2018 international residential code.
Irc roof framing codes.
The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures.
On the upcodes website.
Irc or ibc focus on weather protection structural performance roofing materials and installation.
Section r806 roof ventilation.
It brings together all building plumbing mechanical fuel gas energy and electrical provisions for one and two family residences.
This is the main roofing chapter of the code.
2018 irc chapter 3 2020 colorado code consulting llc 2 r301 1 application buildings and structures and all parts thereof shall be constructed to safely support all loads including dead loads live loads roof loads flood loads snow loads wind loads and seismic loads as prescribed by this code.
Most other roof system requirements in the building codes i e.
Code for residential buildings that creates minimum regulations for one and two family dwellings of three stories or less.
2018 international residential code.
Contains sections covering roof framing roof sheathing and roof ventilation.
Section r902 roof classification r902 1 roofing covering materials roofs shall be covered with materials as set forth in sections r904 and r905.
Section r804 cold formed steel roof framing.
Section r803 roof sheathing.
First referenced in the irc in 2006 collar ties had been required long before that in the southern standard building code and in the high wind provisions of the uniform building code.
Class a b or c roofing shall be installed in areas designated by law as requiring their use or when the edge of the roof is less than 3 feet 914 mm from a lot line.
The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process.
The last roof framing member to discuss is the collar tie also called a collar beam.
See the full code for chapter 9 on the icc website.
Section r807 attic access.
Chapter 8 roof ceiling construction.
Section r802 wood roof framing.
As an example of what you can find in chapter 8 of the 2018 irc see.
1 1 1 type of construction the building code designates the type of construction based on size and occupancy i e assembly residential multi family business and establishes minimum fire resistance classification of a roof assembly.
The framing details required in section r802 apply to roofs having a minimum slope of three units vertical in 12 units horizontal 25 percent slope or greater.
Roof ceilings shall be designed and constructed in accordance with the provisions of this chapter and figures r606 11 1 r606 11 2 and r606 11 3 or in accordance with awc nds.
Chapter 9 roof assemblies.
