Attic Framing

Attic Framing

Section R802 contains several different tables that cover rafter spans and loads.

Section  R804 Covers cold rolled metal framing.

Code Reference                Description

R802.4

Allowable Ceiling Joist spans

Table

R802.5

Allowable rafter spans

Table

R802.5.1

Purlins

R802.6

Bearing requirements

R802.6.1

Finished ceiling material

R802.7

Cutting drilling and notching

R802.7.2

Engineered wood products

R802.8

Lateral support

R802.8.1

Bridging

R802.9

Framing of openings

R802.11.1.2

Rafter uplift resistance

R802.10  Covers general requirements of trusses.

R802.11.1                    Truss uplift resistance

Roof Sheathing

R803.1

Lumber sheathing

R803.2

Wood structural panel sheathing

R803.2.1

Identification and grade

R803.2.1.1

Exposure durability

R803.2.1.2

Fire-retardant treated plywood

R803.2.2

Allowable spans

R803.2.3.1

Sheathing fasteners

Attic Entry requirements

R807.1

Attic access

M1305.1.2

Access must allow for removal of hvac equipment