Mike Herlihy Tom Hutchinson

Transcription

1 CRCA 2009 Mike Herlihy Tom Hutchinson

2 A Contractors perspective the Market what to watch for the Opportunity be ready

3 Market is there Chicago AND suburbs. Market is both public AND private money Driven by : Compliance LEED Desire Owner voluntary

4 Many new developments Knowledge base Participate i t Specifier role Clear consensus?

5 System benefits Thermal cycling Tangible energy savings Theoretically improves long term performance of roofing system

6 Broadens Roofer invlovement Market growth

7 Green Assemblies could prolong roof service life due to protective nature However, Green could also accelerate deterioration due to weight, ih wear and tear, service demand d on roof, expansion and contraction. Match underlying roof assembly with long term roof Match underlying roof assembly with long term roof environment expectations (enough of the right stuff!)

8 Vegetative roofs will conceal the roofing membrane for the long term and therefore require and must receive much greater care during installation and inspection. Managing this care through h the overburden and green installation are critical to a successful installation.

9 Strom water runoff expectations Low flow St Saturation ti flow Rain over snow/frozen flow Lack of consensus among Civil Engineers

10 Roof/Green roof installation skill sets Roofers: Roof installation Inspection Overburden Plumbers Drainage piping Irrigation Landscapers Vegetation

11 The roof is the Roofers shop floor! Assets of a Qualified Roofer: Coordination and supervision of all above deck activities Expertise in evaluating roof material behavior Training in all facets of roofing Fall protection Ldd Ladder safety training ii Material handling and logistics to and on a roof Roof top fire safety Continuous inspection OSHA 10 hour training Proper insurance

12 Third party testing EFVM Learn it and understand it. It can be very useful Flood testing Often impractical on roofs Requires too much subdivision of roof Generates incredible weight Water supply not always available Wasteful?

13 Code approvals Still no wind uplift, wind erosion testing or acceptance criteria Still no fire testing DO NOT assume UL cl. A under green qualifies! Be certain roof under green meets code even if green disappears!

14 Warrantees Specifiers shifting liability by defining intense warrantees and maintenance language Up to two years after final acceptance! Engage owner early Plant list review roof, wind and drought tolerant Wind and water erosion

15 Irrigation in our out? Aesthetic expectations? Engage owner early so expectations are mutual Expectations at delivery Maturity Density Plant mix Geometry and layout Rows and lines Curves Logos CAD works great (in the office)

16 Schedule GC deliver buildings any month of the year Schedule Install green as late in project cycle as possible Need to get weight on building early? New vertical expansion challenges wall framing effect Schedule Dormant plant installation (Nov, Apr) Frozen and Dormant plant installation (Dec Mar) Site logistics and accessibility Building geometry

17 Structural considerations What capacities are provided? Moving hundreds or thousands of tons of material across roof Stiffness Induced stress on roof membrane Know what you are working on!

18 Promote single source delivery or at least responsible partnering. Forced partnering is a bad formula Partner with available resources and knowledge base Invest in education No substitution for hands on experience

19 As an Industry, we are better learning, knowing, shaping, investing and leading new trends This is not a Fad!

20 CRCA 2009 Mike Herlihy Tom Hutchinson

21 Reduces contribution to landfill, especially barely compactable insulation Provides input resource for products in other industries i May provide economic opportunity Chicago mandated d by ordinance Project/LEED specified recycling Will become a natural market when we do it Will become a natural market when we do it voluntarily and sustainably

22 Requires more sorting at the roof to distribute into various groups Not currently an economic benefit in most situations owner or contractor May require additional on site hauling or handling May require additional offsite accumulation and re handling to establish collectable quantities Containment may be required due to extended durations Added documentation processes Many items not eligible due to contamination or mixture

23 Learn ordinances Explore market channels of availability It is here to stay!