Laserfiche WebLink
E. Seal joints as shown and as required for watertight construction. <br />1. Where sealant -filled joints are used, embed hooked flanges of joint members not less than 1 inch <br />(25 nun) into sealant. Form joints to completely conceal sealant. When ambient temperature at <br />time of installation is moderate, between 40 and 70 deg F (4 and 21 deg C), set joint members for <br />50 percent movement each way. Adjust setting proportionately for installation at higher ambient <br />temperatures. Do not install sealant -type joints at temperatures below 40 deg F (4 deg Q. <br />2. Prepare joints and apply sealants to comply with requirements in Division 7 Section "Joint <br />Sealants." <br />F. Soldered Joints: Clean surfaces to be soldered, removing oils and foreign matter. Pre -tin edges of sheets <br />to be soldered to a width of 1-1/2 inches (38 mm), except reduce pre -tinning where pre -tinned surface <br />would show in completed Work. <br />1. Pre -tinning is not required for [zinc -tin alloy -coated stainless steel). <br />2. Do not use torches for soldering. Heat surfaces to receive solder and flow solder into joint. Fill <br />joint completely. Completely remove flux and spatter from exposed surfaces. <br />3.4 ROOF FLASHING INSTALLATION <br />A. General: Install sheet metal flashing and trim to comply with performance requirements, sheet metal <br />manufacturer's written installation instructions, and SMACNA's "Architectural Sheet Metal Manual." <br />Provide concealed fasteners where possible, set units true to line, and level as indicated. Install work <br />with laps, joints, and seams that will be permanently watertight and weather resistant. <br />B. Roof Edge Flashing: Anchor to resist uplift and outward forces according to recommendations in <br />SMACNA's "Architectural Sheet Metal Manual" and as indicated. Interlock bottom edge of roof edge <br />flashing with continuous cleat anchored to substrate at staggered 3 -inch (75 -mm) centers. <br />C. Roof Edge Flashing: Anchor to resist uplift and outward forces according to recommendations in FMG <br />Loss Prevention Data Sheet 1-49 for specified wind zone and as indicated. Interlock bottom edge of roof <br />edge flashing with continuous cleat anchored to substrate at 16 -inch (400 -mm) centers. <br />D. Copings: Anchor to resist uplift and outward forces according to recommendations in FMG Loss <br />Prevention Data Sheet 149 for specified wind zone and as indicated. <br />1. Interlock exterior bottom edge of coping with continuous cleat anchored to substrate at 16 -inch <br />(400 -mm) centers. <br />2. Anchor interior leg of coping with screw fasteners and washers at 20 -inch (500 -mm) centers. <br />E. Counterflashing: Coordinate installation of counterflashing with installation of base flashing. Insert <br />counterflashing in reglets or receivers and fit tightly to base flashing. Extend counterflashing 4 inches <br />(100 mm) over base flashing. Lap counterflashing joints a minimum of 4 inches (100 mm) and bed with <br />sealant. Secure in a waterproof manner by means of snap -in installation and sealant or lead wedges and <br />sealant. <br />3.5 ERECTION TOLERANCES <br />A. Installation Tolerances: Shim and align sheet metal flashing and trim within installed tolerances specified <br />in MCA's "Guide Specification for Residential Metal Roofing." <br />Wabasso Beach Park 07620-7 <br />Indian River County <br />DAA Project No. 6008 <br />L <br />