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Services / Fire Rated Drywall Assembly

Fire Rated Drywall Assembly in Stamford, CT

Stamford Elite Drywall builds fire-rated wall, shaft wall, and ceiling assemblies to their exact UL listing, board type, layer count, and stud spacing built and documented to pass inspection.

We build every rated assembly to its specific UL number, not an approximation, and coordinate ICRA containment on occupied healthcare renovations at facilities like Stamford Health.

Signs you need this

  • • A healthcare or institutional renovation requires a specific UL-listed fire-rated assembly called out on the drawings, and it has to be built exactly to that listing to pass inspection
  • • A downtown Stamford office or mixed-use high-rise needs shaft wall enclosures around elevator shafts, stairwells, and mechanical chases built to a fire-resistance rating
  • • A general contractor's fire-stopping and rated partition inspection is coming up and the assembly needs to be documented as built to the listed detail
  • • A Harbor Point tower or multi-family building needs corridor and demising walls built to the fire rating required by its occupancy classification

Building to the listing, not just to code intent, is what passes inspection

A fire-rated drywall assembly isn’t a general specification that a crew interprets, it’s a specific tested and listed detail, published by UL, that dictates exact board type, number of layers, stud gauge and spacing, and fastener pattern. A one-hour rated partition built with the wrong board thickness or an extra half-inch of stud spacing isn’t a minor variance, it’s a different assembly that was never tested and doesn’t carry the rating the drawings call for. Stamford Elite Drywall treats the UL number on a set of drawings as a build instruction, not a target to approximate, because a building or fire inspector checking a rated wall is checking it against that specific listing, and a mismatch means opening the wall back up.

This matters most in downtown Stamford’s high-rise office and mixed-use towers, where shaft wall enclosures around elevator shafts, stairwells, and mechanical chases carry some of the most safety-critical ratings in the building. Shaft wall construction is built from one side only, since the shaft interior isn’t accessible once it’s enclosed, using a liner panel system rated for the shaft side paired with a specified face layer on the occupied side. Getting that detail wrong isn’t caught until an inspection or, worse, an actual fire event, which is exactly why the framing and board installation are executed to the tested detail from the first stud placed.

Healthcare and institutional work adds a layer beyond the wall itself

Renovation work at facilities like Stamford Health, UConn Stamford, and Sacred Heart Stamford brings a second set of requirements on top of the fire rating: Infection Control Risk Assessment containment. Hospitals and medical facilities routinely renovate one wing or unit while continuing to operate the rest of the building, and ICRA protocols exist specifically to keep construction dust and airborne contaminants from reaching patient care areas during that work. That means sealed containment barriers, controlled air pressure differentials in some cases, and a construction sequence that accounts for infection control alongside the physical fire-rated assembly being built. Stamford Elite Drywall coordinates ICRA requirements with the facility’s infection control team before work begins, since these protocols aren’t optional add-ons on an occupied healthcare project, they’re a condition of being allowed to work in the building at all.

The common thread across a downtown Stamford office tower’s shaft walls, a Harbor Point building’s corridor rated ceilings, and a Stamford Health renovation’s ICRA-contained partition is the same discipline: build exactly to the listed assembly, seal every penetration to its own tested detail, and document the work so it survives inspection without a callback. General contractors bidding this kind of work need a drywall subcontractor who treats the UL listing as non-negotiable, because on a commercial or institutional project, a fire-rated assembly that fails inspection doesn’t just cost the price of redoing the wall, it costs the schedule days that a hospital, a fully leased office tower, or a phased residential building can’t easily absorb.

Materials & standards

Products & materials we use

  • USG
  • National Gypsum Gold Bond
  • Georgia-Pacific DensGlass

Standards & codes we work to

  • UL fire-rated assemblies
  • 2022 Connecticut State Building Code (2021 IBC/IRC)
  • ASTM C1396/C840
  • GA-216
  • ICRA

What the terms mean

  • shaft wall
  • rated partition
  • fire-stopping
  • Type X
  • Type C
  • liner panel
  • demising wall

Options & variants

Option When it applies Cost
Rated partition / demising wall Standard fire-resistance-rated wall between occupancies or tenant spaces —
Shaft wall assembly Elevator shafts, stairwells, and mechanical chases requiring a fire-rated enclosure —
Healthcare / ICRA-compliant assembly Hospital or medical facility renovation requiring infection control containment alongside the rated wall —
Corridor rated ceiling Corridor or egress path requiring a rated ceiling assembly in addition to the walls —

What affects cost

  • • The specific UL assembly number specified on the drawings, which dictates board type, layer count, stud gauge, and spacing exactly
  • • Whether the project is occupied during construction, requiring ICRA containment or other infection-control protocols in a healthcare setting
  • • Penetrations for MEP systems through the rated assembly, each requiring a listed fire-stopping detail
  • • Shaft wall height and the specific liner panel and face layer system required for the assembly's listing
  • • Inspection and documentation requirements tied to the occupancy classification of the building

What to expect

  1. 1

    Drawing review

    We confirm the specified UL assembly number, board type, layer count, and stud specification with the general contractor or architect.

  2. 2

    ICRA coordination

    For healthcare or occupied-facility work, ICRA containment requirements are coordinated before any work begins.

  3. 3

    Framing and board installation

    The assembly's specified stud gauge and spacing gets framed, followed by the exact board layers and type the listing calls for.

  4. 4

    Fire-stopping

    Every penetration is fire-stopped to its own listed detail, since an unsealed or improperly sealed penetration compromises the entire assembly's rating.

  5. 5

    Documentation and walkthrough

    We document the work and walk it through with the general contractor ahead of the fire marshal or building inspector's review.

When this isn’t the right call

  • If the wall is a standard, non-rated interior partition, commercial steel stud framing is the better fit without the added rated-assembly requirements.
  • If the project is a residential garage-to-house fire separation rather than a commercial or institutional rated assembly, that falls under this site's residential garage fire separation service, not this commercial scope.
  • If the scope is limited to framing without the rated board installation, that should be coordinated as commercial steel stud framing first, then this service for the rated board layer.

Frequently asked questions

Do you build to a specific UL assembly number, or a general fire-rating standard? +

To the specific UL-listed assembly number called out on the drawings. Fire-rated construction is only compliant when it matches its listing exactly, board type, layer count, stud spacing, and fire-stopping detail, so that's the standard the work is built and inspected against.

What is ICRA containment and when is it required? +

Infection Control Risk Assessment containment is a set of construction protocols used in healthcare settings, like renovation work at a hospital, to prevent dust and airborne contaminants from reaching patient care areas during construction. It's specified based on the facility's risk assessment for the location and scope of work.

What's a shaft wall and how is it different from a standard rated partition? +

A shaft wall is a fire-rated assembly built around a vertical opening like an elevator shaft or stairwell, typically using a liner panel system on the shaft side and a face layer on the occupied side, installed from one side only since the shaft interior isn't accessible for finishing later.

How do you handle penetrations through a rated wall, like conduit or ductwork? +

Each penetration through a rated assembly needs its own listed fire-stopping detail specific to what's passing through and the assembly's rating. This is coordinated with the MEP trades so penetrations are sealed correctly as they're made, not patched after the fact.

Can you work in an occupied healthcare facility during construction? +

Yes, healthcare renovation work at facilities like Stamford Health is executed under ICRA containment protocols specifically because parts of the facility remain occupied and operating during construction.

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