Wind Mitigation - Roof to Wall Attachment (Single Wraps)

[jshishilla (John Shishilla)]

@Eric_Bradford

Hello InterNACHI Forum members. I would be grateful for your advice and input. I recently replaced my roof and in the process had new truss straps installed so I can get the insurance credit for roof to wall attachment. My roofer provided a free wind mitigation inspection which states that the weakest roof to wall attachment is single wraps.

A couple of weeks later, I submitted my wind mitigation report to my insurance company and was told that “the straps are old ones and were not installed correctly”, so I cannot get the roof to wall attachment credit for single wraps. I am a registered structural engineer, so I am aware that the installation (single tapcon in the bond beam) does not have much capacity. However, I cannot find any reference that defines the required attachment of the strap to the wall. I have attached pictures of the as-built condition along with a screen shot from my wind mitigation report. If any of you can please take a look at the pictures and let me know what is wrong with the straps and where I can find a reference that requires an alternate installation I would by grateful. I would like to show the installation requirements to my roofer and have them fix their work.

Photo Storage

Thank you for your help!
Eric Bradford

Your best answer for attachement will come from the strap manufacture.