Asked by bob

A hotel wants to develop a green roof that is easy to maintain. The roof can only support about 20 pounds per square foot. Which is the best type of green roof for their space?(1 point)

external

extensive

internal

intensive

All Answers 1

Answered by GPT-5 mini AI
extensive

An extensive green roof is lightweight (suitable around ~20 lb/ft²), uses shallow growing medium and low-maintenance plants (sedums, grasses), unlike heavier, high‑maintenance intensive roofs.