Contractors
A Contractors’ Dependable
Resource
“Always quick…competitive!”
— Rocket Miller, Total Grounds Effects, Surrey, BC
Seeing More Green Roofs?
Let’s Win that Job!
Excellent Customer Service & Support
We Provide Contractors:
Value-Engineered Options to Meet Design Goals
Specific Documentation for the Permit Process
Completed & Signed Green Roof Declaration Forms
Project-specific P.Eng Wind Uplift letters (CSA A123.24)
Plant Survivability Reports
Guidance with the City of Toronto Construction Standard
Consultations with your team Engineers, Architects & Landscape Architects
FAQ
Keen to install green roofs or to subcontract out? Read how NLSM helps you get the job!
NLSM supplies premium quality green roof system components, and excellent customer service and support to roofers or subcontractors. NLSM customizes the most cost-effective solution to meet the green roof project goals. NLSM also offers live installer workshops with step-by-step instructions specific to the project. New clients will get an NLSM representative visit your job site on your first installation to answer any questions. If you prefer to subcontract out, NLSM is happy to connect you with certified installers.
How does NLSM make a mandated green roof work harder & smarter?
NLSM helps you select the best and most economical green roof system to meet the Toronto Green Roof By-Law, Wet Weather Flow Management Guidelines (WWFMG) and the Toronto Green Standard (TGS). Our range of systems include lightweight and soilless, to robust with growing media, to more innovative systems that offer enhanced stormwater retention & detention management. For large inaccessible roofs areas, or for buildings with limited structural capacity, we have LiteN’Less, an economical minimalist, low maintenance, soilless system. To help meet TGS biodiverse requirements, we suggest the BioBerm™ to strategically enhance any extensive system – a happy medium that balances cost, loading and aesthetics! For enhanced stormwater management we offer StormCap™+Detention and SpongeBase™Systems.
How to choose the most cost-effective system?
Our experienced team reviews the specific project’s needs, design intents and any related by-laws and standards to help select the best option while considering cost, loading and aesthetics.
How to navigate municipal requirements and the Green Roof Declaration?
Leave the paperwork to us! Our experienced team will fill out and sign the Green Roof Declaration form. Have more questions about the City requirements? Please reach out and we will happily provide the answers.
Are NLSM vegetated systems wind tested? How do we get a P. Eng stamped Letter?
Yes! NLSM’s vegetated systems are tested to CSA A123.24 and were subjected to 200 km/hour wind forces. We provide a project specific wind uplift letter stamped by a P.Eng upon request. Fun Fact: NLSM’s Dr. Karen Liu and Sasha Aguilera participated in developing the Canadian Standard Test Method for Wind Resistance of Modular Vegetated Roof Assembly – the first such test in the world. Tests were conducted at the National Research Council laboratory in Ottawa, Ontario and at the UL laboratory in Montreal, Quebec. Additionally, NLSM participated in the National Research Council Canada (NRC) field monitoring testing done at Humber College near the Toronto Pearson Airport.
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