Instruction Manual

3.04 INSTALLATION
A. General:
1.
Install only as much roofing recovery board as can be covered by the roofing materials in the same day
2. GreenGuard
®
PB6 and GreenGuard
®
PLYGOOD-PG38 can be used in conjunction with the following
black or light-colored roof membrane types: EPDM, TPO.
3. GreenGuard
®
PB6W/PB6 PLUS/PB6FA/PB38FA are designed for use with all types of single-ply roof
membranes, including CPA, NBP and PVC roof membranes. Since different test methods are used to
measure plasticizer migration, the roof membrane manufacturer should be contacted to confirm use of
these roofing recovery boards prior to installation.
4. Installation: GreenGuard
®
PB6/PB6W/PB6 PLUS/PB6FA Fanfold Roofing Recovery Boards:
a. Unfold three sections of the 50 ft. (15.2 m) bundle of GreenGuard
®
Roofing Recovery Board and
attach it to the existing roof deck using 2-3 in. (76 mm) diameter plates and screws that are long
enough to penetrate through the existing roof system to the underlying roof deck. Attach
GreenGuard
®
Roofing Recovery Board using one of the fastening patterns shown in Figures 2, 3 or
5. Alternative fastening patterns must be approved by the roofing recovery board manufacturer
prior to starting the job. Additional fasteners may be used if necessary to secure the roofing
recovery board during windy conditions or when the surface of the existing roof system has incon-
sistencies. Note: FM Approvals requires that a minimum of 4 fasteners [1 fastener/4 ft
2
(1.2 m
2
)] be
used for insulations having any one dimension greater than 4
feet (1.2 m) on all jobs that involve
buildings insured by FM Approvals underwriter companies.
b. The GreenGuard
®
PB6, PB6W and GreenGuard
®
PB6 PLUS should be installed with the longest
dimension
perpendicular to the membrane seams and with end joints staggered.
5. Installation: GreenGuard
®
PG38/PB38FA Roofing Recovery Boards:
a. Attach GreenGuard
®
Roofing Recovery Board to the existing roof deck using 2-3 in. (76 mm)
diameter plates and screws that are long enough to penetrate through the existing roof system to
the underlying roof deck. Attach GreenGuard
®
Roofing Recovery Board using the fastening pattern
shown in Figure 1 or Figure 4. Alternative fastening patterns must be approved by the roofing
recovery board manufacturer prior to starting the job. Additional fasteners may be used if
necessary to secure the roofing recovery board during windy conditions or when the surface of the
existing roof system has inconsistencies. Note: FM Approvals requires that a minimum of 4
fasteners [1 fastener/4 ft
2
(1.2 m
2
)] be used for insulations having any one dimension greater than
4 feet (1.2 m) on all jobs that involve buildings insured by FM Approvals underwriter companies.
b. The GreenGuard
®
Roofing Recovery Boards should be installed with the longest dimension
perpendicular to the membrane seams and with end joints staggered.
6. Refer to the UL, LLC Roofing Materials Guide and the FM Approvals “RoofNav” for details regarding
specific roof systems.
7. Prior to installation of the roof membrane, inspect the surface of the GreenGuard
®
Roofing Recovery
Board and remove any pieces of gravel that may potentially puncture the roof membrane during
installation.
8. Install the roof membrane in accordance with the membrane manufacturer’s installation instructions for
mechanically attached or loose-laid and ballasted roof systems. (Note: No fasteners are required to
attach GreenGuard
®
Roofing Recovery Boards used in loose-laid and ballasted roof systems.)