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Specifications ;v ?z , ao 7 - 0000 ; �q -612. 5v/ K$ 11#,gvc_ F - ESR -1284 F S REPORT" Reissued December 1, 2005 This report is subject to re- examination in two years. ICC Evaluation Service, Inc. Business/Regional Office • 5360 Workman Mill Road, Whittier, California 90601 • (562) 699-0543 Regional Office • 900 Montclair Road, Suite A, Birmingham, Alabama 35213 • (205) 599 -9800 W W W . Cc -es. o rg Regional Office • 4051 West Flossmoor Road, Country Club Hills, Illinois 60478 • (708) 799 -2305 DIVISION: 07— THERMAL AND MOISTURE PROTECTION 3.2.1.2 Concrete: Concrete decks shall comply with the Section: 07180 — TRAFFIC COATINGS applicable code. 3.2.2 Gacoflex UB -64: UB -64 is a two -part liquid urethane REPORT HOLDER: used in the base and trowel coats of the Gacoflex walking deck system. Parts A and B shall be mixed separately, then GACO WESTERN, INC. combined in equal volumes and mixed thoroughly. The POST OFFICE BOX 88698 mixture shall be applied by spray, brush or roller, and has a SEATTLE, WASHINGTON 98138 -2698 pot life of approximately one hour at 70 °F (21.1 ° C). The components are available in 1- and 5- gallon (3.785 and 18.9 L) pails, and have a shelf life of one year when stored at temperatures between 50 °F (10 °C) and 80 °F (26.7 °C). EVALUATION SUBJECT: 3.2.3 Granules: Granules are crushed walnut shells, 18 -40 or 30 -60 mesh, and are used in the trowel coat of the walking GACOFLEX URETHANE RUBBER WALKING DECK AND deck system. ROOF COVERING 3.2.4 Gacoflex U -66: U -66 is a two -part liquid urethane 1.0 EVALUATION SCOPE used in the top coat of the walking deck system. Parts A and B shall be mixed separately, then combined in equal volumes Compliance with the following codes: and mixed thoroughly. The mixture shall be applied by spray, • 2003 International Building Code (IBC) brush or roller, and has a pot life of approximately one hour at 78 °F (25.5 °C). The components are available in 1- and 5- • 2003 International Residential Code (IRC) gallon (3.785 and 18.9 L) pails, and have a shelf life of one • 1997 Uniform Building CodeTM (UBC) year when stored at temperatures between 50 ° F (10 °C) and 80 ° F (26.7 ° C). Properties evaluated: 3.2.5 Gacoflex U -5677 Sealer: U -5677 sealer shall be used • Roof covering as a seal coat for concrete decks. The product is available in • Fire resistance 1- and 5- gallon (3.785 and 18.9 L) pails, and has a shelf life of one year when stored at temperatures between 50 ° F • Durability (10 ° C) and 80 ° F (26.7 ° C). • Physical properties 3.2.6 Gacoflex E -5320 Primer: E -5320 primer is used as a • Wind resistance primer for concrete decks. The product is available in 1- and 2.0 USES 5- gallon (3.785 and 18.9 L) pails, and has a shelf life of one year when stored at temperatures between 50 ° F (10 ° C) and Gacoflex Urethane Rubber Walking Deck and Roof Covering 80 ° F (26.7 ° C). is intended for use as a traffic coating applied over plywood 3.2.7 Gacoflex 66B Tape: 66B tape is a 4- inch -wide (102 or concrete decks. mm) woven polyester tape used to cover joints in plywood 3.0 DESCRIPTION decks. 3.1 General: 4.0 INSTALLATION The Gacoflex urethane rubber system is an elastomeric 4.1 General: walking deck and roof covering system consisting of three The walking deck material shall be applied when the weather layers of urethane rubber and granules, applied over plywood is dry and the ambient temperature is not less than 40 ° F or concrete decks. When installed in accordance with this (4.4 ° C) and not more than100 ° F (37.7 ° C). report, the system has a Class C roof classification over plywood decks, and a Class A roof classification over 4.2 Preparation of Substrates: concrete decks. 4.2.1 Plywood: Plywood substrates shall be structurally 3.2 Materials: sound, clean and dry, and free of oil, grease, paint and dust. The plywood substrate shall be supported by framing with a 3.2.1 Substrates: maximum spacing of 16 inches (406 mm) on center. The 3.2.1.1 Plywood: Plywood substrates shall be exterior- substrate shall be sloped for proper drainage, with a minimum grade, 5 / 8 -inch-thick (15.9 mm) plywood complying with UBC slope of (2% slope). All plywood joints shall be blocked Standard 23 -2 or PS -1 -95. Plywood shall be installed in with minimum nominal 2 -by -4 supports. Plywood joints and accordance with the applicable code, with all edges blocked. planar depressions shall be filled with UB -64 urethane. A FS REPORTS are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed as an ��� endorsement of the subject of the report or a recommendation for its use. There is no warranty by ICC Evaluation Service, Inc., express or implied, as to any finding or other matter in this report, or as to any product covered by the report. Pnoouci CIA Ii1C9 Copyright © 2005 Page 1 of 2 ,.k. • . s Page 2 of 2 ESR -1284 minimum 5- inch -wide (127 mm) swath of UB -64 urethane gallon per 100 square feet (0.205 L /m The primer shall be shall be applied over the joint, and 66B tape shall be laid into extended several inches onto the existing membrane, and the coating. A second coat of UB -64 shall then be applied shall be allowed to dry a minimum of 24 hours prior to over the tape, so that the tape is completely covered. The application of subsequent coats. When the substrate has materials shall be allowed to dry a minimum of 1 hours dried, Gacoflex U -66 urethane shall be applied at a rate of 1 before application of the base coat. gallon per 100 square feet (0.411 L /m extending the coating 4.2.2 Concrete: Concrete substrates shall be structurally onto the edge of the existing membrane and feathering it out sound, clean, and dry, and free of oil, grease, paint and dust. so as not to leave an abrupt edge. When cured, a second The substrate shall be sloped for proper drainage, with coat of Gacoflex U -66 urethane shall be applied at a rate of minimum and maximum slopes of :12 and 1:12 (2% and 1 gallon per 100 square feet (0.411 L/m Granules are 8.3% slope), respectively. U -5677 sealer shall be applied over distributed into the wet coating, to a uniformly covered the concrete at a coverage rate of V, gallon per 100 square surface. When the texture coat has cured, loose granules feet (0.137 L /m and shall be allowed to dry for a minimum shall be swept from the area and two coats of Gacoflex U -66 of 1 hour. E -5320 primer shall be applied over the dried urethane shall be applied, each at a rate of 1 gallon per 100 sealer coat at a coverage rate of gallon per 100 square square feet (0.411 L/m A minimum curing time of 48 hours feet (0.206 L /m and shall be allowed to dry for a minimum shall be required for the final coat. If substrate damage of 24 hours before application of the base coat. All joints, occurs, the retention of the fire resistive and strength cracks and changes of plane shall be treated as described for properties of the system shall be investigated. plywood joints in Section 4.2.1 of this report. 5.0 CONDITIONS OF USE 4.3 Base Coat: The Gacoflex Urethane Rubber Walking Deck and Roof The UB -64 mixture shall be applied to the substrate at a Covering described in this report complies with, or is a coverage rate of 1'/ gallons per 100 square feet (0.617 L /m2), suitable alternative to what is specified in, those codes listed resulting in a dry-film thickness of approximately 18 mils (0.46 in Section 1.0 of this report, subject to the following mm). The coating shall be allowed to dry a minimum of eight conditions: hours at 70 ° F (21.1 prior to application of the trowel coat. 5.1 The system shall be installed in accordance with this 4.4 Trowel Coat: report and the manufacturer's published installation instructions, by applicators approved by Gaco Western, Two gallons (7.6 L) of UB -64 mixture shall be mixed with 1 Inc. gallons (4.73 L) of granules. The resulting mixture shall be 5.2 The products are manufactured at the Gaco Western, applied to the base coat, with a trowel or roller, at a coverage rate of 1 gallons per 100 square feet (0.617 L /m resulting Inc., facility in Tukwila, Washington, under a quality in a dry-film thickness of approximately 27 mils (0.69 mm), control program with inspections by Underwriters including granules. The coating shall be allowed to dry a Laboratories Inc. (AA -668). minimum of 8 hours at 70 ° F (21.1 °C) prior to application of the 6.0 EVIDENCE SUBMITTED finish coat. 6.1 Data in accordance with the ICC -ES Acceptance 4.5 Finish Coat: Criteria for Walking Decks (AC39), dated March 2000 The U -66 mixture shall be applied over the trowel coat at a (editorially revised August 2004). coverage rate of gallon per 100 square feet (0.206 L /m 6.2 A quality control manual. resulting in a dry-film thickness of approximately 6 mils (0.15 7.0 IDENTIFICATION mm). The coating shall be allowed to dry a minimum of 24 hours. The total system thickness is approximately 51 mils All components of the Gacoflex system shall be identified with (1.30 mm). a label bearing the Gaco Western, Inc., name and address; 4.6 Method of Repair: the product name; the shelf life and date of manufacture, if applicable; the name of the inspection agency (Underwriters All loose coating shall be removed from the damaged area, Laboratories Inc.); and the evaluation report number ( ESR- cutting back to a firm, secured membrane or substrate. The 1284). area shall be cleaned thoroughly. Concrete substrates shall be primed with Gacoflex E -5320 primer, applied at a rate of /2 l r °' ,NQ re's fL,fN /ti4' 70 eX7"eNP v cco< :/ /N< ay6 ,4 ,ue,e o20 9 ,e2,1 ir",9J T/ i/," aEo2 I LgJr// /N4 /-C ✓5/T L a14 / o Aiz y i o e p 4 ,)/7-,ti R N 12 e',, ,&; 4 / ,5- o "Z,q.5- /7/A/4 g4 . r