Tuesday, November 3, 2009

Meeting Minutes 10.29.09

Call participants: Charlie Miller, Nate Johnson, Lisa benjamin, Karla Dakin, Martin Perez, John
Call time: 9 am

Summary of Discussion:

Membrane:
EPRO liner: we discussed the manufacturer, they have a no limit 10 year warranty. This was discussed to be minimum in comparison to other LAR approved companies such as hydrotech. The LA approval was a limitation in selecting membrane/water proofing contractors. we discussed that the eco shield is not a root barrier it is a root repellent and that it is not embedded in the membrane. If there is a separate root barrier it should be thermoplastic as recommended by Charlie Miller. Martin is not necessarily Opposed to changing the roof membrane installer or manufacturer, yet will be difficult to change due to time and budget. So where do we go from here? Roofscapes will be willing to work with pro, Hydrotech is not. Martin stated that the roof membrane and drainage spec provided by pro was between $ 8-10 sq/ ft. Other membranes were anticipated to be 25-20% higher.

Plant Material:
we discussed possibilities of plant material types: grasses, sedums, carexs, succulents etc.

Irrigation:
We also discussed irrigation: it is not counted as a LEED pt so therefore had no LEEd limitations. At present we have a 2" main line serving a the supply line and will plumb into each section of roof accordingly. This 2" main should be sufficient and each bed area will be sleeved.

Drainage:
all drains must be protected with a custom or off the shelf chamber with a lid for regular inspections. you will need subsurface as well as overflow for each drain. As for location they should be easy to get to.

Slope: we discussed slope and stabilization issues. To ensure good stability is to keep substrate material as thin as possible. There are different methods of planting and stabilizing planting with netting, matts, etc. the steep slopes are 1:1 or 8:12 and will require a cellular confinement web, and other soil stabilization methods.

Schedule:
we are now a month ahead of schedule the roof is scheduled to be poured 16-20th of novemeber, 2 days after the pour is complete they will begin on planter walls and they will be completed in 2 weeks putting the waterproof membrane application the first part of december. What martina and john need are locations and number of penetrations for power and irrigation.


EPRO owner/rep: Dave Polk 316.262.2513 dpolk@eproserve.com

Action Items:
1. Roofscapes will pull together a rough proposal by monday and discuss with EVo and martin on Tuesday
2. Evo will continue research with Roofscapes and Hydrotech, Conservation Technology on options for design and installation

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