TAMKO AWABASE SA User Manual

AWABASE SA

PRODUCT DATA

Self-Adhering SBS Modifi ed Base Sheet

GENERAL APPLICATION INSTRUCTIONS

THIS PRODUCT IS FOR APPLICATION ONLY IN LIMITED STATES AND COUNTIES LISTED BELOW:
(1) IN THE STATES OF ALABAMA, ARKANSAS, ARIZONA, FLORIDA, GEORGIA, LOUISIANA, MISSISSIPPI, NEW
MEXICO, NORTH CAROLINA, OKLAHOMA, SOUTH CAROLINA, TENNESSEE, TEXAS, (2) IN THE FOLLOWING
COUNTIES IN THE STATE OF NEVADA: CLARK, ESMERALDA, AND NYE, AND (3) IN THE FOLLOWING COUNTIES IN
THE STATE OF CALIFORNIA: ALAMEDA, CONTRA COSTA, IMPERIAL, INYO, KERN, KINGS, LOS ANGELES, MARIN,
MERCED, MONTEREY, NAPA, ORANGE, RIVERSIDE, SACRAMENTO, SAN BENITO, SAN BERNARDINO, SAN DIEGO,
SAN FRANCISCO, SAN JOAQUIN, SAN LUIS OBISPO, SAN MATEO, SANTA BARBARA, SANTA CLARA, SANTA CRUZ,
SOLANO, SONOMA, STANISLAUS, VENTURA, AND YOLO.
For more information visit tamko.com. The limited warranty for this product only applies in the permitted states and counties.
Otherwise, this product is sold "AS IS" and without warranty of any kind including any implied warranty or condition of
merchantability or fi tness for particular purpose. See TAMKO's limited warranty for complete details.

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Apply materials only in fair dry weather when the interface temperature (air, roof deck, membrane) is a minimum of 45

STORAGE OF AWABASE SA:

All roofi ng materials must be properly stored in a dry location prior to application. Store materials on platforms off the ground or roof
deck and covered with opaque waterproof tarps that have been properly tied down. During cold or damp environmental conditions,
place the rolls in a heated area. Do not remove wrapper from the roll until ready to use. Wet or damp roofi ng materials must never
be used in the construction of a TAMKO roof assembly. To prevent the rolls from becoming deformed or damaged, store them in a
standing position with the labels right side up and not double stacked. If rolls become deformed, unroll the rolls on the roof and allow
the sun to relax them. Any areas where accidental damage occurs to a roll must be cut out before the material is installed. All factory
splices must be cut out prior to installation. If inadvertently installed, factory splices must be cut out and replaced with a full-width
piece of like material that extends 6 in. on each side of the splice and placed in a 1/8 in. thick layer of TAM-PRO Q-15 Elastomeric
Flashing Cement.

F and rising.

ROOF DRAINAGE:

Proper and adequate drainage of roof surfaces is critical to performance of this product. A minimum roof slope of ¼ in. per ft. is
recommended. Positive drainage is required and is the responsibility of those involved in the design and construction of the roof deck
and supporting structure.

INSULATION OR AWA NAILBASE:

The insulation (if applicable) should be installed according to the manufacturer’s specifi cations in the thickness required. The insulation
should conform to TAMKO requirements.

AWA NAILBASE (if applicable) installed prior to the application of AWABASE SA should be fastened in accordance with TAMKO
requirements.

Consult the current TAMKO Commercial Roofi ng Specifi cations and Details Manual for specifi cation options available online at www.
tamko.com/commercialspecs.

LAYING THE BASE SHEET MEMBRANE:

The roof deck must be smooth, dirt free, dry and free from irregularities. All exposed (open) edges must have wood nailers. In the case
of steel or masonry roof decks, wood nailers shall be provided around the perimeter of the roof and around all openings so fl ashings
may be securely fastened. All metal and masonry surfaces that receive a self-adhered sheet must be primed with TAM-PRO 813 Quick
Dry Primer, TAM-PRO 814 Low VOC Primer, or TAMKO TWP-2 Water Based Primer. Begin all plies of roofi ng base sheet at the low
points. Application will not be acceptable if at any point the fl ow of water is against the laps.

AWABASE SA is to be installed with side laps of 4 inches and end laps of 6 inches. Align the roll and pull both pieces of the split
release fi lm from the back of the base sheet to expose one to two feet of adhesive. Apply pressure to adhere the exposed adhesive to the
top surface of the insulation, or AWA NAILBASE to assure solid contact. Pull both pieces of the split release fi lm off the membrane as
you unroll the roll. Once the entire sheet is in place, use a roller of adequate size and weight to ensure solid contact with the insulation,
or AWA NAILBASE.

AWABASE SA

Self-Adhering SBS Modifi ed Base Sheet

GENERAL APPLICATION INSTRUCTIONS

(CONTINUED)

At all endlaps of AWABASE SA, cut and remove the lower corner of the underlying sheet and the upper corner of the
overlapping sheet to provide a tapered transition at the T-joints. Cut on a diagonal angle 5-1/2 in. long from the end of the roll to
the outside edge. The width of the cut should be 4 in. - the same width as the side lap. (See illustration below).

APPLY A BEAD OF TAM-PRO Q-15 ELASTOMERIC FLASHING CEMENT
AT THE EDGE OF EACH CUT AREA OF THE OVERLAPPING SHEET AS
T-JOINTS ARE FORMED BY SUCCEEDING COURSES.

4” SIDE LAP

4” SIDE LAP

6” END LAP

APPLY TAMKO
ELASTOMERIC FLASHING CEMENT
TO THE EDGE OF THE END LAP
CUT AREA OF THE UNDERLAYING SHEET TO AVOID A CAPILLARY.

TAM-PRO Q-15

5 - 1/2”

Apply a 1/8 in. thick layer of TAM-PRO Q-15 Elastomeric Flashing Cement in the end lap cut area of the underlying sheet.
Remove the release fi lm and press the top sheet into the mastic. Apply a bead of TAM-PRO Q-15 Elastomeric Flashing Cement at
each cut area of the overlapping sheet as T-joints are formed by succeeding courses.

An alternative installation method involves unrolling the entire roll and aligning it. Apply the down slope half of the sheet fi rst
by removing the split release fi lm from the entire length of the roll on the down slope side and pressing the base sheet into
place. Then remove the release fi lm from the up slope half of the roll and press it into place. Roll the entire sheet with a roller of
adequate size and weight to ensure solid contact with the insulation or base sheet. End laps should be completed in the manner
described above.

Once the AWABASE SA membrane has had a chance to bond, check all laps and joints for full adhesion. If the membrane can be
lifted at any area it is not properly adhered. A seam probing tool can be used to check for small voids at the laps. If necessary,
use a hand-held hot air welding tool and seam roller to heat the lap and press into place to ensure proper adherence at the lap.

Information included in this product data sheet was current at time of printing. To obtain a copy of the most current version of this product data sheet, visit
us online at tamko.com or call us at 800-641-4691.

This product is covered by a 5-year limited material warranty. For information regarding or a copy of TAMKO's limited warranty, contact your local
TAMKO representative, visit us online at tamko.com, or call us at 800-641-4691.

tamko.com

Corporate 220 West 4th Street, Joplin, Missouri 64801 800-641-4691
Central District 220 West 4th Street, Joplin, Missouri 64801 800-641-4691
Northeast District 4500 Tamko Drive, Frederick, Maryland 21701 800-368-2055
Southeast District 2300 35th Street, Tuscaloosa, Alabama 35401 800-228-2656
Southwest District 7910 South Central Expressway, Dallas, Texas 75216 800-443-1834
Western District 5300 East 43rd Avenue, Denver, Colorado 80216 800-530-8868

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2012 TAMKO Building Products, Inc. TAMKO® is a registered trademark of TAMKO Building Products, Inc.