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ROOFING REPLACEMENT, RECOVER AND REPAIR PROJECT INDIAN RIVER COUNTY = JAIL COMPLEX JANUARY 4, 2018 PAGE 8 SECTION 075620 GUTTER WATERPROOFING f i 94 G ,i01 wg"pra- NOR Sikalastic 621 TC (Decothane 20 70-75 SP *Note: Coverage. rates include a reasonable amount of wastage. Rough and textured substrates can significantly affect coverage rates. 1. The base embedrhent coat shall be applied to all horizontal and vertical surfaces by 1/2" - 3/4„ nap roller, brush or airless spray to achieve minimum wet film thicknesses as specified above. 2. While the base embedment coat is still wet, immediately lay precut lengths of conformable reinforcing scrim (Sika Reemat) into the wet base embedment coat, and using a short nap roller with the appropriate roller frame and handle, roll the scrim to force the wet coating up through the scrim to achieve full saturation and embedment. Add additional material, if necessary, to ensure that the mesh is fully saturated and fully conformed to the substrate without any visible pinholes. 3. Minimum. overlap of the reinforcement mesh shall be 2" in all directions. Reinforcement shall turn up all adjacent wall surfaces, etc., until the termination point is accomplished according to the project details and specifications. Membrane terminations should be finalized prior to project start-up and documented in shop drawings, but in general, terminations should occur in raked out mortar joints, saw cut terminations, and where feasible, under installed counter -flashing materials. Tape lines should always be used to achieve a straight and professional looking edge detail. 4. Allow the base embedment coat to cure and dry prior to the next application procedure. 5. . Apply top coat by nap roller, brush or airless spray to achieve minimum wet film thicknesses, as specified in table above. 6. Allow the top coat to cure and dry prior to the next application procedure. 3.05 WATER TEST A. Water test.the gutter by means of ponded water to the gutter depth for a period of 4 hours to check the integrity of the membrane installation. B. Verify that the structure can support the deadload weight of a water test before testing. C. If leaks should occur, the water must be drained completely and the membrane installation repaired. The repaired area should then be retested per the procedures specified in section A above. 3.06 ROOF PROTECTION A. Protect all partially and fully completed waterproofing work from other trades until completion.