Raise the Green Roof Gus Bracamontes Cheryl Gregory Teddy Ho Anuradha Kumar Joe Ziomek

Raise the Green RoofGus BracamontesCheryl GregoryTeddy HoAnuradha KumarJoe Ziomek

Introduction

Implementation

FeasibilityCosts & Benefits

Conclusions

Agenda2

Project Proposal

Questions

Introduction

3

Objectives

4

• Make a positive impact to the environment

• Serve the large percentage of students interested in sustainability

• Increase Anderson’s reputation as a sustainable school

Our Approach

5

• Make a measurable impact

Positive Impact on the

Environment

• Implement a concept that will excite and involve the Anderson Community

Serve Student Interest in

Sustainability • Utilize the Anderson Campus to make a visible impact

Make Anderson a Green Business

School

Solution

6

• Green Roofing Anderson– Covering the Anderson Roofs with

vegetation and soil planted over a waterproofing membrane

Why this is the best Option for the Roof

7

Alternative Benefits HurdlesGreen Roof -Reduced urban heat island

effect-Reduced energy usage & cost-Reduced renovation cost

-Large upfront costs

Reflective Roof -Reduced energy usage & cost-Cost effective

- Lower energy savings- Does not have additional environmental impacts

Solar Paneled Roof

-Use of alternative energy-Reduced fuel cost-Reduced dependence on foreign oil

-Large upfront costs-Anderson has deemed solar panels infeasible and will not consider this as an option for implementation within a year

Future Considerations: In the event that Anderson decides to invest in solar panels, green roofs increase the effectiveness of solar panels

Project Proposal

8

Green Roof Type• Extensive

– 1-6 inches of soil– Ground cover or shrubs– 15-50 pounds per square foot– Can be either Modular or Integrated (Built-In)

• Intensive– 6-24 or even more inches of soil– Extensive assortment of plants (trees, shrubs, public spaces)– 80-150 pounds per square foot– Must be integrated

9

Green Roof Type AnalysisCriteria Extensi

veIntensive

Ease of Installation

Weight Considerations

Amenity Space

Plant Variety

Maintenance

Price

10

Result: Extensive Modular Green Roof Implementation

Location ConsiderationsRequirements For Prototype• West facing building

• higher energy usage • Free space

• least amount of structural disturbance in the roof (sky lights, pipes etc.)

11

Added Benefits of Building F• High Visibility

• Visible from top floors of other buildings • Above the Dean’s office

Vegetation

12

• Requirements– Ability to grow under the conditions of

the green roof– Climate– Soil Level

– Tolerant of drought conditions• Recommendations

– Succulents (ex. Sedums)– Work with green roof provider

• Irrigation System– Efficient Drop Irrigation

Benefit & Costs

13

Air Quality Improvement

14

Particulate matter reduction due to a 1000 ft2 green roof = 40 lbs

Particulate matter reduction at Mullen Commons = 199 lbsParticulate matter emitted by one car in a year = 2.67 lbs

That is a reduction of particulate matter from 75 cars or the cars of ONE Anderson MBA Section a year!

Energy Savings

15

Annual Energy Usage (kwh)

Annual Dollar Amount Spent

Currently 644,760 $74,250.65

With Green Roof 596,403 $68,681.85

Annual Savings 48,357 $5,568.80

The financial savings is based on the fact that the energy used per year in Mullin Commons will decrease by 7.5%

Additional Benefits

16

- Green House Gas Absorption- Urban Heat Island Effect- Storm Water Run off- Credits towards Leed Certification

Branding & Social Impact• Visual representation of Anderson’s commitment to Sustainability

– Currently #93 on Aspen Institutes “Beyond Grey Pinstripes” Ranking

– Increase Anderson’s appeal to top prospective students , recruiters and donors • All with a growing concern for the environment

• Serve as an example for the external community– First retrofit a green roof at UCLA– One of the first to implement a green roof in LA

17

Cost Considerations

18

- Green Roof Installation- Labor- Membrane- Vegetation Modules

- Irrigation System Installation- On-going maintenance

- Labor- Water

118,475

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

1

118,475

133,157

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

1

76,974

118,475

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

1

Current StrategyRe-Roof: 5 yrs, 25 yrsTotal PV Costs: $118,475

Green Roof StrategyRoof today; Re-roof in 40 yearsTotal PV Costs: 133,157 Net Energy Savings: 56,184 Net PV Costs (after savings): 76,974

Net Difference: 41,501 CHEAPER

Costs Vs. Benefits

*Assumes Conventional Roof = $13 psf; Green Roof = $19-21 psf; Real discount Rate of 3%

Feasibility

20

Structural FeasibilityStructural Feasibility Question?

Answer

Can the roof support the weight?

Can we avoid an earthquake inspection?

Is the roof properly waterproofed as is?

Sources: Prof. Thomas Sabol of UCLA Civil & Environmental Engineering; Tom Hawkins of LiveRoof; Biltmore Roofing

56 psf Capacity

< 73.3% Coverage

Concrete & Membrane

Fire RegulationsWill The Roof Satisfy Fire Regulations?

Answer

Mitigate Risk of flammable vegetation

Maintain appropriate standards for Roof Access for fire fighters

Enforce appropriate occupancy level

-Appropriate Plants- Irrigation System

- Maintain current access

- Extensive roof not open to public

Implementation

23

Implementation Steps and Timeline

Funding

25

Funding Source Amount UCLA TGI Fund $8000Anderson Student Fee $21,000 (1,400 * $15 / year)

Faculty and Staff Contributions $5,000

Clean Water State Revolving Fund

$70,244

Total $104,244

Other Funding Sources:- Naming rights- Donor- Dean’s Initiative- Public funding

Construction Phase

Education

27

• Demonstration Project for the LA Area• Educational Research Partnerships• Anderson Case Studies

• Marketing, Finance & Strategy• UCLA Research

• Institute on the Environment etc.• Local Curriculum

• Elementary through High School

Conclusion

28

The Green Roof is

29

• Feasible• Implementable• Scalable• Financially Beneficial

The Green Roof Fulfilled Our Objectives

30

• The Green Roof will improve air quality and reduce energy usage

Positive Impact on the

Environment

• The Green Roof will serve educational purposes

Serve Student Interest in

Sustainability • The Green Roof will serve as an example for Academics, UCLA and LA

Make Anderson a Green Business

School

Questions?

31

Appendix

32

Costs

33

Cost Comparison

Green Roof Conventional Roof Incremental CostsINSTALL COSTSInitial Cost 19 per sq. ft 13 per sq. ft 6 per sq. ftIrrigation 2 per sq. ft 0 per sq. ftRoof Life 40 yrs 20 yrs 20 yrs

Roof Size (Sq ft) 6,800 6,800 % Covered 73.00% 100.00%Roof Covered 4,964 6,800

Total Install Costs 104,244 88,400 15,844

ONGOING COSTSAnnual Maintenance (Sq Ft) 0.52 per sq. ft 0 per sq. ft 0.52 per sq. ftTotal Annual Maintenance 2,581 0 2,581

Implementation – Fall Quarter

34*Note: Certain tasks may be completed in advance during the Spring 2009 term.

Projects 9/27 10/4 10/11 10/18 10/25 11/1 11/8 11/15 11/22 11/29 12/6 12/13 12/20 12/27Education

Staff Education x x x

Student Education x x x

Anderson Community x x x

UCLA Community x x x

External Community

Funding

Undergraduate Fund* x x x x

Anderson Fund x x x x

Staff Fund x x x x

State Funding x x x

Construction

Roof design x x x x x x x

Roof Approval x x x

Roof Installation x x

Roll Out

Monitor

Power Usage & Reporting

Implementation – Winter Quarter

35*Note: Certain tasks may be completed in advance during the Spring 2009 term.

Projects 1/3 1/10 1/17 1/24 1/31 2/7 2/14 2/21 2/28 3/7 3/14 3/21

Education

Staff Education

Student Education

Anderson Community

UCLA Community

External Community x

FundingUndergraduate Fund*

Anderson Fund

Staff Fund

State Funding

Construction

Roof design

Roof Approval

Roof Installation x x x x x x x x x

Roll Out x x

Monitor

Power Usage & Reporting x

Total of 56 psf capacity

Goal: stay below 10% additional weight to avoid triggering required seismological evaluation.

56 psf * 10% = 5.6 psf.Removal of 6 psf of gravel total of 11.6 psf across entire roof is maximum

Green roof is 16 psf. Thus we can cover 11.6 / 16 = 73% of the roof without triggering the evaluation.

Source: Prof. Thomas Sabol of UCLA Civil & Environmental Engineering

Seismological Requirements

Standard load capacity of 5.5-inch concrete is 39 psfAssume additional load capacity of 17 psfTotal of 56 psf capacity

Light modular green roofs are 16 psf when soaking wet.

Source: Prof. Thomas Sabol of UCLA Civil & Environmental Engineering

Structural Feasibility