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| Keywords: Nortown plastic pipe drywall.jpg Set-up for subsequent code infraction When firestops are done by separate trades instead of a speciality firestop subcontractor who does all firestopping on site mechanical electrical structural and architectural a popular cost-cutting measure is for mechanical and electrical trades to absolve themselves of sealing wall openings particularly in drywall by claiming that they have hung their pipes and wires BEFORE the drywall was up and that therefore the drywaller is responsible The drywaller has no such instructions in his specification and simply butts up to the penetrants and uses common drywall mud to close the gap which is not an approved firestop With plastic piping which melts and burns quickly in a fire this is particularly dangerous When the subtrades don't allow enough money for this pre-tender on the basis of such reasoning a budgetary battle or code infractions or both are not uncommon outcomes own 2007-08-25 Achim Hering Plumbing Cement Firestops Operable firestops Firestop mortar Concrete Plastic objects Building code violations Intumescents 3M Fire Barrier Mortar FS195 | ||||
