Ralph October 9, 2013 Midweek Construction Ralph October 9, 2013 Welding on an additional angle to support the walls that are coming. A few HVAC supplies have been delivered to the site. A carpenter is building up the rooftop unit curbs. Holes are cut in the roof for the venting and wood curbs are built. Now we need to lift the galvanized metal curb onto the wood framing.