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Exterior Assembly
Roof Assemblies

Builder 3&2 Volume 02 - Construction manual for building structures
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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. The end frames are erected in a similar manner, except that they are held in position by installing purlins and girts. BRACE  RODS.—  After all sidewall girts, cave girts, and base angles have been installed, install the brace rods. Look at figure 9-6. First, attach brace rod clips to the floor. Then, insert the end of the brace rod down through the hole in the sidewall girt. Connect the top end through the cave girt and the cave girt clip. Finally, connect the bottom end through the clip on the  floor. As soon as the four brace rods are in position, use them to plumb the building. To plumb the rigid frame, tighten or loosen the rod nuts at the brace rod clips to adjust the column to plumb condition. Don’t forget: When you tighten one side, the other side must be loosened. 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, drop a plumb bob from the center of the joint of the roof beams at the ridge, with the line over the same side of the roof beam as the chalk line. Adjust the  frame so Figure 9-5.-Frame erection with A-frame props. Figure  9-6.-Installing  brace  rods. the plumb bob is directly over the center mark. Brace the roof beam in this position until the roof panels are in  place. EXTERIOR WALLS.— Uncrate exterior panels and distribute them near where they will be used. First, separate and place panels for each end wall. Place full-length  wall  panels  for  each  comer.  Centrally locate lower and upper sidewall panels and above and below  window  panels,  along  each  side  of  the  building. Place  roof  and  ridge  panels  in  stacks  of  eight  each  on the floor. Make sure you fashion all joints properly. Next,  tighten  all  fasteners  using  metal-backed neoprene  washers  with  all  roof  fasteners  and  with  all shoulder bolts in the sidewalls. Then, properly apply black mastic or sealant to all roof panel side laps and end laps. Start paneling the end wall at one comer and work across to the other comer. Install the comer panel, locating  the  bottom  of  the  panel  over  the  first  two shoulder bolts in the base angle. Use a level to plumb this panel with the other shoulder bolts located at the center  of  the  corrugations.  Locate  the  “below  window panel”  over  the  base  angle  shoulder  bolts,  and  impale over the shoulder bolts. Remove the panel and reinstall it so that it underlaps the first panel by pulling out on the corrugated edge of the first panel. 9-5







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