Originally Posted by
James Duffin
I looked for the code reference for the tie downs and could not find it. What section are you looking at? Thanks!
From the IRC. (bold is mine)
- R802.11 Roof tie-down.
- - R802.11.1 Uplift resistance.
Roof assemblies which are subject to wind uplift pressures of 20 pounds per square foot (960 Pa) or greater shall have roof rafters or trusses attached to their supporting wall assemblies by connections capable of providing the resistance required in Table R802.11. Wind uplift pressures shall be determined using an effective wind area of 100 square feet (9.3 m2) and Zone 1 in Table R301.2(2), as adjusted for height and exposure per Table R301.2(3).
- - - A continuous load path shall be designed to transmit the uplift forces from the rafter or truss ties to the foundation.
"shall have roof rafters or trusses attached to their supporting wall assemblies by connections"
"shall have" ... not just *some*, but *plural*, as in ... "rafterS or trussES" attached ...