Roof PurlinsPURLIN TYPEClick the down arrow to select the desired purlin and mount. The first letter is member type where:D = double C,R = hot rolled wide flange,W = welded plate flange,U = hot rolled channel,C = Cee shape,Z = Zee member, andJ = oist. !or type of mount:" = bypass,! = flush, and# = outside mount with no lap. The C$ purlin is a C# purlin with a lapped piece at each support point. %! is for an open web steel oist attached to the top of the rafter. FLANGE STRAPCheck the &'se& bo( if the inside flange of the roof purlins are to be braced.This bracing is sometimes called )bridging angles.)The ma(imum spacing of the flange braces in set in the *+,"'-$*.roof /0 for fastening through panels and *+,"'-$*.roof 10 for standing seam roofs. SUPPLYCheck the &+upply& bo( if the inside flange braces are to be furnished with the building. OFFSET .in, mm0The non bypass roof purlins need not be flush with the outside face of the rafter.The outside purlin flange can be set inward .offset0 from the roof line. PROJECTION .in, mm0The non bypass roof purlins need not be flush with the outside face of the rafter.The outside purlin flange can proect beyond the face of the rafter .proection0. PEAK SPACING .ft, mm0The distance from the roof surface intersection to the web of the nearest purlin as measured along either the roof surface or the rafter surface depending on *2/3. !or single slope buildings, set to 4ero and the program will:.50 use e6ual spacing for the first and last purlin on the surface when the set purlin spacing option is used, or.70 use e6ual spacing for all the purlins when the set purlin spacing option is not used. MAX SPACING .ft, mm0The ma(imum permitted purlin spacing. The program will start with this spacing but may reduce to a smaller 8alue for strength or economy reasons. +pacing is measured along the roof surface. SET SPACE .ft, mm0-f the final purlin spacing is to be set by user and not determined by the program, use that spacing. -f the program is to determine the spacing, set to 4ero. SET DEPTH .in, mm0-f the user wants to set the purlin depth, use that depth.!or the program to determine the purlin depth, set to 4ero. SET LAP .ft, mm0The lap if it is to be set by the user, else 9 and the program will determine the lap. EAVE STRUT TYPEThe 7 letter code for the ea8e strut type selected. &::& : ;a8e strut will be as specified in *+,"'-$*.roof730 and *+,"'-$*.roof130,&;#& : ;a8e strut outside mount,&;!& : ;a8e +trut !lush mount,&C#& : Cee shape #utside mount,&C!& : Cee shape !lush mount,&Z!& : Zee shape !lush mount,&Z"& : Zee shape bypass ea8e strut,&Z#& : Zee shape outside mount,&%!& : %oist shape flush mount, or&%#& : %oist shape outside mount. !& attach to the soldier columns. &>!& ea8e strut types span between rigid frames and do not attach to soldier columns.