Division 7 Ebook Page 486 Senergy Sentry Stucco Wall System, 07 24 16

for Senergy Stucco Wall Systems bulletin. Openings must be flashed prior to window/door, HVAC, etc. installation. 2. Substrate shall be dry, clean, sound, and free of releasing agents, paint, or other residue or coatings. Verify substrate is flat, free of fins or planar irregularities greater than 6.4 mm in 3 m (1/4 in 10'). 3. Unsatisfactory conditions shall be corrected before application of the SENERSHIELD-R. 4. Wrap openings with sheathing fabric by applying mixed SENERSHIELD-R to all surfaces and immediately embedding sheathing fabric. Once dry, apply a second coat to ensure a complete, void-free membrane. Apply fabric in accordance with Secondary Moisture Protection Barrier Guidelines for Senergy Stucco Wall Systems bulletin. 5. Spot all fasteners and pre-coat sheathing joints, terminations, inside and outside corners with mixed SENERSHIELD-R using a 101 mm (4) wide by 20 mm (3/4) nap roller, brush or spray. a. Immediately place and center sheathing fabric over wet SENERSHIELD-R at all sheathing joints, terminations, inside and outside corners, as well as knot holes and check cracks that may exist in plywood or OSB. Ensure fabric extends evenly on both sides of the sheathing joint. b. Lap sheathing fabric 63.5 mm (2 1/2) minimum at intersections. c. Allow to dry to the touch before applying SENERSHIELD-R to entire wall surface. 6. a. Apply SENERSHIELD-R to plywood, OSB substrate(s) or CMU with a 20 mm (3/4) nap roller to a uniform consistent thickness of a nominal 10 wet mils. Prior to application of a second coat, visually inspect to assure sheathing surface is blister free and coating is free of voids and pinholes. Repair if needed and then apply a second coat after the initial coating is sufficiently dry. Note: Two (2) coats of SENERSHIELD-R are required on plywood, OSB and CMU. b. Apply SENERSHIELD-R to other acceptable substrate(s) with a 20 mm (3/4) nap roller to a uniform consistent thickness of nominal 10 wet mils that is free of voids and pinholes. 7. Installed materials should be completely dry and checked before continuing system application. 8. Coordinate work with other trades to assure proper sequencing, detailing and installation of materials.] B. Tyvek StuccoWrap 1. Install according to the manufacturer's instructions and Secondary Moisture Protection Barrier Guidelines for Senergy Stucco Wall Systems bulletin. C. Extruded polystyrene insulation board 1. Vertical Surfaces: Begin at base from firm, permanent or temporary support. 2. Apply horizontally in a running bond. 3. Pre-cut insulation board to fit openings, projections. Insulation board must be a single piece around corners of openings. Stagger vertical joints and corners. Stagger insulation and sheathing insulation board joints. 4. Install Type [M] [S] [LM] [W] mechanical fasteners; For 4' x 8' XPS insulation board, achieve preliminary attachment by applying four mechanical fasteners through insulation board and into the framing or masonry 304 mm (12) up from bottom and down from the top of insulation board and [406 mm (16)] [609 mm (24)] from each end. For 2' x 8' XPS insulation board, achieve preliminary attachment by applying two mechanical fasteners through insulation board and into the framing or masonry 304 mm (12) up from bottom of insulation board and [406 mm (16)][609 mm (24)] from each end. 5. Abut all joints tightly and ensure overall flush level surface. Cut slivers of insulation board and fit into gaps between insulation boards. 6. Apply FIBERLATH MESH over insulation board with 76 mm (3) overlap at edges; secure through insulation and into substrate with mechanical fasteners at [406 mm (16) o.c. horizontally over masonry substrates] [406 mm (16) or 609 mm (24) o.c. horizontally over framing] and 304 mm (12) o.c. vertically. 7. Install expansion joints and other joints as indicated on Drawings. D. Accessories: Attach control joints, corner, casing beads and other accessories per Sentry Stucco CI System Trim Accessories technical bulletin. E. SENERTHIK BASE COAT 1. Base Coat shall be applied over entire surface of FIBERLATH MESH and insulation board with a stainless steel trowel to a uniform thickness of approximately 4.8 mm (3/16). 2. Base Coat must be properly keyed into expanded flange of metal trim. 3. Immediately trowel a second layer of mixed Senerthik Base Coat to a thickness of approximately 4.8 mm (3/16). Level Base Coat with metal or wood slicker to achieve a smooth, uniform surface; total thickness shall be 10 mm (3/8), matching height of grounds of trim accessories. 4. Allow Senerthik Base Coat to cure a minimum of 2 days prior to application of Primer and Finish Coat or architectural features. F. EPS insulation board used for architectural features: . Pre-cut insulation board. 2. Apply mixed Senergy [ALPHA] [ALPHA DRY] Base Coat to the entire surface of insulation board using a stainless steel trowel with 13 mm x 13 mm (1/2" x 1/2") notches spaced 13 mm apart (1/2") apart. 3. Immediately slide board into place and apply pressure over the entire surface of board to ensure uniform contact and high initial grab. Do not allow Base Coat to dry prior to installing. . Abut all joints tightly and ensure overall flush level surface. . Fill gaps with slivers of insulation board. 6. Allow application of insulation board to dry (normally 8-10 hours) prior to application of Senergy Base Coat and Mesh. 7. Rasp flush any irregularities greater than 1.6 mm (1/16").

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