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Green Roofs


Green Roofs are serious business, their cost makes them so. They need to be installed correctly, and if a Green Roof does not drain properly it will lead to premature failure of the waterproofing membrane. The problem is no one knows if it is not draining properly until it is too late.

If you thought the Green Roof was expensive when it was put on wait until it is removed and reinstalled. Enclosing a drain in perforated stainless steel will prevent the drain from operating properly, and very quickly due to the S/S plugging with Green Roof debris. The Drainage mat must flow directly to the drain and the drain enclosure must be a secondary drainage path to maintain proper drainage of the Green Roof. Don’t be responsible for specifying a Green Roof enclosure that will cause premature failure of the waterproofing membrane.

Please see bottom of page for submittal sheet .

Green Roof Drain
The "Froet Black Box" for Advanced Green Roof, Drain Protection and Access


green roof box in a green roof that is about 18" deep
The above picture shows a green roof box in a green roof that is about 18" deep


This ia a picture of the same project with different media
This ia a picture of the same project with different media


This picture shows a closed green roof box in a gravel portion of the green roof
This picture shows a closed green roof box in a gravel portion of the green roof


Stainless steel green roof box assembled with S/S hard rivets throughout and Aluminum heel proof grading top
Stainless steel green roof box assembled with S/S hard rivets throughout and Aluminum heel proof grading top
This box was custom done for a North Carolina University to be used in the walkways of green roofs



Stainless steel green roof box with stainless steel top and assembled with S/S hard rivets throughout
This box was custom done for the same University and used in the vegetation area of the green roof


intensive roof where the IRMA guard is surrounded by gravel
The above drawing illustrates an intensive roof where the IRMA guard is surrounded by gravel. The IRMA guard is is open at the top so when the perforated stainless steel becomes plugged the roof will be able to drain over the guard

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extensive green roof where the majority of the drainage water flows through the drainage mat
This drawing illustrates an extensive green roof where the majority of the drainage water flows through the drainage mat. So if the green roof box were to ever become plugged the roof will still be able to drain. The probably of green roof box becoming blocked is very low due to the design. In this design the box serves as protection for the drain and does not serve as the primary path for the drainage water.

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Froet S/S Green Roof Box

Froet Adjustable GRB

Green Roof Details - Click on an "X" to View Desired Format

Revit drawings at bottom of page

Section Drawings    
 DWG
 
 PDF
   
S-SGRB      
   
Froet Adjustable GRB Drawing      
   




InformationDear Architects, Engineers, Building Owners, Wholesalers, Contractors and Manufacturer Representatives,

It has come to our attention that there is a rumor going around in the industry that our patent is no longer in force. That is totally false .Our patent is and will continue to be in force until November 6th, 2021. The installation of a product that infringes on our patent could present a liability issue to any entity involved in the sale or use of said product. We have made a PDF copy of our patent available for any one 's use to determine if a given product may or may not infringe on our patent.
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