As promised in my prefabricated house wall panels post today we erected the exterior wall panels for the house that I’m documenting in the Total House Construction Series – Foundation to Finish. As you can see in the photos all of the prefabricated wall panels were delivered on trucks from the factory and then erected onto the house foundation with a crane.
This house is being built with the ZIP system sheathing product which I’m very excited about. The sheathing has a distinctive green color as you can see in the photos. The ZIP system sheathing is an Advantec OSB product that also has a vapor barrier adhered directly to the sheathing. Once all the sheathing is applied, all the joints will be taped and sealed according to the manufacturers specifications. The ZIP system eliminates the need for a vapor barrier system like Tyvek.
The house that we’re building is approximately 2,400 sf in plan which is a very large ranch style home. All of the exterior prefabricated wall panels were erected in 4 hours. The beauty of prefabricated wall panels is the huge savings in the construction schedule.
If this house was fully built on site it would have taken a 4 man crew several days to frame the walls and stand them up. And that estimate assumes nice weather for those days. With the prefabricated approach we were able to set the wall panels only days after the concrete foundation was poured.
As you can see in a days time we have all of the exterior walls for this new house and the garage erected. We will spend a day or two preparing the walls for the truss delivery next week. Each of the walls will be checked for straightness and plumb.
Please come back for a future post on erecting the wood trusses and sheathing the roof.