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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 092423-31 <br /> <br />G. Scratch Coat: Apply approximate 3/8-inch (9 mm) scratch coat of Sto ExtraSeal by spray or <br />trowel any time after the skim coat application is dry. Scratch the surface horizontally with a <br />stucco rake tool. Moist cure the scratch coat during hot or extremely dry weather conditions. <br />H. Brown Coat: Allow scratch coat to dry minimum 24 hours and install stucco brown coat in <br />accordance with applicable codes and manufacturer's requirements. Limit total thickness, <br />including Sto ExtraSeal skim coat and scratch coat, stucco brown coat, and allowance for <br />finish coat, to 5/8 inches (16 mm) maximum. <br />I. Crack Defense: <br />1. Apply base coat over moist cured stucco brown coat with spray equipment or <br />stainless-steel trowel to a uniform thickness of approximately 1/8 inch (3 mm). <br />2. Work horizontally or vertically in strips of 40 inches (1016 mm), and immediately <br />embed mesh into wet base coat by troweling from center to edge of the mesh. <br />3. Overlap mesh 2-1/2 inches (64 mm) at mesh seams and at overlaps of detail mesh. <br />4. Feather seams and edges. Avoid wrinkles in the mesh. The mesh must be fully <br />embedded so no mesh color shows through the base coat when it is dry. <br />5. Re-skim with additional base coat if mesh color is visible. <br />6. Do not install base coat or mesh over joints or accessories in stucco wall assembly. <br />3.12 Primer Installation: Moist cure stucco brown coat for a minimum of 48 hours. <br />1. StoPrime Hot: Allow stucco to dry an additional 48 hours. Apply primer evenly with <br />brush, roller or proper spray equipment over the clean, dry stucco, and allow to dry. <br />Age of stucco must be minimum 7 days before application of finish. <br />2. StoPrime Sand: Wait until stucco is 28 days old or the pH level of the surface is below <br />10 before applying primer. Age of stucco must be minimum 28 days before <br />application of finish or pH must be below 10. <br />3. StoPrime: Wait until stucco is 28 days old or the pH level of the surface is below 10 <br />before applying primer. Age of stucco must be minimum 28 days before application of <br />finish or pH must be below 10. <br />B. Finish Installation: <br />1. Apply finish to primed stucco and foam build-outs when dry. <br />a. Apply finish by spraying or troweling with a stainless-steel trowel, depending on <br />the finish specified. <br />b. Follow these general rules for application of finish: <br />2. Allow 28-day stucco age or check for pH less than 10 before applying finish. If <br />StoPrime Hot is used, allow minimum 7-day age of stucco. <br />3. Avoid application in direct sunlight. <br />4. Apply finish in a continuous application, and work a wet edge towards the unfinished <br />wall area. Work to an architectural break in the wall before stopping to avoid cold <br />joints. <br />5. Weather conditions affect application and drying time. <br />a. Hot or dry conditions limit working time and accelerate drying. <br />b. Adjustments in the scheduling of work may be required to achieve desired <br />results; cool or damp conditions extend working time and retard drying and <br />may require added measures of protection against wind, dust, dirt, rain and <br />freezing. <br />c. Adjust work schedule and provide protection. <br />6. Float "R" (rilled or swirl texture) finishes with a plastic float to achieve their rilled <br />texture. <br />7. Do not install separate batches of finish side-by-side. <br />8. Do not apply finish into or over sealant joints or joint accessories. Apply finish to