NFPA 285 and building height

[enclosure]

Hello,
I am looking at the 2015 IBC and the building height requirements that govern conformance with NFPA 285 are not clear. Chapter 14 says buildings "over 40 feet" shall comply. Chapter 26 says "construction of any height" shall comply.

I have a building under 40 feet with spray foam in the exterior wall assembly and need to find out if NPFA 285 applies.


Any help would be appreciated!! Thank you

 

[cda]

Welcome

Are you designing to just IBC?


Or NFPA 101 also

 

[cda]

If you look at chapter 35, it shows which sections 285 applies to


12

Standard Fire Test Method for the Evaluation of Fire Propagation Characteristics of Exterior Nonload-bearing Wall Assemblies Containing Combustible Components

718.2.6 1403.5
1407.10.4
1409.10.4
1510.6.2
2603.5.5

 

[enclosure]

designing to IBC requirements. Some buildings fully sprinklered some are not.

 

[enclosure]

If you look at chapter 35, it shows which sections 285 applies to


12

Standard Fire Test Method for the Evaluation of Fire Propagation Characteristics of Exterior Nonload-bearing Wall Assemblies Containing Combustible Components

718.2.6 1403.5
1407.10.4
1409.10.4
1510.6.2
2603.5.5

Thanks for the information, but still does address at what height building is NFPA applicable to. All buildings or only over 40'?

 

[cda]

Will let the experts answer,,

One answer

1403.5 Vertical and lateral flame propagation.
Exterior walls on buildings of Type I, II, III or IV construction that are greater than 40 feet (12 192 mm) in height above grade plane and contain a combustible water-resistive barrier shall be tested in accordance with and comply with the acceptance criteria of NFPA 285. For the purposes of this section, fenestration products and flashing of fenestration products shall not be considered part of the water-resistive barrier.

Exceptions:

1. 1.Walls in which the water-resistive barrier is the only combustible component and the exterior wall has a wall covering of brick, concrete, stone, terra cotta, stucco or steel with minimum thicknesses in accordance with Table 1405.2.
   
   
2. 2.Walls in which the water-resistive barrier is the only combustible component and the water-resistive barrier has a peak heat release rate of less than 150 kW/m2, a total heat release of less than 20 MJ/m2 and an effective heat of combustion of less than 18 MJ/kg as determined in accordance with ASTM E1354 and has a flame spread index of 25 or less and a smoke-developed index of 450 or less as determined in accordance with ASTM E84 or UL 723. The ASTM E1354 test shall be conducted on specimens at the thickness intended for use, in the horizontal orientation and at an incident radiant heat flux of 50 kW/m2.
   

 

[cda]

Maybe any building,,, depending on ht. Or construction type::


1409.10 Type I, II, III and IV construction.
Where installed on buildings of Type I, II, III and IV construction, HPL systems shall comply with Sections 1409.10.1 through 1409.10.4, or Section 1409.11.



2603.1 General.
The provisions of this section shall govern the requirements and uses of foam plastic insulation in buildings and structures.