Here are some questions that building managers commonly ask us about NEDLAW Living Roofs™:

What types of vegetation are used? Do they flower throughout the growing season?

What are main benefits of a NEDLAW Living Roofs system for the building and its tenants?

What maintenance is required?

What about the warranty?

What are the conditions of warranty?

Are Living Roofs more susceptible to leaks or breakdown of the membrane?

What types of vegetation are used? Do they flower throughout the growing season?
There are two general types of vegetation used by NEDLAW Living Roofs. Succulents, known as sedum or stone crop, are a common type of plant used on Living Roofs in North America and Europe. Sedum is a ground cover commonly found in alpine regions characterized by harsh climates, which makes these plants suitable for rooftop growth. Our pre-grown sedum include eight to ten species that are decorated with both bright and earth-tone colors.

The second type of vegetation used is native meadow and prairie species. This mat consists of twenty different species of prairie grasses and wild flowers that are indigenous to Southern Ontario. Like sedum, this native vegetation is found growing naturally in tougher conditions where soil and moisture are both limited, which makes it ideal for rooftop conditions.

These plants flower throughout the summer and provide a mixture of bright colors.

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What are main benefits of a NEDLAW Living Roofs system for the building and its tenants?

Again and again, Living Roofs have proven to bring a wide range of economic, social and environmental benefits to building owners and tenants, including:
• Energy savings as heat transfer is reduced between the building and its outside environment
• Reduced life-cycle capital costs
• Reduced costs for roof maintenance
• Additional amenity space for tenants that did not previously exist
• Enhanced aesthetics of a building with added green space
• Improved psychological benefits, as people are happier when exposed to or have access to greenery
• Increased real-estate value, as buyers are willing to pay more for access to or a view of green space

Learn more

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What maintenance is required?
It’s a misconception that Living Roofs require no maintenance. All NEDLAW living-roof systems come with a full two-year maintenance package. See Service for more details.

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What about the warranty?
The NEDLAW Living Roofs standard warranty guarantees the workmanship of the installation for the life of the membrane, and that all components of the landscaping system will perform as per spec for the life of the membrane, as will all vegetation from the date the installation is completed.

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What are the conditions of warranty?
NEDLAW requires that all maintenance be conducted as per specification and that it be carried out by NEDLAW Living Roofs or a NEDLAW Living Roofs-certified installer. Any removal and replacement of the living roof, due to other work required, must also be completed by a certified installer. Sample warranty

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Are Living Roofs more susceptible to leaks or breakdown of the membrane?
No. In fact, a properly constructed living roof will extend the lifespan of your roof membrane, often by 30 to 50 years.

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