This document summarizes information on green roof systems for The Summit United Methodist Church, including benefits, maintenance requirements, and funding options. It discusses modular tray green roof systems, a maintenance plan, potential rainwater collection, green walls, costs, and alternatives. The purpose is to provide information to implement a green roof at the church to gain environmental and community benefits.

2. Our purpose in this research is to provide
information on various green roof systems,
the maintenance involved, and how to
secure funding for the implementation of a
Green Roof at The Summit United
Methodist Church.

3. 1. General Benefits of a Green Roof
2. Benefits of comparable modular tray systems
a) Live Roof
b) Green Roof Block
c) Carlisle/Green Grid Systems
3. Maintenance Plan
4. Rainwater collection feature
5. Green Wall option
6. Cost
7. Alternatives to a green roof
8. Funding
9. References

4. • Decreases heating and cooling
load
– Increases thermal resistance
value of roof and cooling roof by
evaporation
• More than doubles life of
roofing membrane
– Protects membrane from harmful
UV rays, punctures, and extreme
temperature fluctuations

5. • Reduces the amount • Michigan State
of storm water runoff University Study
from a building’s roof
• Materials absorb rain
water and releases it
over time
• Plants filter pollutants
creating cleaner
runoff
Green roof water amount
retained: 60-100%

6. • Support local wildlife
– Increases amount of
local plants
– Cuts down on lost
vegetative space
– Encourages
biodiversity

7. • Implement an outreach program within the
church
– Community volunteers giving back
– Create a sense of self-worth and pride
– Helps a nonresidential building blend in with
the neighborhood
– Improves aesthetics of neighborhood

8. • Specs
‐ 2’ x 2’ x 4” pre‐vegetated
aluminum trays
‐ Accommodates growth
media depths ranging from
4” to 11”
‐ 65 yr life expectancy
‐ 12‐18 lb/ft² Greenroofblock.com

9. • Benefits
‐ Installed directly onto
roof
‐ Mobile for roof
maintenance other
purposes
Children’s
Museum ‐ $25/ft² including
Pittsburgh
installation and shipping

10. • 1’ x 2’ pre-vegetated plastic
trays
• 27-29 lb/ft² fully saturated
• $18-$22/ft² including
installation
– Excludes water membrane
• Less than $1/ft²
• Non Compartmentalized **Future Projects: Franklin
County Courthouse
– edges are never visible Spring 2010
liveroofs.com

11. • Maintenance
– Annual soil testing and
Fertilization
– Watering when less than 1”
of rainfalls during a 2 to 4
week period when it is 75
degrees or hotter
– Biweekly weeding during
Spring and Fall growing
seasons
– $0.15 to $0.30 annually
liveroofs.com

12. • Carlisle Protection Fabric ( CCW-200V)
– Installed directly on exiting membrane roof
• Planted Modular Trays
– 24” x 48”
– 24” x 24”
• New roofing membrane application would be
needed before this system or other green roofs
systems were installed to keep the existing roof
warranty

13. • Maintenance Plan
– Despite such claims,
there is no such thing as
a maintenance-free
green roof.
– Do not let your
maintenance plan go
ignored

14. • Maintenance Contracts
– 3-5 years
– Typically established with
the green roof installer, who
– Installers most likely cover
the warranty of your green
roof

15. • How Frequent?
– During establishment
period (18-24 months)
• 4-6 routine maintenance
visits are required to insure
survival of the vegetated
cover
– Establishment period will
be less with pre-vegetated
modular trays (Live Roof).

16. • Watering
– The plants selected for a project should be
drought tolerant.
– Periodic hand watering during the
establishment period and afterwards but only
in sustained drought
• Drainage
– Visually and manually check drains for clogs
every 4-6 months

17. • Weeding
– Every 4-6 months after establishment period
recommended
– Hand pruning should be used
• No digging or using pointed tools
• Fertilizer
– Soil tests should be conducted each spring in
order to assess plant nutritional requirements.
– The nutrient applications should be made in
early spring and fall.

18. Rainwater Data Tank Specs
• 1000 ft² = 623 gallons • $315 (on sale for $206)
– 1 inch rainfall • 305 gallons
• 1700 ft² = 1059 gallons • Diameter: 46 inches
(Approximate) • Height: 49 inches
• Need: 4 tanks to hold • Weight: 64 LBs
optimum water storage

20. • Each tank empty = 64 LBs
• 305 Gallons x 8.35LBs/gallon = 2546 LBs
• 2546 LBs + 64 LBs = 2610 LBs per tank
• Weights
– 1 tank: 2610 LBs
– 2 tanks: 5220 LBs
– 3 tanks: 7830 LBs
– 4 tanks: 10,440 LBs

21. • Modular tray system
attaches to wall
• Growing medium
included
• Can use reclaimed
water

22. • Modular trellis
system
• Can be wall hung or
freestanding
• Plants typically
grow from base of
wall and vine up the
trellis

23. Stage 1: Outlined in yellow, is
approx. 1160 ft²
• Improve HVAC operation by
reducing heat island effect on
roof.
• Approximately 10% of section
is occupied by equipment.
Stage 2: Outlined in red, is
approx. 1600 ft²
• Provide additional benefits
described previously.

24. • Modular
– Live Roof- $20/ ft²
– Green Roof Blocks - $25/ ft²
– Green Grid System (Carlisle) $12.50 to $ 13.00 per ft²
• Conventional
– Tremco - $15-25/ ft²
– Greenscapes - $8 - $10/ ft²
• Green Wall - $9-$12/ ft²
• G-Sky wall system $100 or more/ ft²
• Leak detection - Electronic Vectormapping $0.75 / ft²
• (4) x 305 gallon water cisterns - approx. $824 ($206 each)
• Reflective roof ranges from $0.75 to $3.00/ ft²

25. • Reflective coating
applied to existing
roof
• Helps keep roof cool
by reflecting sun’s
rays back into space
• Can reflect 80% of
sun’s rays and reduce
roof temperature by
up to 80 degrees

26. • Cost and Maintenance
– $0.75 to $3.00/ ft² for materials and
installation
– Extends life of existing roof up to 15
years
– Requires little maintenance
(occasional cleaning or
reapplication)

27. (links included in report)
1. United Methodist Women – A Brighter Future for
Children and Youth
2. United Methodist Global Ministries – Outreach to
Meet Human Needs
3. Tomorrow's Leaders II Scholarship Program and
Recruitment
4. Ethnic Local Church Concerns (ELLC)
5. EPA Environmental Education Grants
6. EPA 7th Annual P3 Awards: A National Student
Design Competition For Sustainability Focusing on
People, Prosperity and the Planet

28. • http://www.greenroofblocks.com
• http://www.asha.org/public/hearing/disorders/noise.htm
• http://www.liveroof.com/
• http://rubbersheetroll.com>
• LiveRoof Sales Representative for Franklin County:
– Dan Cartell
Life Roof Sales
Coros Perennials
Cell: 216-408-9611
Email: dannycartell@hotmail.com
• http://www.hrt.msu.edu/greenroof/#Benefits of green roofs
• http://www.greengridroofs.com/greenroofs.htm
• http://www.coolroofs.org