Warranty
Green roof warranties can include multiple aspects of the project. They range from “wraparound” or single-source full-system warranties to simple materials only warranties on various components. One important issue to consider is how waterproofing system warranties interface with the green roof system warranties.
To select the right coverage that aligns with an owner’s risk tolerance and budget, it’s essential to understand the available options. These include:
- By individual components or by specific materials: This allows for tailored coverage on a part-by-part basis.
- Full-system, single-source: This offers comprehensive coverage from one provider for the entire system.
- Wraparound with or without overburden material: This type of coverage can encompass broader elements, potentially including or excluding the overburden material.
Remember, a vegetative green roof is a living system that requires regular care and maintenance to sustain long-term health and performance. If you don’t take care of your roof after it has been installed, it will not perform as expected. Regular maintenance is often a criteria for maintaining a valid warranty as well.
Component or Material Warranties
Vegetation warranties might also guarantee healthy plants upon arrival, a percent coverage, and/or plant health from 90 days to 2 years. Keep in mind that plant warranties in particular will require maintenance to be valid. Soil media is usually not warranted.
Full System or Single Source
Wraparound
Overburden Removal/Replacement
This "one-stop shop" approach simplifies the warranty process and offers peace of mind by ensuring a single point of contact for any potential issues.
Maintenance Requirements
Remember, a green roof is a living system that requires regular care and maintenance to sustain long-term health and performance. Neglecting maintenance can result in the roof not performing as expected and may void the warranty.
Choosing the right warranty coverage for your green roof is a crucial step in the design process. To ensure the best protection that aligns with your risk tolerance and budget, it’s important to know the available options and their implications.
