Applying hot asphalt with a mop should be done by which motion?

Applying hot asphalt with a mop should be done by which motion?

• A. Gliding
• B. Pounding
• C. Dabbing
• D. Slapping

Answer: (A)

Smooth, even coverage comes from a continuous, controlled transfer of the melted asphalt. Using a gliding motion—moving the mop in a steady, sweeping path across the surface—lets the asphalt spread evenly, forming a uniform film and avoiding lumps, air pockets, or hotspots. It also helps keep the temperature and tack consistent so the felt or membrane bonds properly. Pounding, dabbing, or slapping would create irregular coverage, high spots, air voids, and potential damage to the roofing layer.

Smooth, even coverage comes from a continuous, controlled transfer of the melted asphalt. Using a gliding motion—moving the mop in a steady, sweeping path across the surface—lets the asphalt spread evenly, forming a uniform film and avoiding lumps, air pockets, or hotspots. It also helps keep the temperature and tack consistent so the felt or membrane bonds properly. Pounding, dabbing, or slapping would create irregular coverage, high spots, air voids, and potential damage to the roofing layer.