Studies abound that green roofs reduce the effects of urban heat islands. They're also far more aesthetically pleasing than a basic, blacktop roof. Green roofs provide shade, comfort and a place to enjoy the greenery in an otherwise concrete jungle.
The answer to "Why a green roof?" seems rather straightforward, then. And, if you’re a waterproofing contractor, you’re likely to see more projects like these on the horizon. There is, however, some nuance to green roof projects. For instance, who is responsible for what? From a waterproofing perspective, you may want to consider the following…
Draw the line between waterproofing and the green layers
First of all, your installation ends before any green roof construction begins. The waterproofing layer is, in fact, usually the last layer to be applied before the green roof contractor gets to work.
Ensure that the type of waterproofing system you choose is suited for a green roof
A green roof system usually includes a root barrier to protect the waterproofing from aggressive plant roots that can penetrate the membrane.
Lay down a strong membrane
If you lay down a strong waterproofing membrane from the get-go, leaks may not become an issue, even under the most aggressive green roof roots. SILCOR® 900MP and SILCOR® 900HA liquid waterproofing membranes meet ASTM standard D624—Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers. SILCOR® liquid waterproofing membranes can also endure long exposure times. This is crucial protection in case the green roof contractor experiences delays in installing the fabric, drainage or growth medium layers.
September 22, 2017
Playing with fire
Waterproofing on roofs and decks has traditionally been done using open flames or the application of heat (for example, using hot rubberized asphalt systems and torch on membranes). However, the risk ...
October 23, 2018
How green roofs cool urban heat islands
You may have heard of the term "urban heat island." It's really just a fancy way of saying that, in certain areas of a city, heat energy concentrates to raise the temperature. Cities are, for the mos...
May 17, 2018
Five ways to streamline waterproofing application
Waterproofing is a critical step in building construction, but what can you do to make the process go quickly and smoothly? Here are some quick tips for streamlining waterproofing application: Consid...
February 12, 2018
Best practices for waterproofing buried roofs
What are buried roofs? Typically part of an under-garden structure or landscaped area, a buried roof is either part of a basement that extends beyond the line of the main elevations, or an elevated d...
November 15, 2017
Make the most of outdoor space
Developers are increasingly finding novel ways to maximize outdoor space, creating inviting terraces and roof decks that offer sweeping views as well as more living area for a variety of uses. This ma...