The basic frame and all Zip sheathing was completed on September 16th.
In the two photos below, you’ll see how the Zip is being wrapped over the top of the second floor walls. Once we prep for the future attic insulation (we need to install some type of baffle to retain the 18″ of cellulous), Zip will be installed on the rest of the second floor ceiling and the seams will be taped. As can be seen in the following photos, the finished side will face down. It could have gone either way, but since the tape will be placed on the bottom, this seemed to make most sense.
That’s 1/2″ Zip in the photos above. The same thickness we used on the exterior walls (we used 5/8″ Zip on the roof). Looking back, we could have saved a bit of weight and money by using 7/16″. I was a bit concerned with the ability of the roof trusses to hold the weight of the drywall, zip, and 18″ of insulation. But they’re engineered to support 10lbs/sqft, which provides a reasonable margin of safety, as the weight of the drywall, Zip, and insulation amounts to less than seven.
The combination of perspective, background lighting, and lack of windows and porch make the house look mighty small. Hard to believe that its over 2,000 square feet.
The rest of the Zip was taped a couple of days later. The Zip tape dispenser/roller proved difficult to use effectively. The roller seems to have a slight crown that makes it difficult to seal the edges and causes the roller to drift. But the job was completed: