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id:
aliases: []
tags:
- destiny/permanent
- type/encyclopedia
- status/incomplete
- authorship/original
- destiny/permanent
- status/incomplete
- topic/construction
- type/encyclopedia
title: IBC Construction Types
---
# IBC Construction Types
@@ -30,14 +30,15 @@ though "5-over-1" denotes the general practice.
Building elements are noncombustible[^1]
[^1]: Defined as passing the test procedures
for defining combustibility of elementary materials
set forth in ASTM E 136
for defining combustibility of elementary materials
set forth in ASTM E 136
* Concrete, masonry, noncombustible steel
### Type I-A: Protected Fire-Resistive Non-Combustible
Common of [[pdi-building-types#High Rise]] and Group I occupancies.
Common of [[pdi-building-types#High Rise|high rise]]
and [[ibc-occupancy-classifications#Group I Institutional|Group I]] occupancies.
* 3hr Exterior Walls
* 3hr Structural Frame
@@ -46,7 +47,8 @@ Common of [[pdi-building-types#High Rise]] and Group I occupancies.
### Type I-B: Unprotected Fire-Resistive Non-Combustible
Common of mid-rise office & Group R buildings.
Common of [[pdi-building-types#Mid Rise|mid rise]] office
and [[ibc-occupancy-classifications#Group R Residential|Group R]] occupancies.
* 2hr Exterior Walls
* 2hr Structural Frame
@@ -55,14 +57,14 @@ Common of mid-rise office & Group R buildings.
## Type II: Non-Combustible
Same materials as [[#Type I Fire-Resistive Non-Combustible]],
Same materials as [[#Type I Fire-Resistive Non-Combustible|Type I]],
with reduced fire-resistance requirements.
Common of [[pdi-building-types#Mid Rise]] buildings.
Common of [[pdi-building-types#Mid Rise|mid rise]] buildings.
### Type II-A: Protected Non-Combustible
Common of [[pdi-building-types#High Density]],
Common of [[pdi-building-types#High Density|high density]],
including dormitory buildings.
* 1hr Exterior Walls
@@ -71,7 +73,7 @@ including dormitory buildings.
### Type II-B: Unprotected Non-Combustible
Common of [[pdi-building-types#Commercial]].
Common of [[pdi-building-types#Commercial|commercial]].
## Type III: Combustible
@@ -82,7 +84,7 @@ Interior building elements may be combustible.
### Type III-A: Protected Combustible
Common of [[pdi-building-types#High Density]].
Common of [[pdi-building-types#High Density|high density]].
* 2hr Exterior Walls
* 1hr Structural Frame
@@ -111,7 +113,7 @@ without concealed spaces.
Construction materials are of any allowed by code,
combustible or noncombustible.
Common of garden or above podiums
Common of [[pdi-building-types#Garden Style|garden style]] or above podiums
### Type V-A: Protected Wood Frame