Bumperite Waterguards, LLC. is requesting testing on the #12 gage push-pull scaffold wire tie assembly also known as guy tying. It is our understanding that there are no formal testing guidelines, details, sketches, ICBO#, ICC#, ASTM, or written approvals supporting its use on commercial construction, other than OSHA guidelines, building codes, or claimed use by industry standards.

Due to the lack of data or information we are unaware of, we would like to test its real peak load capacity when the wire tie is attached to the concrete slab edge of a building and tied back to the leg of the scaffold. This is typically achieved by the use of a concrete eye pin or a hanger wire clip with a concrete pin shot to the concrete or a tie wire anchor bolt. Though it is possible to find the ASTM # and tensile strength of a #12 gage wire, an ICBO# or ICC# on a fastener, and the grade of steel used to manufacture the scaffold frames, when put all together as an assembly and tested, we believe a weak link exists where the wire passes through the metal clip or eye pin of the concrete fastener and is crimped under tension creating a false sense of security to the user.

Please test the assembly under tension to failure (peak load) three times in order to establish the true capacity of the tie.

Thank you,

Logan Archer - Member
Bumperite Waterguards LLC.