ASPHALT SHINGLE
Asphalt Shingle Inspection Checklist
Batch Problems (Patterns of deterioration involving only some shingles)
Biological Growth (Algae, lichen, & moss)
Bonding (about it, how to check it)
Cracking and Splitting (types & causes)
Factors Affecting Shingle Aging
Field Guide (PDF for sale)
Ice Dams (causes, prevention, & removal)
Performance Comparison (shingles that look alike don't perform the same)
Valley Types (open, closed, woven, California cut, etc.)
Warranties (Manufacturer's, Wind, & Contractor's)
Wind Damage (about, recognition)
CONCRETE TILE
Field Guide (PDF for sale $14.99)
Minimum Slope & Headlap
Tile Standards (installation
Walking Tile