building (see fig. 9-5). Prop the frame on two saw-horses and attach tag lines to assist in raising the ridge.Raise the frame and brace it up with the A-frames. Theend frames are erected in a similar manner, except thatthey are held in position by installing purlins and girts.BRACE RODS.— After all sidewall girts, cavegirts, and base angles have been installed, install thebrace rods. Look at figure 9-6. First, attach brace rodclips to the floor. Then, insert the end of the brace roddown through the hole in the sidewall girt. Connectthe top end through the cave girt and the cave girt clip.Finally, connect the bottom end through the clip onthe floor.As soon as the four brace rods are in position, usethem to plumb the building. To plumb the rigid frame,tighten or loosen the rod nuts at the brace rod clips toadjust the column to plumb condition. Don’t forget:When you tighten one side, the other side must beloosened.To make sure you are installing the end-wall mem-bers correctly, snap a chalk line across the building,using one edge of the columns for positioning the line.Mark the center of the building on this line. Then, dropa plumb bob from the center of the joint of the roofbeams at the ridge, with the line over the same side ofthe roof beam as the chalk line. Adjust the frame soFigure 9-5.-Frame erection with A-frame props.Figure 9-6.-Installing brace rods.the plumb bob is directly over the center mark. Bracethe roof beam in this position until the roof panels arein place.EXTERIOR WALLS.— Uncrate exterior panelsand distribute them near where they will be used. First,separate and place panels for each end wall. Placefull-length wall panels for each comer. Centrallylocate lower and upper sidewall panels and above andbelow window panels, along each side of the building.Place roof and ridge panels in stacks of eight each onthe floor. Make sure you fashion all joints properly.Next, tighten all fasteners using metal-backedneoprene washers with all roof fasteners and with allshoulder bolts in the sidewalls. Then, properly applyblack mastic or sealant to all roof panel side laps andend laps.Start paneling the end wall at one comer and workacross to the other comer. Install the comer panel,locating the bottom of the panel over the first twoshoulder bolts in the base angle. Use a level to plumbthis panel with the other shoulder bolts located at thecenter of the corrugations. Locate the “below windowpanel” over the base angle shoulder bolts, and impaleover the shoulder bolts. Remove the panel and reinstallit so that it underlaps the first panel by pulling out onthe corrugated edge of the first panel.9-5
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