The framing crew continues working on the addition; a large steel beam to carry out the upper floor is lowered into place. A framer demonstrates a pneumatic tool for attaching metal hangers to wood. The guys lay down the second floor deck, using construction adhesive and tongue and groove plywood. Inside, we find Terry Maitland putting in a footing for the missing basement lally column. We then meet a lead paint inspector, who uses an x-ray machine to gauge the presence and concentration of lead paint in the old building. Tom Silva works on replacing the rotten and underframed back of the old building. We meet a lightning protection inspector from Underwriters Labs, who assesses the building's system.
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