QA and Best Practice Manual Protocol
XXII. MEPF Penetrations & Firestopping
It is preferred to have one contractor be responsible for all fire safing of required penetrations. This creates a single source and aids in coordination and control of the work preformed. And they are required to produce a General Certificate Of Conformance/Fire Penetration Affidavit. Costs involved, need to confirm with estimating. All penetrations should be carefully detailed to prevent water from entering the structure. All exterior pipe/conduit penetrations need to be stucco and caulked prior to installation of fixture. Fixtures need to be caulked to stucco wall.
CPVC pipe shall not be degraded by incompatible chemicals in fire caulk or antimicrobial coating in steel components.
Acoustical sealant installed in a fire rated assembly must be fire rated.
Identify packing material to be used at pipe penetrations. Provide UL Listing.
Outlets for CATV, phone and electrical shall have 1/4-inch acoustic sealant around the box to the drywall per NEC 410.65.
Outlets in dwelling unit separation walls shall have acoustical pads completely surrounding the box and wire holes.
Provide details of wall assemblies that clearly indicate proper construction for wet areas at rated walls.
Framing dimensions accommodate the required fire-rated gypsum board and clearances to the fixture.
Rated gypsum board is installed fully behind the tub/shower with no gaps or breaks in the gypsum board.
Provide a detail indicating that the washer box installed in a separation wall shall be boxed out with 5/8-inch type X gypsum board beforehand. Washer boxes are not rated for use in fire assemblies, and such penetrations are required to be protected.
Verify that the location of fire-rated walls matches the location of smoke dampers on the mechanical drawings.
All combustible materials exposed within the plenum space shall comply with UMC Section 602.2.
Materials shall have a mold, humidity, and erosion resistant face that meet the requirement of UL 181.
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