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L-feet are available for 5/16" lag screws or 3/8" lag screws. <br />' They can be used with most popular mounting/flashing <br />products for composition shingle and shake shingle roofing <br />and provide an economical, high-strength base for the Alpha <br />system. <br />Tile and slate roof hooks are fabricated from high-grade <br />stainless steel. The Alpha roof hooks are designed to facili- <br />tate installation on existing roofs. Flat tile roof hooks are <br />adjustable to two riser heights allowing them to be used on <br />tile roofs installed with or without tile battens. The curved <br />tile roof hooks are designed so that the rail mounting riser <br />can be moved to position the riser in the valley of the tile <br />while still allowing the base of the roof hook to be secured <br />to a joist or rafter. <br />Hanger bolts are available for use on corrugated and flat- <br />panel metal roofs and for use with wood or metal rafters or <br />purlins. Hanger bolts include an L-foot preassembled with <br />rail attachment hardware. An EPDM rubber washer seals the <br />hanger bolt against water intrusion. <br />Alpha roof attachments <br />· Rail attachments for virtually any roof type <br />Preassembled with rail attachment hardware <br />· High-grade stainless steel ensures strength <br />and durability <br />· Work with all Alpha rail types <br />Base rails <br />The Alpha system comprises foul distinct sizes of aluminum <br />base rails. This allows users to choose a rail size that optimiz- <br />es the balance between rail attachment frequency and rail <br />cost. Larger, higher-strength rails are capable of spanning <br />larger distances between roof attachments but, because they <br />are strengthened by additional metal, they cost somewhat <br />more per foot than lighter rails. Lighter rails cost less per <br />foot but may need to be attached more often. With four rail <br />weights from which to choose, Alpha gives system designers <br />the ability to optimize based on environmental loads, labor <br />costs and system layout. <br />Alpha rails are designated 7/49, 13/58, 19/63 and 25/65. The <br />first number is an indication of the rail's relative strength. <br />The second number is the height of the rail in mi Iii meters. <br />Module clamps and roof attachment components are identi- <br />cal for all four rail types which make parts availability and <br />inventory management simpler and more reliable for dis- <br />tributors and installers alike. <br />Rails are available in Standard lengths ranging from 2 feet to <br />12 feet in 2-footincrements and 20 foot lengths. Stan- <br />dard length rails can be used to accommodate any number <br />of modules and are intended for use with standard Alpha <br />splices and the Alpha telescoping rails for precise, aestheti- <br />cally pleasinginstallations.Alpha Tailored Rails are available <br />in lengths corresponding to 2,3,4 or 5 standard 60-cell <br />modules with a maximum width of 3'-3.5" (1004 mm) <br />including end and inter-module clamps.Tailored Rails are <br />ideal for larger projects where installation speed is para- <br />mount and a small amount of rail projecting beyond the <br />modules is not critical. <br />Mounting Systems can also supply rails cut to custom lengths <br />up to 35 feet.1 Minimum older quantities apply. Please con- <br />suit Mounting Systems for more information. <br />Mounting Systems also makes Alpha rails available for bull <br />purchasing, making it an even better value. Please consult <br />Mounting Systems for quantity and pricing information. <br />All Alpha rail is available in black anodizing for aestheti- <br />cally sensitive applications. Black anodized module clamps <br />and other Alpha system accessories such as telescoping end <br />pieces are also available. <br />To finish off the Alpha rails and make installations even <br />more aesthetically pleasing, rail end caps are available to <br />cover the rail ends and hide the unfinished metal exposed <br />during rail fabrication. End caps can be customized with <br />your company's logo or other graphics, at nominal additional <br />cost. Please contact Mounting Systems for costs and details. <br />4, <br />f Base rail 7/49 <br />g Base rail 13/58, 19/63 and 25/65 <br />0 <br />1 Oecause of material handling concerns foi rails or increasing length. Mounting 5,5tems recommends a maximum rail length of 26 feet (8 m) for most applications. <br />--- <br />. <br />Alpha <br />2