CSLB C-39 Roofing ContractorLow-Slope RoofingMedium
A property manager wants to protect a newly installed EPDM roof membrane from foot traffic damage near a roof access hatch and rooftop HVAC units. What is the correct practice for walkway pad placement?
- AInstall walkway pads only at the roof perimeter parapet walls
- BInstall walkway pads along all traffic paths from the access point to each piece of rooftop equipment
- CWalkway pads are unnecessary on EPDM because the membrane is inherently puncture-resistant
- DInstall walkway pads only directly beneath each HVAC unit's condensate line
Show answer & explanationAnswer & explanation
Correct answer: B. Install walkway pads along all traffic paths from the access point to each piece of rooftop equipment
Walkway pads should be installed to protect the membrane along the entire path of anticipated foot traffic, connecting the roof access point to service locations such as HVAC units, to prevent punctures and abrasion from repeated maintenance visits.
Why the other options are wrong
- A. Parapet walls are not typical high-traffic maintenance routes.
- C. EPDM is durable but still vulnerable to repeated foot traffic and dropped tools, so pads are still recommended.
- D. Condensate lines are a separate concern; pads must cover the actual walking path.
Walkway Pad Protection
Reinforced membrane pads installed along anticipated foot-traffic routes on a low-slope roof to protect the primary membrane from wear caused by regular maintenance access.
- Placed from roof hatch/ladder to serviced equipment
- Reduces punctures, abrasion, and UV wear from foot traffic
- Common on EPDM, TPO, and PVC systems alike
Memory trick: Pave the path pads follow feet to equipment.