Describe the purpose of roof coatings and warranty inspections
Lección 1
Roof Inspection Procedures
Systematic Roof Inspection
The proper way to inspect a roof is to follow a systematic procedure starting from the ground level, moving to the interior (attic), and then the exterior roof surface. A thorough inspection identifies problems before they cause interior damage.
Inspection Report
The purpose of a roof inspection report is to document the current condition of the roof, identify deficiencies, and recommend repairs or replacement. A complete inspection report includes photographs, measurements, material identification, and estimated remaining service life.
Key areas to inspect:
- Flashing at walls, chimneys, valleys, and penetrations
- Membrane or shingle condition - tears, blisters, missing granules
- Drainage - gutters, downspouts, scuppers, interior drains
- Sealants and caulking - cracking, separation, deterioration
- Ventilation - blocked soffits, damaged vents
Proper Overlap for Roll Roofing
The proper overlap for roll roofing is a minimum of 6 inches at side laps and 12 inches at end laps. Roll roofing is commonly used on low-slope structures like sheds and porches. Inspect for curled edges, cracking, and separation at laps.
Inspect roofs systematically - ground level first, then interior/attic, then the roof surface. Document all findings with photos and measurements. Focus on flashing, drainage, membrane condition, and ventilation as the most common failure points.