The Wall Line
Production starts with the most precise robot in our factory, the WBZ-160 beam-center. This saw cuts the top and bottom plates for our wall, and pre-drills for the installation of plumbing, venting and electrical rough-in that is soon to be installed.
It’s all pre-determined by the plans you provide. Everything in our factory is pre-cut: drilled, trimmed, fastened and routed with CNC precision.
Once we’ve got the lumber cut, we move to the Framing Station. This machine produces 40 linear feet of framed wall in about 11 minutes. Because robots are executing the framing, the framed wall is incredibly precise: no misses here.
The wall comes out of the framing station and moves to our Drywall Bridge Station. Here we put a layer of OSB on the exterior wall frames followed by a layer of drywall. The OSB is nailed to the stud, while the drywall is glued to the OSB and screwed to the stud. The Drywall Bridge Station is also where any openings in the wall, doors, windows, outlets and switches are precisely cut to perfectly square dimensions.
We leave the Drywall Bridge Station for the Butterfly Table, which raises the wall upright into the Vertical Station where we install the electrical, plumbing and the fire protection systems. Our expert trade professionals are standing at the Vertical Station, tools beside them, working with uncommon speed and accuracy. They don’t have to measure anything because the openings for fixtures, outlets and switches are located and cut for them by our CNC robots.
From the Vertical Station, we move the wall via trolley to the Insulating Station. The robots lay the wall back down with the stud up and the drywall down, and it’s ready for insulation. You’ve got several different options: batten, denim, rockwool, fiberglass, and dense pack cellulose. Our preferred method is the dense pack cellulose. Because we’re operating in the horizontal and we’re using a vacuum head, we are able to ensure that the cellulose is tight throughout the wall cavity and applied evenly with 3 lbs per square foot of pressure.
From the Insulating Station, the wall moves on to the Exterior Station. Here robots apply the exterior sheathing. Our standard is a Huber product called Zip-R which provides an R value of R-6 on the outside of the frame. Following the application of the exterior sheathing, the door and window openings are cut by our precision robots.
Now we move to the most manual part of our operation -- the Wall Finishing Station. We tape and block the drywall surfaces in the factory. Exterior sheathing is taped and all nail penetrations are liquid flashed.
We come out of the Wall Finishing Station and move the wall to install windows and doors. A pneumatic gantry picks up the window or door, places it in the pre-framed and cut opening, and secures it in place while our carpenters complete the fastening and flashing. Our standard interior doors are an inch and three quarter solid core.
Now the wall is finished. It’s shrink wrapped and placed on a specially configured vertical pallet that ensures its protection during transportation.
The entire system is managed by optimization software that understands exactly what’s in production, so that the walls are stacked on the pallet in the right order for final installation and assembly.