Green Roof Maintenance Costs

Ecoroofs are expected to be an important part of the city s urban strategy as it grows and density increases in the decades to come.

Green roof maintenance costs.

Cost of green roof vs conventional roof. Cost benefit evaluation of ecoroofs 2008 pdf 37 pp 2 1 mb about pdf this report attempts to quantify the private and public costs and benefits of green roofs or ecoroofs in portland oregon. The epa estimates that the cost of installing a green roof starts at around 10 per square foot for simpler extensive roofing and 25 per square foot for intensive roofs. Green roofs have been proven to help reduce heat islands.

If the green roof is installed in a warm and dry period we recommend watering the green roof regularly for the first 2 to 3 weeks. This document is intended to be a resource for the creation of a maintenance plan and for documenting the activities. Factors that affect maintenance costs include for example project size level of maintenance needed and proximity of the maintenance crew to the project site. When comparing the costs of green roofs and conventional roofs it is important to look at both the short term and long term costs.

Inspect the green roof at least 5 times a year for weeds and seeds carried by the wind and remove these. A green roof or rooftop garden is a vegetative layer grown on a rooftop. Because a green roof is a living system the maintenance plan may require a certain amount of modification over time as the roof matures and you come. Green roofs will require a level of maintenance comparable to at grade landscapes.

However they point out that green roofs can be considerably less expensive up to 50 cheaper when they. For an intensive roof annual maintenance costs range from 1 to 1 50 per square foot. This page provides a brief overview of the role of green roofs in mitigating the heat island effect including green roof types other environmental and social benefits and cost benefit considerations. This will enable the plants to sink their roots into the substrate.

Annual maintenance costs. Baltimore maryland based green roof technology a company that specializes in the specification and design of green roofs notes that increases in costs can also depend on growing media depth desired water storage and plant material.