In preparation for the SIP floor for this 8-by-16-foot sunroom addition, the crew fastens an LVL ledger beam to the edge of the conventionally framed main floor, leaving a shimmed space below the ledger to receive the bottom edge of the panel.
While the floor panel is suspended from the crane, one crew member drills holes at anchor-bolt locations while another applies adhesive sealant to the treated-wood sill.
Larger and more complicated SIP floors need underfloor support. Parallam (shown) and LVL beams match up well with SIPs because of their engineered strength, limited shrinkage, and dimensional consistency
After the crane drops four 8-by-24-foot 12-inch-thick floor panels into position, the perimeters are nailed to the pressure-treated sill.