Nail direction for a wood panel shear wall
Nail direction for a wood panel shear wall
(OP)
I can't find the actual requirement (I imagine it is somewhere) but I believe the head of the nail has to be against the sheathing on a shear wall. In other words the nails must be driven from the sheathing side, not the opposite side.
I have a gable end type truss with 2x flat members. The contractor didn't nail the sheathing to the truss sufficiently and the sheathing side has been covered with insulation and other finish material. Before I have them rip it apart to add nails, I was looking at the possibility of using nails or approved screws from the accessible side of the assembly (the unsheathed side of the truss) but I don't think nails/screws from that side get me the same strengths.
Anyone know if I can nail/screw from the opposite side?
I have a gable end type truss with 2x flat members. The contractor didn't nail the sheathing to the truss sufficiently and the sheathing side has been covered with insulation and other finish material. Before I have them rip it apart to add nails, I was looking at the possibility of using nails or approved screws from the accessible side of the assembly (the unsheathed side of the truss) but I don't think nails/screws from that side get me the same strengths.
Anyone know if I can nail/screw from the opposite side?






RE: Nail direction for a wood panel shear wall
Per NDS SDPWS 4.3.6.3 "Fasteners: Sheathing shall be attached to framing members using nails or other approved fasteners. Nails shall be driven with the head of the nail flush with the surface of the sheathing"
Additionally, per NDS Table 4.3A you need to have a minimum of 1 1/4" - 1 1/2" penetration into your framing member. Your sheathing would not be thick enough to meet these penetration requirements.
RE: Nail direction for a wood panel shear wall
RE: Nail direction for a wood panel shear wall
RE: Nail direction for a wood panel shear wall
Per NDS SDPWS 4.3.6.3.1 "Adhesives: Adhesive attachment of shear wall sheathing shall not be used alone, or in combination with mechanical fasteners" Exception: Approved adhesive attachment systems shall be permitted for wind and seismic design in SDC A, B, and C where R = 1.5 and omega = 2.5, unless other values are approved"
RE: Nail direction for a wood panel shear wall
Mike McCann
MMC Engineering
RE: Nail direction for a wood panel shear wall
RE: Nail direction for a wood panel shear wall
And trying to install wood screws from the inside would require them to either be screwed as toe screws (in which case how do you control and confirm the depth of penetration into the sheathing).
I guess you could theoretically use galvanized connectors but who's going to go and install them every 6" on-centre and then you still only are able to use screws that are smaller than 3/4"(or less depending on sheathing thickness). Seems sketchy.
Guess the contractor should've nailed it right in the first place. RTFD