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rl a ,gn ® °� r kile Most Widely Accepted and Trusted ICC-ES Evaluation Report ESR-3319 Reissued May 2017 This report is subject to renewal May 2019. www.icc-eg.orq I (800)423-6587 I (562) 699-0543 A Subsidiary of the International Code Council® DIVISION:07 00 00—THERMAL AND MOISTURE NT can be used in Types I, II, III, IV and V construction. PROTECTION Under the 2015 IBC for Types I, II, III and IV construction, Section:07 25 00—Water-Resistive Barriers/Weather use is limited to exterior walls of buildings having a Barriers maximum height of 40 feet (12.2 m) above grade plane, Section:07 65 00—Flexible Flashing except for walls in which the water-resistive barrier is the REPORT HOLDER: only combustible component and the exterior wall has a wall covering of brick, concrete, stone, term cotta, stucco DRYVIT SYSTEMS,INC. or steel with minimum thicknesses in accordance with ONE ENERGY WAY Table 1405.2. Under the 2012 IBC for Types I, II, Ill and IV WEST WARWICK,RHODE ISLAND 02893 construction, use is limited to exterior walls of buildings (401)822-4100 having a maximum height of 40 feet(12.2 m)above grade www.tlrvvit.com plane in accordance with 2012 IBC Section 1403.5. EVALUATION SUBJECT: The liquid-applied water-resistive barriers,when installed at a maximum thickness of 20 mils [0.02 inch (0.5 mm)] DRYVIT BACKSTOP NT WATER-RESISTIVE may be used in fire-resistance-rated exterior wall BARRIER/AIR BARRIER AND AQUAFLASH FLEXIBLE assemblies recognized in 2015 and 2012 IBC Table 721.1 FLASHING (2)(2009 IBC Table 720.1 (2)), that specify use of building 1.0 EVALUA7ION SCOPE paper, without changing the assigned hourly rating of the Compliance with the following codes: AquaFlash combined with AquaFlash Mesh may be used ■ 2015,2012 and 2009 International Building Code PBC) as self-adhering flashing under 2015 IBC Section 1405.4 • 2015, 2012 and 2009 International Residential Code® (2012 and 2009 IBC Section 1405.3) and 2015 IRC (IRC) Section R7034 (2012 and 2009 IRC Section R703.8), when installed in accordance with Section 4.3.1 of this • 2015,2012 and 2009 International Energy Conservation report AquaFlash is limited to use in Type V construction Cade(IECC) in accordance with the IBC, except under the 2015 IBC • 2013 Abu Dhabi International Building Code(ADIBC)r where used as flashing for fenestration products as the 2009 lac.zoos lac code sections referenced allowed under 2015 IBC Section 1403.5, and in structures 'rne ADIBC is based on In this roped are the same sections in the ADIac. constructed in accordance with the!RC. Properties evaluated: 3.0 DESCRIPTION • Physical properties 3.1 General: • Water resistance Backstop NT-Smooth and Backstop NT-Texture are • Surface-burning characteristics factory-mixed, liquid-applied, water-resistive barriers that are applied over substrates described in Section 3.5.2. The • Air barrier products are packaged in 5-gallon (19 L)pails and have a • Types I, II, Ill, IV,and V construction shelf life of two years when stored at temperatures no 2.0 USES lower than 40°F (4.4°C). The water vapor transmission value of Backstop NT (when tested in accordance with Backstop NT-Smooth or Backstop NT-Texture water- ASTM E96, Desiccant Method)is greater than 35 g/m2 per resistive barriers are used as alternatives to the water- 24 hours, making the products equivalent to a Grade D resistive barrier specified in IBC Section 1404.2 and IRC barrier. Backstop NT has a flame-spread index of 25 or Section R703.2 for any type of construction. The barriers less and a smoke-developed index of 450 or less when comply with ASTM E2570 as indicated in IBC Section tested in accordance with ASTM E54(UL 723). 1408.4.1.1 and IRC Section R703.9.2.1. The barriers may 3.2 Grid Tape: be used as an air barrier material in accordance with IRC Section NI102 and 2015 IECC Sections C402.5 and Dryvit Grid Tape is a self-adhering woven and treated R402.4 (2012 IECC Sections C4024 and R4024 and glass-fiber mesh that is used with Backstop NT as a 2009 and 2006 IECC Sections 402.4 and 502.4). Backstop treatment for substrate joints and wrapping of rough NT-Smooth and Backstop NT-Texture may be used as openings for windows, doors, mechanical equipment, and water-resistive barriers behind wall coverings. Backstop through-wall penetrations. The fabric is supplied in 4-inch ICC-ES Y l Repone are nte la 6e eilrolniCd al rep:accrual..<ae.thencs or any other anahnie.not spec f'lly addressed.nor are they lo be con.lmed a.an endorseinene any fndmRootherbe sublea{If ile M1nm au.rort or a reconanendaaon epeal, andu' ecy as rue red by to n s no warren,.by ICC f I ondxrv2'¢LL erns or mplicd,m' p anyill fa pm There, .nw . CopyngM®2017 ICC Evaluation Service.LLC.All rights reserved panel ot 3