Technical Specifications
P. 19
Typical P3 Joist Roof Framing and Construction Details
FIGURE 7
All nails shown in the details below are assumed to be common nails unless otherwise noted� 10d box nails (0�128 x 3”) may be substituted
for 8d common (0�131 x 2-1/2”) as shown in details� Individual components are not shown to scale for clarity�
7a UPPER END, BEARING ON WALL
Attach beveled plate to framing
with 1 - 16d at 16” o�c�
MINIMUM ATTACHMENT For slope 1/4:12, use one 10d
box nail and face nail at each side of bearing� Forslope
> 1/4:12, design joist attachment to beveled plate to
transfer lateral thrust�
Use beveled plate for slopes greater than 1/4:12�
Code-recognized connectors may be substituted�
For slopes greater than 4:12, connectors are required
in order to resist lateral thrust�
Blocking panel, x-bridging, or 23/32” APA Rated Sheathing 48/24 as
continuous closure (Validate use of x-bridging with local building code�)
NOTE Additional connection may be required for wind uplift�
Nail according to
APA recommendations
APA rated OSB sheathing or equal Blocking panels
not shown for clarity
7b, 7c
7p
Figures 7a, 7d, 7e
Figures 7f, 7g
Temporary
construction
bracing
See Details
7h, 7j, 7k, 7m, 7n, 7q,
7r, 7s, 7t, 7u, 7v
8d nails at 6” o�c� – minimum
8dnails per blocking panel
(Whenused for lateral shear
transfer, match nail type and
sheathing edge nailing� Use
”boundary nailing” for engineered
diaphragm applications�
Use at minimum 8dnails�)
Bearing stiffener is required when
end reaction exceeds 1550 lbs�