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THE CITY OF SUNNY ISLES BEACH <br />PROJECT NO. 21-1011 <br />BUILDING DEPARTMENT RELOCATION TO ANNEX <br /> <br />Project No. 21-1011 November 2024 092423-25 <br /> <br />3. CMU Surfaces: <br />a. Repair static cracks up to 1/2 inch (13 mm) wide with Sto RapidGuard. Rake <br />the crack with a sharp tool to remove loose or friable material and blow clean <br />with oil-free compressed air. Apply the crack filler with a trowel or putty knife <br />over the crack and tool the surface smooth. <br />b. For moving cracks or cracks larger than 1/2 inch (13 mm), consult with a <br />structural engineer for repair method. Protect repair from weather until dry. <br />c. Liberally apply coating to the surface with a 3/4-inch (19 mm) nap roller or <br />spray equipment to a wet thickness of 10 to 30 mils (0.254 to 0.762 mm) (Sto <br />EmeraldCoat) or 50 wet mils (1.27 mm) (Sto AirSeal), depending on surface <br />condition. Apply to a uniform thickness. Additional coats may be necessary to <br />provide a void and pinhole free surface. Protect from weather until dry. <br />F. Air and Moisture Barrier Connections and Shingle Laps: <br />1. Coordinate installation of connecting air barrier components with other trades to <br />provide a continuous air tight membrane. <br />2. Coordinate installation of flashing and other moisture protection components with <br />other trades to achieve complete moisture protection such that water is directed to <br />the exterior, not into the wall assembly, and drained to the exterior at sources of <br />leaks; windows, doors and similar penetrations through the wall assembly. <br />3. Splice-in head flashings above windows, doors, floor lines, roof/sidewall step flashing, <br />and similar locations with StoGuard detail component to achieve shingle lap of the <br />air/moisture barrier such that water is directed to the exterior. <br />3.6 CONTINUOUS INSULATION INSTALLATION <br />A. Attach insulation boards to framing with corrosion resistant bugle head metal screws and 1- <br />1/4-inch (32 mm) metal lath locks or other corrosion resistant cap fastener. Use only <br />enough fasteners, typically 3 per board mid-span, to temporarily hold the board in place. <br />Lath attachment is intended to permanently hold it in place. <br />B. Attach in courses with vertical joint staggered. <br />C. Cut insulation board in an "L" shape around openings. Tightly abut insulation board joints <br />and interlock inside and outside corners. Trim or rasp board flush for square corners. <br />D. Seal gaps or open joints with Sto TurboStick or Turbostick Mini spray foam and rasp or <br />shave flush with surface. <br />E. Do not allow insulation board to be exposed to weather from more than 60 days. <br />3.7 SHEATHING INSTALLATION <br />A. Install sheathing in courses over the continuous insulation to permanently hold the <br />insulation boards in place. Install immediately following or in tandem with the continuous <br />insulation. <br />B. Abut gypsum sheathing joints. Gap wood sheathing 1/8 inch (3 mm) at joints. <br />C. Install in compliance with applicable code and sheathing manufacturer's instructions, except: <br />offset sheathing joints from continuous insulation board joints by a minimum of 6 inches <br />(152 mm). Support all vertical joints with studs, and use minimum #8 corrosion resistant <br />screw fasteners with minimum three thread penetration into metal studs, minimum 1 inch <br />(25 mm) penetration into wood studs. Space fasteners no greater than 8 inches (203 mm)