The end of flex-pipe for hot asphalt must extend which distance relative to the wall?

The end of flex-pipe for hot asphalt must extend which distance relative to the wall?

• A. Below the wall
• B. Above the wall and onto the roof area
• C. Inside the wall opening
• D. Along the ground surface

Answer: (B)

Directing the end of the flex-pipe above the wall and onto the roof area keeps hot asphalt and its vapors away from the wall and any openings. This placement prevents drips from running down the face of the wall or into wall cavities, reduces the chance of heat or flames contacting combustible materials on the wall, and gives the applicator a clear, safe area on the roof to work. If the end were below the wall or inside a wall opening, hot asphalt or vapors could vent into the wall space or drip into unwanted areas, creating fire, moisture, and contamination hazards. Extending the end along the ground lacks the proper clearance and ventilation, increasing slip, trip, and burn risks and failing to keep fumes and material away from the wall.

Directing the end of the flex-pipe above the wall and onto the roof area keeps hot asphalt and its vapors away from the wall and any openings. This placement prevents drips from running down the face of the wall or into wall cavities, reduces the chance of heat or flames contacting combustible materials on the wall, and gives the applicator a clear, safe area on the roof to work. If the end were below the wall or inside a wall opening, hot asphalt or vapors could vent into the wall space or drip into unwanted areas, creating fire, moisture, and contamination hazards. Extending the end along the ground lacks the proper clearance and ventilation, increasing slip, trip, and burn risks and failing to keep fumes and material away from the wall.