-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
1/65
What You Need t o do More of , Bet t er, andWhat You Need t o do More of , Bet t er, and
Dif f erent l y When It Comes t o Green Roof s:Dif f erent l y When It Comes t o Green Roof s:Lessons Learned f rom 10 Year s of Green RoofLessons Learned f rom 10 Year s of Green RoofResearch and Const ruct ion i n Nor t h Am er icaResearch and Const ruct ion i n Nor t h Am er ica
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
2/65
Par t 2Par t 2 Gr een Roof Market s, Const ruct ionGreen Roof Market s, Const ruct ionand Veget at ion Techni quesand Veget at ion Techni ques
RogerRoger GrotheGrotheJakeJake Grot heGrotheAloha LandscapingAloha Landscaping
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
3/65
Green Roof Markets
New Const ruct ion - Publ ic
New Const ruct ion Pri vat e
Dem onst rat ion Proj ect
Research Proj ect
Roof Repl acem ent
Value-Add Proj ect
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
4/65
Roof Replacem ent
Upgrade t o Green Roof If St ruct ur all y Capable
Take Advant age of Tax Credi t s and Wat er shed Grant s
Re-Brand as a Green Bui ld ing
Less Exp ensive
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
5/65
Value-Add Proj ect
Creat e New Value Wit h Green Space Am enit y
Take Advant age of Tax Credi t s and Wat er shed Grant s
Posit ion Proper t y f or Fut ure Green Infr ast ruct ureImprovements
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
6/65
Types of Green Roofs
Type of Roof Extensive ( 15 cm)
Flat X X
Sloped X
Plaza/ Ent er t ainment X X
Canopy X
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
7/65
Ext ensive Green Roof s - Flat
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
8/65
Ext ensive Green Roof s - Flat
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
9/65
Ext ensive Green Roof s - Flat
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
10/65
Ext ensive Green Roof s - Sloped
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
11/65
Ext ensive Green Roof s - Sloped
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
12/65
Int ensive Green Roof s
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
13/65
Int ensive Green Roof s
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
14/65
Int ensive Green Roof s
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
15/65
Int ensive Green Roof s
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
16/65
Int ensive Green Roof s
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
17/65
Int ensive Green Roof s - Plaza
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
18/65
Int ensive Green Roof s - Plaza
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
19/65
Canopy - Ext ensive
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
20/65
Canopy - Int ensive
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
21/65
Canopy - Int ensive
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
22/65
Canopy - Int ensive
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
23/65
Green Roof Const ruct ion Trends
Manufacturer Consolidation
Shif t t o Pre -Grow n Trays and Veget at ed Mat s
Int erest in Biodi versit y Dri ven Design
Cost Reduc t ion and Ret urn on Invest m ent (ROI)
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
24/65
Manufacturer Consol idation
Roof ing Manuf act ur ers Focusing on Tot al Solu t ions
Roof ing Cont ract ors Becoming Green Cont ract ors
Dif f icul t t o Request Alt ernat e Roof ing/ Veget at ionSystems
Harder t o Appl y Best Pract ices w it h Warrant y-Dri venGreen Roof Syst em s
If you only have a hamm er, you t end t o seeevery pr oblem as a nai l
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
25/65
Shi f t t o Pre-Grow n Trays andVeget at ed Mat s
Fear of Leaks Dri ves Inst ant Green Roof Grow t h
Low Quali t y Wat erp roof ing Mem branes EncourageAddi t ional Prot ect ion Provided by Plast ic Trays
Borde rl ine Envir onm ent s Requir e Alt ernat ive Veget at ionApproaches
Lack of Underst anding of Green Roof Plant Perf orm ance
Leads t o Nursery Grow n Trays and Veget at ed Mat s
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
26/65
Int erest in Biodi versit y Dr ivenDesign
More Ser ious Discussions About Nat ive Plant s
Reali zat ion That a Green Roof Does Not Repl ace GroundLevel Habit at
New Underst anding of t he Role Green Roof s Play inProm ot ing Rare and Even Endangered Plant and InsectSpecies
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
27/65
Cost Reduct ion and Ret urn onInvestment (ROI)
Novelt y i s Replaced w it h Fiscal Responsibi l i t y
Green Infr ast ruct ure Impr ovement s Wil l Be JudgedAgainst t he Same Financ ial St andards
Green Branding Em phasis Doesn t Mean BiggerBudget s f or Green Infr ast ruct ure Proj ect s
Going Green is Not an Em ot ional Exercise
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
28/65
Cost Reduct ion and Ret urn onInvestment (ROI)
Mal l of Am er icaMal l of Am er ica
Case StudyCase Study
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
29/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
30/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
31/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
32/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
33/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
34/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
35/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
36/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
37/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
38/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
39/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
40/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
41/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
42/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
43/65
How Low Can You Go?How Low Can You Go?
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
44/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
45/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
46/65
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
47/65
Mall of Am er ica Case St udy EndResult
But t erf ly Bay Open f or 1. 5 years
Over 1 Mil l ion Visit ors
Massive Med ia Exposur e
$500K Corp orat e Sponsor Not Accept ed
Solar Proj ect Cancell ed Too Expensive
But t erf ly Bay and Eco Park Replaced w it h New Ride
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
48/65
Cli ent Expect at ions
Client FocusDeveloper Cost
Archi t ect Unique Feat ures
Ow ner / Occupant Looks/ Funct ional i t y
Government / Publ icIn i t ia t ive
Construction Precision
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
49/65
Critical Success Factors -Developer
Lowest Cost / Highest Qual i t y
Manage Schedule and Quali t y
Const ant Comm unicat ion and Expect at ion Clar i f icat ion
Minimize Risk
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
50/65
Critical Success Factors -Archi tect
Underst and Specif icat ions and Qualit y Inspect ions
Qualit y of Work and Visual Percept ion
Clari f y Product / Met hods Quest ions and Probl em s
Request Substitutions Early in Process
Complet e Punch List Quickl y
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
51/65
Critical Success Factors Ow ner/ Occupant
Creat e Clear Cont ract Document s and Expect at ions
Manage Schedu le and Budget
No Suprises
Fin ish On-Tim e or Earl y
Provide Maintenance During Establishment Period
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
52/65
Critical Success Factors Governm ent In i t iat ive
Clari f y Proj ect Managem ent Hierarchy
Deli ver Subm it t als On-Time
Managem ent Schedule and Qualit y
Focus on Proj ect Com plet ion and Best Pract ices
Meet All Safet y Guide li nes
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
53/65
Const ruct ion and Veget at ionTechniques
Know Your Wat erproof ing Prod uct s and Det ail s
Know Your Paver s and Ballast Mat er ial s
Know Your Gr een Roof Medi a
Know Your Green Roof Veget at ion Opt ions
Know Your Ir r i gat ion Opt ions
Know Your Mat er ial Handli ng Opt ions
Know Your Costs
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
54/65
Know Your Wat erpr oof ingProduct s and Det ai l s
Sheet Memb rane Peel and St ick (60 mil )
Cold Appl ied Syst em (60 m il )
TPO Therm oplast ic Polyolef in (60 m il )
Hot Appl ied Bui l t -Up (210m il )
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
55/65
Know Your Pavers and Bal l astMater ia ls
Prot ect s Wat erp roof ing Syst em at t he Buil di ng Edge
Provid e Fir e Break Prot ect ion Veget at ion Free Zones
Can Be Pavers or Gravel Ballast
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
56/65
Know Your Green Roof Media
Structure Determines Media Depth
Typ ical l y 95% Inor ganic
Miner al Component is Typical ly Calci ned Clay,
Expanded Shale , Pum ice , Volcanic Crushed St one,Crushed Br ick , or Graded Sand
Heavier t he Mix More Drainage Reli ef Requir ed
K Y G R f V i
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
57/65
Know Your Green Roof Veget at ionOpt ions
Cli ent Expect at ions Dri ve Plant ing Syst em
Seeding is Dif f icul t Result s in Brow n Roofs wi t h Weeds
Cut t ings is Cost Ef f ect ive Sever al Years t o Est abl ish
Plugs All ow f or Design Flexibi l it y and Est abl ish Quickl y
Trays Creat e an Inst ant Green Roof Expensive
Veget at ed Mat s Creat e an Inst ant Green Roof - Expensive
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
58/65
Know Your Ir r igat ion Opt ions
No Ir r igat ion Hand Wat er
Sub-Surf ace Dri p Most Ef f ici ent
Sur f ace Dr ip
Trad it ional Pop-Up Spr ays
Water Harvesting Systems Can Supply Water
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
59/65
Know Your Mat er ial Handl ingOpt ions
Telebel t Conveyor Syst em 15 Met ers
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
60/65
Know Your Mat er ial Handl ing
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
61/65
Know Your Mat er ial Handl ingOpt ions
Blow er 15 Met ers
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
62/65
Know Your Cost s
ScopeTradit ional green roof syst em installed on 1,000 m2
roof at an elevation of 17 meters or less.
Unit Cost
Drainage Mat and Fi l t er Fabr ic (DBR50) m 2 10. 22
Soi l / Media (15cm Pum ice-Based Med ia) m 2 33. 79
Ir r igat ion (Sub-Sur f ace Dr ip) m 2 12. 48
Plant s (22 Plugs m 2) m 2 25. 07
Wind Erosion Mat (Jut e w i t h St akes) m 2 12. 37One-Year Maint enance (6 Visi t s) m 2 3. 29
Tot al 97. 22
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
63/65
It Ai n t Green If It Ai n t Green
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
64/65
Green Roof Plant s
-
7/30/2019 GreenroofsHelsinki Presentation 2.0 - Construction Techniques - October 10, 2011
65/65
QuestionsQuestions