200000 - MEP-FP

210000 Sprinkler 01 End Runs - QN

For pendent type sprinkler systems, per NFPA-13, end runs of a sprinkler system that does NOT exceed 100psi shall not exceed 24” (arm over) and 36” (straight) in unsupported length for 1" pipe.


221300 Roof Accessories 02 Plumbing Vent - QN

Make sure that the pipes which penetrate the roof have the proper height above the finish roof level and always review when we do roof replacements.


230000 Head Wall 01 - QN

When preparing for a prefabricated head of wall, there are a few items that should be discussed prior to the fabrication and installation.


260000 Electrical 01 - QN

When installing conduits on the metal deck prior to a slab pour or conduits/electrical boxes directly under a roof deck, certain precautions are needed to be discussed.


033000 Concrete MEP Trench 01 - QN

When we are trenching existing or new concrete for MEP under slab installations, we need to follow certain demo and installation requirements to maintain the existing vapor retarder or install a new vapor retarder. Please review the attached and forward it to the MEP trades.


230000 HVAC Roof 01 Sealing Curbs – QN

  • Corey S Zussman, AIA
  • Link

HVAC curbs that are being installed on metal deck creates interior pathways for air intrusion and air exfiltration under the metal deck which could create condensation under the roof.


Breaches in HVAC Vapor Barrier

  • Corey S Zussman
  • Link

A vapor barrier could either be a part of the building envelope or pipe wrapping and is a key element to reduce the chance of mold either with-in the wall or under the pipe insulation.