Roof Trusses Arrive - Framing Work Continues
February 10, 2011 - The roof trusses arrived today which was exciting and scary at the same time. These trusses were built in Dallas and shipping them was delayed twice due to unseasonable ice storms (remember the Super Bowl?) that hit our area. We thought there would be a third delay (again because of icy road conditions), but we got a call at 6:00am from ProBuild (truss manufacturer) letting us know the truck was leaving their yard.
When they arrived, the trusses were bigger and heavier than I had imagined. When we were working with them in Sketchup, they were easy to move around. Reality hit when the truck pulled up to the building. The rollback motor that is used to offload them was frozen. The only way to get them off the truck was to unload them by hand (not an option) or drop them from the bed of the truck to the ground. When the 27,000 pound load hit - the earth moved. The reality of getting each of these 450 pound trusses on the roof would prove to be a logistics and engineering challenge. We met with Danny (the Framer), David (our Project Manager), and Adam/Mike our welders and crane operators. We came away with a plan.
The first thing we needed to do was to finish working on the top plates - the 2" x 6" boards placed around the perimeter of the containers and the overhangs. We decided on a double sill plate bolted to the containers, and held in place with welded clips in the free hanging areas. Danny made quick work of cutting out the top plate boards to fit the uneven roofs of the containers. Mike had Adam fabricate a bracket that was hung on the side of the bucket of his cherry picker to hold the heavy welding unit. This allowed him to easily move around the building and make the welds on the 2" x 2" x 1/4" steel beams.
On Friday Danny and his crew arrived early and began building the scaffolding that would be needed to work safely over the video production room and other overhanging areas. The top points of the roof are almost 30' off the ground. Luckily, wind was not a factor this day. Our next blog entry will detail how the trusses and roof decking were installed.
Category: Container Building,