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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 092423-19 <br /> <br />after 4-hour spray period. <br />2. Adhesion per ASTM D 4541: Greater than 50 psi (345 kPA) on prepared CMU <br />substrates. <br />3. Shear Bond Strength: Lab Method. Greater than 50 psi (345 kPA) on prepared CMU <br />substrates. <br />4. Water Vapor Permeance per ASTM E 96 Method B: 5 perms (286 ng per Pa per sec <br />per sq m) <br />5. Air permeance per ASTM E 2178: Less than 0.004 cu ft per min per sq ft (0.02 L per <br />sec per sq m) air leakage at 1.57 psf (75 Pa). <br />6. Field Adhesion Testing per ASTM D 4541: Strength requirements as dictated by <br />design professional based on exposure conditions such as building height, orientation, <br />climate, and building design. <br />7. Surface Burning per ASTM E 84: <br />a. Less than 25 flame spread. <br />b. Less than 450 smoke developed. <br />8. Building Envelope Air Leakage per ASTM E 779 or 1827: Less than 0.4 cu ft per min <br />per sq ft (2.0 L per sec per sq m). <br />9. Volatile Organic Compounds per SCAQMD Rule 1113: Primary air barrier material, less <br />than (50,000) 50 grams per L. <br />C. Design Criteria: <br />1. Structural: Wind and axial loads. <br />a. Design for maximum allowable deflection normal to the plane of the wall: L/360 <br />b. Design for wind load in conformance with code requirements. <br />2. Moisture Control: Prevent the accumulation of water in the wall assembly and behind <br />the exterior wall cladding: <br />a. Minimize condensation within the assembly. <br />b. Drain water directly to the exterior where it is likely to penetrate components in <br />the wall assembly (windows and doors, for example). <br />c. Corrosion resistant flashing to direct water to the exterior in accordance with <br />code requirements, including above window and door heads, beneath window <br />and door sills, at roof/wall intersections, floor lines, decks, intersections of <br />lower walls with higher walls, and at the base of the wall. <br />d. Air Leakage Prevention: Prevent excess air leakage in the design and detailing <br />of the wall assembly. Provide continuity between air barrier components in the <br />wall assembly. <br />e. Vapor Diffusion and Condensation: Perform a dew point analysis of the wall <br />assembly to determine the potential for accumulation of moisture in the wall <br />assembly as a result of water vapor diffusion and condensation. Adjust wall <br />assembly components accordingly to minimize the risk of condensation. Avoid <br />the use of vapor retarders on the interior side of the wall in warm, humid <br />climates. <br />f. Protect rough openings with StoGuard rough opening treatment extended no <br />further than the stucco termination accessory expanded flange (as Sto <br />ExtraSeal will not adhere to some StoGuard rough opening treatments). Refer <br />to Sto Guide Details. <br />g. Where casing bead is used back-to-back at expansion joints, back joints with <br />appropriate StoGuard Transition Membrane. Refer to Sto Guide Details. <br />h. Seal accessory butt joints with sealant. <br />3. Air Barrier Continuity: Continuous air barrier assembly of compatible air barrier <br />components. <br />4. Substrates: