Structural and Civil Engineering Curriculum

Fireproofing

Module from the Structural and Civil Engineering Curriculum curriculum.

Module 9 - Fireproofing · Learning Objectives · 1. Identify fireproofing envelope per PIP STF05121 (Cat 1, 2, 3) · 2. Apply 2-hr UL rating for supports of vessels, elevated piping · 3. Select fireproofing method: concrete, cementitious, intumescent, enclosure · 4. Specify 3 in typical cementitious thickness for 2-hr rating · 5. Monitor coating for damage and spalling during turnaround inspection · Fireproofing Category and Extent (PIP STF05121)

Category	Extent	Duration	Typical Use	Notes	Ref
Cat 1 (Most stringent)	All supports, skirts, legs	2 hr	Within 40 ft of pool fire risk	Primary	UL 1709
Cat 2	Elevated piping supports	1.5 hr	Secondary areas	Moderate	PIP STF
Cat 3	Limited supports	1 hr	Remote, low risk	Low	PIP STF
None	Open areas	-	>80 ft from hazard	Safe	-
Fireproofing Material Comparison
Material	Thickness (in)	Durability	Cost/SF	Pros	Cons
Cementitious spray	1.5-3 in	10-20 yr	$3-8	Field applied	Cracking, weight
Intumescent coating	0.06-0.25	15+ yr	$15-30	Thin, aesthetic	UV degradation
Concrete encasement	2-4 in	50+ yr	$5-15	Durable	Heavy, costly
Insulation blanket	2-3 in	10-15 yr	$8-15	Removable	Maintenance
Chartek (epoxy)	0.25-0.5	20+ yr	$20-40	Excellent	Very expensive

Source: Structural_Civil_Engineering_Curriculum_v1.xlsx · Sheet: Fireproofing

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