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IRC-1838 Indian River County <br />Main Library <br />Roof Replacement 07 52 16-9 Modified Bitumen Roofing (Revision 1) <br />Provide a continuous bead of sealant along outside edge of termination bar. <br />6. Sheet metal incorporated into the roofing system shall be sealed off with stripping <br />ply. Stripping plies shall be installed in roof cement and fit tight to the edge of the <br />sheet metal. The stripping ply shall extend four inches beyond sheet metal onto <br />roof membrane. Stripping ply shall be installed prior to application of surface ply. <br />7. Provide sealant installed to fill void between edge of sheet metal and surface ply <br />edge (i.e. at metal edge, pipe penetrations, etc.) properly tooled to ensure <br />adhesion and slope to shed water. Broadcast granules into properly installed <br />sealant. <br />G. Fluid Applied Flashing Application <br />1. Using masking tape, mask the perimeter of the area to receive the flashing system. <br />Apply resin primer to substrates requiring additional preparation and allow primer <br />to set. <br />2. Pre-cut fleece to ensure a proper fit at transitions and corners prior to membrane <br />application. <br />3. Refer to manufacturer’s installation instructions for application rates and additional <br />installation information. <br />4. Broadcast granules into horizontal surface of fluid to match adjacent surface ply. <br />H. Roof Drain <br />1. Provide roof drain flashings as indicated in detail drawing. Refer to the above <br />requirements for fluid applied flashings. <br />2. Refer to Section 22 14 00. <br />I. Retrofit Roof Drain <br />1. Adhere base ply in full bed of solvent free adhesive around drain bowl. <br />2. Install retrofit roof drain according to manufacturer’s installation instructions and <br />strip-in with stripping membrane to extend 4” beyond drain flange. <br />3. Provide fluid applied flashing as shown in the contract drawings and indicated <br />above. <br />4. Refer to Section 22 14 00. <br />J. Walk Pad Material <br />1. Apply walk pad material to a clean, dry surface. <br />2. Prior to application, cut walk pad material into maximum 5’ lengths and allow to <br />relax until flat. A straight edge or chalk line should be used to ensure straight <br />square cuts. Do not cut the walk pad material directly on the roof surface. <br />3. Position walk pad material so as to leave minimum 2” gaps between panels to <br />allow for proper drainage. <br />4. Adhere walk pad panels to surface ply with roof cement applied to the back of the <br />panels in spots approximately 5” square. Use a notched trowel to keep the cement <br />3/8” thick. <br />5. Walk-in each panel to ensure complete contact with the membrane surface. <br />6. Provide walk pads at the following locations: <br />a. Around roof hatches. <br />b. Around HVAC units. <br />K. Ponding Water: The ponding of any water on the roof surface after installation of the roofing <br />system is not acceptable and will be grounds for rejection of the roof. Ponding is herein <br />defined as precipitation remaining in a four square foot area or larger, 1/4 inch or deeper <br />for a period of 24 hours from the termination of precipitation. Contractor shall not apply <br />surface ply until verification of proper drainage has been determined. Contractor shall be <br />responsible for modifications to roof system to ensure proper drainage including but not