In this section, we will take
a broad overview of other
non-structural elements and materials.
2019 CBC - Requirements for Chapters 24
through 33: Nonstructural Components.
Chapter 24 covers glass and glazing
Section 2403.1 requires that each
pane must bear the manufacturer's mark
designating  the type and
thickness of the glass or glazing
material. 
Continue on CBC Chapter 24
It is important to verify glazing
edge clearance requirements per
Section 2403.2.1 and Table
2403.2.1. CBC Section 2407
talks about requirements for
glass in handrails and guards.
There is IR 24-1 to clairfy requirements
for glass panel railings
CBC Section 2407.1.2
states guards with 
structural glass baluster panels shall
be installed with an attached top rail or
handrail. Exception to require top rail
or handrail is such: when these baluster
panels are laminated glass with two or
more glass plies of equal thickness
and the same glass type and the panels
shall be tested per ASTM E2353
ensuring baluster remains in place.
CBC Section 2410
talks about structural sealant
glazing, abbreviated as SSG.
SSG test and inspection shall satisfy
requirements in Section 2410.1.2.
Construction documents shall show
structural details of glass and curtain
wall system per Section 2410.1.4
there are 14 items.
CBC Cgapter 25 covers 
gypsum board and plaster.
There are minor changes to model code.
Balance of CA amendments carried forward.
Referenced standards:
ASTM C841 - Interior lath/furring 
for gypsum plaster. 
ASTM C1063 - Lath/furring
for cement plaster.
ASTM C926 - Cement plaster.
CBC Section 2503 covers lath and 
gypsum board inspection.
CBC Section 2507 covers lathing and 
plastering. CBC Section 2510 covers
lathing and furring for
cement plaster(stucco).
Woven wire self-furring lath often requires
special installation techniques.
For example, furring nails.
Installation method is subject
to a "satisfactory jobsite
demonstration". Must be furred
out 1/4". See DSA IR 25-4
for more information. Penetrations
in building paper must be
thoroughly patched and waterproofed.
We all understand that
plaster/stucco is pervious, 
the building paper is the water barrier.
This photo shows a penetration
through the exterior wall.
The wallpaper has to be taped
around the penetration to prevent
the water entering through the
penetration and causing dry rot to
wall framing. CBC Section 2504
covers requirements for vertical and
horizontal assembly of gypsum board, 
gypsum panel products, or lath and plaster.
Section 2504.2.1
requires nails with annular or
spirally grooved shank, or alternatively
common nails with supplemental
wire ties. CBC Section 2507.3
specifies the DSA amendment for lath
attachment to horizontal wood supports.
In addition to attachment
requirements of ASTM C1063.
No. 9 gauge, ring-shank
'J' nails are required.
This picture shows a
typical saddle tie detail.
Several things to note, 1. Saddle
tie is required for anything
wider than 1/4".
2. Saddle tie has double
loop at support.
3. They alternate back and forth
to prevent twisting.
In ASTM C841 Gypsum Plaster Lath
& Furring. Table 1 specifies lath
attachment. Table 2 specifies
types of lath/support spacing.
Table 3 specifies suspended ceiling
hangers and runners. In ASTM C1063
for installation of cement plaster
lath and furring. Table 2 specifies
hangers and runners. Table 3
specifies lath types and support spacing.
The following two sections with gypsum
board and plaster are not adopted by DSA
structural safety. Section 2505
shear wall construction. Section
2508.6 gypsum board diaphragm ceilings.
CBC Section 2510.6
talks about water resistive
barriers requirements for stucco.
Water resistive barriers shall be
installed as required in Section 1403.2
and where applied over wood-based
sheathing shall include a water
resistive vapor permeable barrier with
a performance at least equivalent to
two layers of water resistive barriers
complying with ASTM E2556, Type 1.
(Some code exceptions allowed.)
See ICC AC38 and industry
recommendations. Exception 2, states where
the water resistive barrier is applied
over wood-base sheathing in 
Climate Zone 1A, 2A, or 3A.
A ventilated air space shall be
provided between the stucco
and the water resistive barrier.
CBC Chapter 26 addresses the
use of plastic in building
constructions and components.
Section 2603.13 specifies
the requirements of cladding attachment
over foam sheathing to wood framing.
Additional requirements for
DSA projects can be found in
section 2603.13.3
Always check construction documents
for anchorage and support details.
