HOT BITUMINOUS
PROBLEM AREAS FOR CONTRACTORS
1. Temperature control of asphalt
SOLUTION: use infrared thermometers
2. Mopping Practices
SOLUTION: follow specs and ensure equipment is okay
3. Improper Flashing
SOLUTION: ensure proper height, length of flashing
4. Poor Interply Integrity
SOLUTION: do not install too hot and allow no foot traffic.
5. Dry Laps
SOLUTION: broom felts
6. Inaccurate Head Laps
SOLUTION: use chalk lines and check ply lines
7. Fire Safety
SOLUTION: check thermometers on kettles
8. Gravel Embedment
SOLUTION: embeded gravel quickly and don’t overheat asphalt
9. Poor Base Sheet Attachment
SOLUTION: conduct pull-out tests and relax sheets
10. Lack of Coping Moisture Barrier
SOLUTION: ensure blocking and cap attached properly