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FIG. 30 - IPIC GUY RING, EXPLODED VIEV1/ <br />GREASE DUCT ABOVE ROOF <br />When Grease Duct is extended above roofline, special consideration <br />should be given to support and guying requirements. Use of a standard or <br />variable pitch flashing requires that the Grease Duct be stabilized to resist <br />side loading. Figures 29 and 33 depict methods of protecting a flashing <br />from side loads using a full angle ring or plate support. Ventilated thimbie <br />and roof support assemblies inciude lateral support rings, and addi6onal <br />guidance at the roofline is not required. <br />' STORM COLLAR <br />HALF RINGS <br />14 PCS.) <br />HALF CLOSURE BqNDS <br />l2 PCS.) <br />FIG. 29 - FULL ANGLE RING FOR LATERAL SUPPORT <br />CL~ <br />sroi <br />ROOF <br />The guy ring consists of four (4) identical half rings with hardware to <br />secure them together, tuw (2) half closure bands and a storm collar (Fig. <br />30). Select the joint wh~e the guy ring is to be located and assemble the <br />in~er wali joint (Steps 1 to 4 under PIPE AND FITTING ASSEMBLY on <br />Page 3). Sandwich the flange band between the guy rings with the joints of <br />the top and bottom rings 90° apart and the cutouts aligned. Ciamp the guy <br />ring with the nuts and bolts provided. Install the half closure bands above <br />and below the guy ring, then attach the cables or braces (see Fig. 31). <br />Install the storm coliar above the upper half closure. The collar should be <br />caulked with sealant to prevent water entry. <br />FIG. 31 - GUY RING CABLE ATTACHMENT <br />MUST BE <br />=LASHING <br />CASING <br />APPLY SEALANT <br />BEfWEEN COLLAR & CASING <br />STORM COLLAR <br />CABIE THIMBLE <br />CABIE CLAMPS <br />0 <br />"f. <br />GUY RING (IPICGR) wR 3 R MORE CABIES <br />Grease Ducts that extend above the roof, or are installed in severe <br />weather regions, may require a guy ring (IPICGR) to enabie the Grease <br />Duct to resist wind loads. The guy ring is connected to the buil~ng or other NOTE: Cable, cable clamps and cable thimble supplied by others. <br />struchue by means of cables or braces. Table 4 provides the spacing <br />between guy rings and freestand height for Model IPIC Series 4G Grease Cable or braces (supplied by the installer) should be slighUy loose to allow <br />Duct. ~ for thermal e~ansion fw single guy ring installations (Fig. 33) or be <br />equipped with tensioning springs on multiple guy ring installations (Fig. <br />34). To reduce the effect of thermal expansion on the guy cables w <br />braces, a fixed-point suppott (plate or wall support assembly) may be <br />installed immedately below the roofline as shown in Fig. 33. <br />12 <br />~ , <br />(~ <br />PIPE DIAMEfER <br />