Nistler CoBPA Late June Progress Update

Progress Update

The air barriers at the east & west elevations are complete and windows continue to be installed. South elevation masonry is continuing and will be wrapping up soon. North elevation framing and sheathing continues to progress. Installation of the sloped roof insulation board, nailer base, and vapor barrier has been completed on the east and south slopes. This will continue on the north and west facing slopes. Installation of the flat roof insulation board and EPDM membrane will finish on level 5 and the level 4 main roof within the next week. Duct work, overhead electrical, mechanical, plumbing, and interior framing continues on first, second, and third floors. Fire proofing continues progress on the fourth floor.

Photo Update

Quality Corner

One of the final steps of the concrete slab work is to verify the floor flatness. It is important that the floor flatness is checked to ensure the quality requirements of the specifications are met. The floor flatness is checked with a 10 foot long straight edge. Any gap within that 10 feet that exceeds 1/4 inch is out of the tolerance and needs to be corrected.

Upcoming Work

  • North Elevation Air Barrier
  • West Elevation Bay Window
  • East Elevation S1 Masonry, S2 Curtain Wall Glazing, S3 Air Barrier & Glazing
  • Center Stair Pour & Handrails
  • Interior S3 Layout, Framing, & MEP Rough-In
  • Interior S2 Inwall Rough-In, HVAC, & Overhead Rough-In
  • Interior S1 Inwall Rought-In & Overhead Rough-In
  • Penthouse Fireproofing and Equipment Pads
  • Sprinkler System Rough-In
  • Elevator Delivery & Installation

Did You Know?

During the technological revolution and the second industrial revolution, Henry Bessemer invented a method to mass-produce steel called the “Bessemer Process”. Before Bessemer, it took a full day to convert three to five tons of iron to steel. With the invention of the Bessemer Process, it takes less than 20 minutes. In 2018, 1712.1 million tons of steel was used. That includes 2.6 million tons used for railways and tracks as well as 18.8 million used solely for concrete reinforcing bars.