Division 7 Ebook Page 480 Senergy Sentry Stucco Wall System, 07 24 16

Sentry Stucco CI Wall System - Section 07 24 16 Water-drainage, mechanically-attached polymer-modified stucco system incorporating continuous external insulation and a water-resistive barrier INTRODUCTION This specification has been assembled to enable the design professional to select or delete sections to suit the project requirements and is intended to be used in conjunction with Senergy typical details, product bulletins, technical bulletins, etc. DESIGN RESPONSIBILITY It is the responsibility of both the specifier and the purchaser to determine if a product is suitable for its intended use. The designer selected by the purchaser shall be responsible for all decisions pertaining to design, detail, structural capability, attachment details, shop drawings and the like. The Wall Systems business of BASF Corporation (herein referred to as BASF Wall Systems) has prepared guidelines in the form of specifications, typical application details, and product bulletins to facilitate the design process only. BASF Wall Systems is not liable for any errors or omissions in design, detail, structural capability, attachment details, shop drawings or the like, whether based upon the information provided by BASF Wall Systems or otherwise, or for any changes which the purchasers, specifiers, designers or their appointed representatives may make to BASF Wall Systems published comments. DESIGNING AND DETAILING A SENERGY SENTRY STUCCO CI WALL SYSTEM General: The system shall be installed in strict accordance with current recommended published details and product specifications from the system's manufacturer. A. Wind Load 1. Maximum deflection not to exceed L/360 under positive or negative design loads. 2. Design for wind load in conformance with local code requirements. B. Substrate Systems 1. Acceptable substrates are: PermaBase Cement Board and other cement-boards conforming with ASTM C1325 (Type A-exterior); poured concrete/unit masonry; ASTM C1177 type sheathings, including, Weather Defense Platinum sheathing, GreenGlass sheathing, eXP sheathing, GlasRoc sheathing, Securock glass-mat sheathing, and DensGlass exterior sheathing; gypsum sheathing (ASTM C79/C1396); Exposure I or exterior plywood (Grade C/D or better); or Exposure I OSB. 2. Painted and otherwise coated surfaces of brick, unit masonry, and concrete shall be inspected and prepared as approved by BASF Wall Systems before application. The applicator shall verify that the proposed substrate is acceptable prior to the Sentry Stucco CI System installation. 3. The substrate systems shall be engineered with regard to structural performance by others. 4. Refer to Sentry Stucco CI System Lath and Trim Accessories technical bulletin for more detailed information regarding metal lath, woven wire, trim requirements, etc. C. Moisture Control 1. Prevent the accumulation of water behind the Sentry Stucco CI System, either by condensation or leakage through the wall construction, in the design and detailing of the wall assembly. a. Provide flashing to direct water to the exterior where it is likely to penetrate components in the wall assembly, including, above window and door heads, beneath window and door sills, at roof/wall intersections, decks, abutments of lower walls with higher walls, above projecting features, at the base of the wall and anywhere else required by local code. [b. Senergy SENERSHIELD-R air/water-resistive barriers can be used, provided a subsequent layer of Tyvek StuccoWrap is applied over the BASF Wall Systems roller applied air/water-resistive barrier.] c. The water resistive barrier must be installed over the substrate according to manufacturer's specifications and applicable building code requirements. d. Openings must be flashed prior to window/door, HVAC, etc. installation to provide moisture protection of the building frame and interior. Refer to Senergy's Secondary Moisture Protection Barrier Guidelines for Senergy Stucco Wall System bulletin. [e. Air Leakage Prevention: provide continuity of air barrier system at foundation, roof, windows, doors and other penetrations through the system with connecting and compatible air barrier components to minimize condensation and leakage caused by air movement.] D.Grade Condition 1. Sentry Stucco CI Wall System is not intended for use below grade or on surfaces subject to continuous or intermittent immersion in water or hydrostatic pressure. Ensure a minimum 4 (101.6mm) clearance above grade or as required by code, a minimum 2 (50.8 mm) clearance above finished grade (sidewalk/concrete flatwork). E. Trim, Projecting Architectural Features NOTE TO SPECIFIER: Installation of the Sentry Stucco CI System with trim shapes that incorporate expanded polystyrene (EPS) outside the slope guidelines referenced in this specification may still qualify for a standard warranty; however, increased maintenance and premature deterioration of the trim shapes that incorporate expanded polystyrene (EPS) shall be expected and any deleterious affects caused by the lack of slope will not be the responsibility of BASF Wall Systems. The design professional has the option to build according to his/her project needs. The design professional must also consider geography, climate, building orientation, wall orientation and adjacent building components when designing with trim shapes that incorporate expanded polystyrene (EPS). The slope guidelines referenced below are provided to offer assistance to the

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