Recently, there have been a number of articles suggesting that the risks associated with green roofs have been overblown. Over the past few days, I’ve spent some time looking for more concrete examples of green roof-related risks in practice. I started by looking for case law where a plaintiff alleged an attractive nuisance claim against the owner of a building arising out of a green roof or other rooftop landscaping. Westlaw did not return any results entirely on point, but I did find a number of interesting attractive nuisance decisions which I may present in a subsequent post here at GRELJ.
The much more practical research that I turned up was the following except from an article by Kelly Luckett, the self-proclaimed “Green Roof Guy” who writes a column for greenroofs.com. In a column from the very end of 2008, Mr. Luckett describes how uneducated project teams may unwittingly expose themselves to unanticipated risks stemming from the maintenance requirements of green roof installations. His remarks also reflect a number of key points we’ve made consistently both here at GRELJ and over at gbNYC with respect to the additional risk management strategies demanded by new green building technologies and third-party certification programs.
It is also interesting to note that, for the particular project that he describes below, LEED certification requirements resulted in the green roof’s irrigation system being disconnected after the initial green roof establishment period, which resulted in a roof that did not appear as anticipated by the owner. One last important thought- Mr. Luckett hints that this project was located in Toronto, which, as you’ll recall, recently passed a green roof mandate. I think this is a great example of how legislation is fueling the types of liabilities that we grapple with here at GRELJ, and why, as always, contract language will remain paramount for green building project teams.
I would like to turn the focus now to an issue that continues to plague the green roof industry: the maintenance-free green roof myth. Some in the media continue to espouse this nonexistent characteristic of green roofs resulting in many of our customers being painfully uneducated about realities of critical green roof maintenance!
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The other defining point of contemporary design is that it
Pretty strong language, I know, but the problem doesn’t seem to be getting better. Let me tell you a story about my company’s largest project. It’s a government owned project in the city that has become the nation’s green roof capitol; you know the place. I sat in on a meeting where the general contractor, the architect, and the roofing contractor removed all mention of maintenance guidelines and the Plant Health Alert System from my submittal package!
For those of you outside the construction industry, a submittal package is a gathering of documents and drawings the subcontractor submits to the architect and owner to demonstrate compliance with the specifications for products or portions of the construction project. When I questioned why they were removing critical pages of information from my submittals, I was told that they eliminated the irrigation system for this 96,000 square foot green roof based on a tour a green roof provider took the owner on during the preceding spring. I asked if they had told them about the drought that killed green roof plants all over the region the summer before, to which I only received blank stares. I practically had to threaten to hold my breath until I turned blue, or at least threaten to walk away from the project to get them to issue a change order to put the irrigation system back in, I should have known better, I should have hired the roofing company in bristol ct.
The green roof was planted in June and July, 2007, and required routine irrigation throughout the establishment period, a task that could not be accomplished over 96,000 square feet using a garden hose. After alleviating concerns over the irrigation system conflicting with LEED certification requirements by agreeing to disconnect the system after the establishment period, the change order was issued. However, I insisted that the irrigation system remain in place as insurance should drought conditions require its activation to keep the $250,000 worth of plants alive.
Now fast forward two years. The phone rings; it’s the roofing contractor. The ownership is requesting a walkthrough to discuss the condition of the green roof. I asked our horticulturist to accompany me to the autumn meeting on the rooftop. We were greeted by the general contractor, the architect, the roofing contractor, and a clearly unhappy owner’s representative. The condition of the green roof? Starving sedums due to absence of the fertilizer that was supposed to have been applied the previous spring, per the maintenance guidelines that the ownership never got to see.
Also, since the plants did not receive the food required to grow and cover the surface of the growth media, the weeds moved in. The good news – the weeds will die over the winter and an application of fertilizer next spring will allow the plants to thrive. The bad news – the project lost the opportunity for the plants to grow in one of the wettest growing seasons on record. As you can imagine, there was a round of discussion about who was supposed to pay for the maintenance provided by the building maintenance Brisbane, a discussion that may wind up being continued in a court room.
However, the owner’s representative asked why the irrigation system was still there. When the general contractor started to speak he was stopped by the owner’s representative who said the question was directed to me. Before I could answer, another question was posed, “Do you tell your customers that they need to provide irrigation for their green roof?” To which I replied, “Absolutely yes, every single one of them.”
The owner’s representative, clearly not expecting this answer, became even more agitated. That’s when I began to appreciate how serious this problem has gotten for the green roof industry. The owner’s representative placed in charge of one the city’s largest green roofs, in arguably the most green roof educated city in the nation, was utterly surprised by the fact that plants need food and water. The building code issue evoked an urgent call to arms that brought about action by many and opened lines of communication among perceived adversaries, while lack of proper green roof maintenance poses far more serious threat to the green roof concept yet the green roof industry remains largely quiet.
Admittedly, nobody uses discussing maintenance during the green roof sale as their go-to closing strategy, but it’s a lot healthier for a green roof business in the long run to address this issue upfront rather than standing in the middle of a problem on a green roof facing an unhappy and uneducated customer the following season. I’ll keep working on the code issues on behalf of the industry, but it’s time the industry start working on this much larger problem.