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0 0 <br />When constructing pockets for an H-beam system, measure the beam depth and <br />locate the pockets carefully. It is critical that when the home's frame rests on top of <br />the H-beam, the perimeter of the floor rests squarely on the extended foundation <br />wall. Leave room for a spacer on top of the wall pockets (to prevent corrosion, the <br />steel beams must not be in direct contact with concrete). Leave at least one inch for <br />thermal expansion at the ends of the beams and maintain a minimum of two inches <br />of bearing area for the beams in the pockets (yielding a minimum pocket depth of <br />three inches). <br />Bolt a pressure treated wood sill plate (minimum 2 x 6) to the top of the foundation <br />wall. Connect the home to the foundation according to the approved design. Re- <br />cess nuts into the sill plate and cut off the ends of bolts so they do not project above <br />the sill plate and interfere with the placement of the home. <br />STEP 5. INSTALL INTERIOR SUPPORTS <br />Install piers, columns and H-beams to support the interior of the home according to the <br />approved design. <br />STEP 6. DAMP PROOF FOUNDATION WALL <br />Damp proof the foundation wall no less than up to the height of the planned backfill. <br />STEP 7. BACKFILL AND GRADE <br />Backfill against the foundation wall to the height of the damp proofing. Take care to not <br />damage the drainage system. Grade the fill as per Prepare the Site (p. 10). <br />MANUTAC:ZUtEO \EAUTIOUtIY- <br />Manufacturer's Installation Manual - June 2015 <br />revel me wan. nmaxe sure <br />the foundation is level and <br />straight with no more than a <br />114 inch vertical variation <br />over the entire foundation <br />and no more than 118 inch <br />vertical variation over any <br />two -foot length. <br />Check for Plates. When us- <br />ing an H-beam system, <br />check and compensate for <br />reinforcement plates that <br />add thickness to the chas- <br />sis beam at axle locations. <br />Figure 16. Omitted <br />Figure 16. Omitted <br />eumftsofexca- <br />vation. When a crane will <br />be used, excavate no more <br />than two feet outside the <br />foundation perimeter. Un- <br />excavated ground will pro- <br />vide a more stable base for <br />the crane. <br />Footing heights. Pour foot- <br />ings to a height that will re- <br />duce the need to cut blocks <br />or shim when building peri- <br />meter walls and piers. <br />! z/: <br />Backfilling. Backfill against <br />basement walls only after <br />the home is connected to <br />the foundation or the <br />basement walls may deflect <br />inward or collapse. <br />