Corrugated ties are often used in residential construction. I have seen some cases where the corrugated ties are bent in an L-shape and the nails are put at the very top of the corrugated tie. Also, corrugated ties are sometimes nailed into the plywood sheathing rather than into the studs. Will ties installed in this manner be effective?
Corrugated ties that are bent in an L-shape and nailed at the very top of the tie will have virtually no strength in tension. If the vertical leg is not tight against the sheathing, there may also be very little strength in transferring inward loads. The nails should always be placed as close to the bend in the tie as possible. As the wall moves out under suction wind loads, the tie will bend at the nail attachment. The greater the distance between the fastener and the horizontal portion within the wall, the greater will be this bending force on the tie. The Brick Industry Association recommends in BIA Technical Note 28 that corrugated wall ties for residential wood-frame construction be 20-gauge or heavier and that they be attached with 8d nails at a distance no greater than 5/8 inch from the bend in the tie. The nails should be attached to the wood studs. If the tie is nailed merely into plywood sheathing, it will have very little strength in resisting outward loads. The nails can pull out of the plywood, and the plywood can deflect between the studs.