Joey Eaton
Industrial
- Jul 13, 2017
- 1
As the "owner's rep" for a construction project, I'm in a small dispute with the PEMB folks. The PEMB shop drawings called out 22 ga, 33 ksi yield steel decking. The submittals were approved and the decking has been delivered to the site and is marked as such (22 ga, 33 ksi). The roof system submittal was then made and was rejected by our insurance company because that particular roof system required either a) a tighter purlin spacing or b) a 80 ksi steel deck.
The roofing contractor and PEMB contractor were promptly informed of this issue. After a few days of inaction, the PEMB folks come back and said that the decking actually meets the 80 ksi requirement and they provide coil certs from the mill "proving" as much. Two things seem fishy to me:
1) There are no numbers from the certs (lot numbers, heat numbers, order numbers, job numbers, etc.) that match the labels for the decking we actually have on site.
2) the certs reference ASTM A1008 SS Grade 80 which would seem to indicate that the coils were originally processed as grade 80 but then found their way into decking that was labeled as grade 33.
Am I being paranoid or is there a reasonable explanation? For example, for the sake of common grades/alloys/processes, would the mill run grade 80 steel to fulfill orders for which a lower grade was required?
Any help would be appreciated.
The roofing contractor and PEMB contractor were promptly informed of this issue. After a few days of inaction, the PEMB folks come back and said that the decking actually meets the 80 ksi requirement and they provide coil certs from the mill "proving" as much. Two things seem fishy to me:
1) There are no numbers from the certs (lot numbers, heat numbers, order numbers, job numbers, etc.) that match the labels for the decking we actually have on site.
2) the certs reference ASTM A1008 SS Grade 80 which would seem to indicate that the coils were originally processed as grade 80 but then found their way into decking that was labeled as grade 33.
Am I being paranoid or is there a reasonable explanation? For example, for the sake of common grades/alloys/processes, would the mill run grade 80 steel to fulfill orders for which a lower grade was required?
Any help would be appreciated.
