TAMKO Synthetic Shield Underlayment - Manual

SAFETY PRECAUTION
Personal fall protection devices,
safety glasses and hearing protection
should always be used when applying
TAMKO SYNTHETIC SHIELD
UNDERLAYMENT. Moisture, frost
or debris may decrease the traction
while walking on TAMKO SYNTHETIC
SHIELD UNDERLAYMENT. PLEASE
EXERCISE CAUTION DURING
INSTALLATION.
USES
TAMKO SYNTHETIC SHIELD UNDERLAYMENT is intended
to perform the functions of an underlayment when installed
between the roof deck and the shingles or other final roof
covering. TAMKO SYNTHETIC SHIELD UNDERLAYMENT
will not prevent wind driven rain from entering the building nor
should it be used as the primary roof covering. The final roof
covering must be installed before the structure is exposed to
adverse weather conditions, such as wind driven rain, high
wind, hail, ice storms, etc. Failure to apply TAMKO SYNTHETIC
SHIELD UNDERLAYMENT properly and according to TAMKO’s
Application Instructions could adversely affect coverage under
the applicable Limited Warranty. TAMKO SYNTHETIC SHIELD
UNDERLAYMENT must not be exposed to UV rays for more
than 180 days.
SURFACE PREPARATION
Apply TAMKO SYNTHETIC SHIELD UNDERLAYMENT when
the deck is dry. To begin, remove any dust, dirt, loose nails
or other protrusions from the deck of new roofs. Remove all
shingles, roofing felt, nails, or other existing roofing materials
and debris from the deck of existing roofs.
Before walking on the underlayment surface, the TAMKO
SYNTHETIC SHIELD UNDERLAYMENT must be securely
fastened to the roof deck using corrosion-resistant nails or
staples with 1 in. round plastic caps. Fall protection devices
should be utilized. Moisture, frost or debris may decrease
the traction while walking on TAMKO SYNTHETIC SHIELD
UNDERLAYMENT.
FOR ROOF DECKS
Apply TAMKO SYNTHETIC SHIELD UNDERLAYMENT from low
to high in shingle fashion so that laps will shed water. Overlap
edge seams 3 in. as marked on the underlayment. End seams
must be overlapped 6 in. and staggered. Fasteners should
be placed in all marked locations but no farther than 12” from
end laps in the field of the roof. The underlayment must be laid
out flat with printed side up without wrinkles and fastened to
a smooth dry surface. Care must be taken not to damage the
surface of the underlayment. DO NOT stretch during installation.
APPLICATION INSTRUCTIONS
©2014 TAMKO Building Products, Inc. TAMKO is a registered trademark of TAMKO Building Products, Inc.
TAMKO
®
SYNTHETIC SHIELD UNDERLAYMENT
THESE ARE THE APPLICATION INSTRUCTIONS FOR TAMKO SYNTHETIC SHIELD UNDERLAYMENT. TAMKO BUILDING
PRODUCTS, INC. SHALL NOT BE RESPONSIBLE FOR LEAKS OR OTHER ROOFING PROBLEMS RESULTING FROM
IMPROPER APPLICATION. FAILURE TO PROPERLY APPLY THIS PRODUCT ACCORDING TO THESE INSTRUCTIONS
COULD RESULT IN UNSAFE CONDITIONS AND COULD ADVERSELY AFFECT COVERAGE OF THE LIMITED WARRANTY.
FASTEN AT
THESE LOCATIONS
FOR ALL
APPLICATIONS
FASTEN AT
THESE ADDITIONAL
LOCATIONS
FOR HIGH-WIND
APPLICATIONS
For questions about TAMKO SYNTHETIC SHIELD UNDERLAYMENT or its application,
contact TAMKO’s Technical Services Department at 800-641-4691.
THESE APPLICATION INSTRUCTIONS WERE CURRENT AT THE TIME OF PRINTING. TO OBTAIN A COPY OF THE MOST CURRENT
VERSION OF THE APPLICATION INSTRUCTIONS, VISIT US ONLINE AT TAMKO.COM OR CALL US AT 800-641-4691.
FASTENING
Do not use nails or staples without round plastic caps.
Fasteners must be long enough to penetrate at least
3/4 in. into the roof deck. Use only corrosion resistant nails or
staples with 1 in. round plastic caps. Fasteners must be flush
and at approximately a 90 degree angle to the roof deck. Follow
the nail pattern as marked on the underlayment.
See illustration for details. Fasteners on vertical and horizontal
laps must be spaced 6 in. on center.
For High Wind Application
requirements: Fasten the
underlayment at all nail
locations indicated by a cross.
Fasteners on vertical and
horizontal laps must be spaced
4 in. on center.
For Low Slope Application:
On pitches 2 in. per foot to 4 in. per foot, cover the deck with
two layers of TAMKO SYNTHETIC SHIELD UNDERLAYMENT.
Begin by applying the underlayment in a 24 in. wide strip
along the eaves and overhanging the drip edge by 1/4 to 3/4
in. Place a full 48 in. wide sheet over the 24 in. wide starter
piece, completely overlapping it. All succeeding courses will be
positioned to overlap the preceding course by 24 in. If winter
temperatures average 25°F or less, TAMKO’s Moisture Guard
Plus
® self-adhering underlayment or any specialty eaves flashing
product should be installed from eaves and rakes to a point to at
least 24 in. inside the interior wall line of the building.
FOR VALLEYS AND RIDGES
Center TAMKO SYNTHETIC SHIELD UNDERLAYMENT in
the valley or over the ridge, working from the center of the
valley or ridge outward in each direction. For valleys, apply the
underlayment starting at the lowest point and work upward.
Overlap all sheets in shingle fashion a minimum of 6 in.
PROVIDE VENTILATION WHEN USING
OVER THE ENTIRE ROOF DECK
When using TAMKO SYNTHETIC SHIELD UNDERLAYMENT
over the entire roof deck the roof must include a system to
provide adequate ventilation for all space immediately below
the roof deck. Such ventilation system should be designed in
accordance with architectural design standards appropriate to
the size, nature, and location of the structure and must include
both ridge and soffit venting. For further information on providing
adequate ventilation, contact your architect, building contractor,
building materials supplier, or TAMKO.
It is the responsibility of the installer to ensure installation is
completed according to directions, and that all construction by-
laws and codes are met.