Short Form Guide Specification
Section 07555 Roof Ballast / Green Roof System
Part 1 - General
1.01 Scope of Work
A.
Furnish and install a Green Roof Blocks system in accordance with
specifications as provided by Green Roof Blocks.
1.02 Related Sections
A.
Section 07555: Roofing Membrane
B.
Section 07220: Roof Insulation
C.
Section 07715: Fascias
1.03 References
A.
Applicable American Society for Testing and Materials (ASTM) Standards
B.
Factory Mutual Loss Prevention Data Sheet 1-35
C.
Underwriters Laboratories
D.
ANSI/SPRI RP-14 Wind Design Standard for Vegetative Roofing Systems
E.
ANSI/SPRI VF-1 External Fire Design Standard for Vegetative Roofs
1.04 System Description
A.
Green Roof Blocks used to ballast single ply roof membrane.
B.
Green Roof Blocks placed over adhered roofing systems.
1.05 Submittals
A.
Submit manufacturer's installation specifications.
B.
Submit copy of Green Roof Blocks warranty.
C.
Submit performance testing.
1.06 Quality Assurance
A.
High grade aluminum with smooth corners and edges with no sharp or
irregular surfaces that may cause injury or damage roofing.
B.
Minimal growth medium mineral content finer than ¼ inch in diameter.
C.
Rubber pad material to secured to Green Roof Block.
D.
Plants in healthy condition and properly embedded in growth medium.
10 Bay Oaks Court – Lake Saint Louis, MO 63367
phone 314-220-2113 fax 636-265-2037
www.greenroofblocks.com
1.07
Delivery, Storage, and Handling
A.
Deliver materials in good condition free from shipping damage and ready
for installation.
B.
Remove wrapping materials from palletized Green Roof Blocks
immediately upon arrival to jobsite. Install materials on roof top within 48
hours of job site delivery. Thoroughly irrigate newly installed Green Roof
Blocks and follow manufacturer’s printed Maintenance Guidelines.
C.
Handle materials to prevent damage.
D.
Do not exceed the structural capacity of deck if placing Green Roof Blocks
on the roof.
E.
Protect membrane and installed areas of Green Roof Blocks from damage
when transporting pallets of Green Roof Blocks or other material. Place ¾
inch plywood sheets in traffic path or use carts with pneumatic tires.
1.08 Warranty
A.
Plants carry a one year limited warranty against disease and defect.
B.
All Green Roof Blocks carry a twenty year limited warranty.
Part 2 - Products
2.01 Manufacturer
A.
Green Roof Blocks
10 Bay Oaks Court
Lake Saint Louis, MO 63367
314-220-2113
2.02 Materials
A.
Green Roof Blocks
2.03 Related Materials
A.
Optional irrigation materials.
B.
Optional slip sheet: in accordance with roofing manufacturer specifications.
C.
Metal terminations used to retain or secure Green Roof Blocks shall be
manufactured by Saint Louis Metalworks Company or an approved equal.
D.
Paver blocks used in conjunction with Green Roof Blocks shall be approved
by the membrane manufacturer.
10 Bay Oaks Court – Lake Saint Louis, MO 63367
phone 314-220-2113 fax 636-265-2037
www.greenroofblocks.com
Part 3 - Execution
3.01 Preparation of Surface
A.
Comply with manufacturer's instructions for preparation of substrate to
receive membrane roofing system. Install roof membrane, flashings and
insulation in accordance with manufacturer's instructions.
B.
If required by membrane manufacturer or if heavy foot traffic is anticipated
install a slip sheet as recommended by the membrane manufacturer.
3.02 Green Roof Blocks System Designs
A.
Green Roof Blocks roof greening system used to ballast roofing system
1. Install roof ballast pavers at roof edges, around mechanical equipment,
and along access path ways.
2. Install protective covering at all vertical flashings consisting of a
sacrificial layer of roofing membrane, architecturally fabricated sheet
metal, or a reflective roof coating.
3. Install Green Roof Blocks in straight bond using roof ballast pavers to fill
in areas not covered with Green Roof Blocks.
4. Maintain 1/2 inch minimum and 1 inch maximum distance between
adjacent Green Roof Blocks.
5. Install optional irrigation system.
6. Use a slip sheet between the pavers and the roof membrane at
designated areas of foot traffic and at mechanical units.
7. At ridges or valleys, cut to fit roof ballast pavers or specify custom
manufactured Green Roof Blocks to fit irregular shaped areas.
OR
B.
Green Roof Blocks roof greening system resting on adhered or partially
attached roofing systems
1. Install roof ballast pavers or membrane manufacturer’s walkway
material at roof edges, around mechanical equipment, and along access
pathways not covered by Green Roof Blocks.
2. Install protective covering at all vertical flashings consisting of a
sacrificial layer of roofing membrane, architecturally fabricated sheet
metal, or a reflective roof coating.
3. Install Green Roof Blocks in straight bond using roof ballast pavers to fill
in areas not covered with Green Roof Blocks, or coat areas not covered
by Green Roof Blocks with reflective roof coating.
4. Maintain 1/2 inch minimum and 1 inch maximum distance between
adjacent Green Roof Blocks.
5. Install optional irrigation system.
10 Bay Oaks Court – Lake Saint Louis, MO 63367
phone 314-220-2113 fax 636-265-2037
www.greenroofblocks.com
6. Use a slip sheet between the pavers and the roof membrane at
designated areas of foot traffic and at mechanical units.
7. At ridges or valleys, cut to fit roof ballast pavers or specify custom
manufactured Green Roof Blocks to fit irregular shaped areas.
10 Bay Oaks Court – Lake Saint Louis, MO 63367
phone 314-220-2113 fax 636-265-2037
www.greenroofblocks.com