Building With Cross Laminated Timber

A CLT job is a logistics puzzle, and to do it profitably requires planning. At the start of the job, it took time to sort the panels with a crane, but stacking them in the order they would be used saved valuable crane time in the long run.

Panels were craned into place. Lifting straps were run through holes drilled near the tops of the wall panels.

The sill plate dimensions needed to be spot on, as panels can’t be altered much. Metal hold-down straps anchored the panel to the plate.

Wall panels were stood in place on the sills and held plumb with diagonal bracing—just like a stick-framed wall.

The panel edges are notched at the factory to receive vertical splines (the darker boards) that hold adjacent panels together.

To maneuver floor panels into position, the crew attached the crane cables to threaded hardware embedded in the face of the panels.

The engineer specified a series of closely spaced clips to secure the first- and second-floor wall panels to the intervening floor panel.

A worker applies a liquid-applied flashing product around a window opening. This material will be spread out to form a continuous film before the windows and insulation are installed.

The exterior was insulated with rigid mineral panels and covered with vertical wood siding. Any types of rigid insulation and siding could have been used, however.

Outdoor-rated wiring was attached to the panel exteriors, then drilled through to the inside at each fixture location. Plumbing was routed through interior framed partitions and chases.

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