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J. Peter Jordan
Senior Member
Username: jpjordan

Post Number: 1187
Registered: 05-2004
Posted on Tuesday, June 20, 2023 - 06:48 pm:   Edit PostDelete PostPrint Post

I am going to specify a "yellow chain" that is a safety barrier around a dangerous roof area. This is supposed to deter people from being in this area during certain times when dangerous venting is occurring. An example can be found at https://www.barrierwarehouse.com/Chainboss-YELLOW-Plastic-Safety-2-Chain-100ft-box-p/u2351yel.htm

Does anyone have a good idea of where this should be specified?
J. Peter Jordan, FCSI, AIA, CCS, LEED AP, SCIP
Greta Eckhardt
Senior Member
Username: gretaeckhardt

Post Number: 127
Registered: 08-2013


Posted on Tuesday, June 20, 2023 - 07:35 pm:   Edit PostDelete PostPrint Post

I would specify the chain and the posts that support it in a Roof Accessories section in Division 07.
David G. Axt, CDT, CCS, CSI, SCIP
Senior Member
Username: david_axt

Post Number: 2028
Registered: 03-2002


Posted on Wednesday, June 21, 2023 - 01:51 pm:   Edit PostDelete PostPrint Post

Isn't safety the contractor's means and methods?
David G. Axt, CDT, CCS, CSI, SCIP
Specifications Consultant
Axt Consulting LLC
J. Peter Jordan
Senior Member
Username: jpjordan

Post Number: 1188
Registered: 05-2004
Posted on Thursday, June 22, 2023 - 10:25 am:   Edit PostDelete PostPrint Post

This will be a part of the permanent facility.
J. Peter Jordan, FCSI, AIA, CCS, LEED AP, SCIP
ken hercenberg
Senior Member
Username: khercenberg

Post Number: 1572
Registered: 12-2006


Posted on Thursday, June 22, 2023 - 10:38 am:   Edit PostDelete PostPrint Post

I presume that the chain will be partnered with large signs saying "Run away when venting!" or something similar, perhaps paired with alarms and flashing lights. Maybe coat the walking area deemed dangerous with a hatched, safety orange coating.

I can't imagine that anyone will take a plastic yellow chain seriously enough to stay away. It may just be an invitation for people to cross into the danger area.
J. Peter Jordan
Senior Member
Username: jpjordan

Post Number: 1189
Registered: 05-2004
Posted on Friday, June 23, 2023 - 10:35 am:   Edit PostDelete PostPrint Post

Good point, Ken. Since this is a roof area that is not open to the public, I am assuming that a pointed suggestion (yellow chain and sign) will be sufficient.
J. Peter Jordan, FCSI, AIA, CCS, LEED AP, SCIP
ken hercenberg
Senior Member
Username: khercenberg

Post Number: 1573
Registered: 12-2006


Posted on Friday, June 23, 2023 - 11:09 am:   Edit PostDelete PostPrint Post

I was just having fun, visualizing people who touch surfaces that have "Wet Paint" signs on them.

Maybe I was just projecting what I'm afraid I would do if I saw it. One of those "Hey, what's this?" moments.
Loretta Sheridan
Senior Member
Username: leshrdn

Post Number: 96
Registered: 11-2021
Posted on Friday, June 23, 2023 - 11:59 am:   Edit PostDelete PostPrint Post

It seems to me that a plastic yellow chain wouldn't hold up very long.

I know we weren't told what is in the dangerous roof area, but my limited experience, one of the things I had to deal with was an MRI quench vent. I don't recall what we did for that project.

But other roof quench vents I have seen have a railing around the area. Actually, other dangerous roof areas I have seen usually had a railing around the area. Sometimes safety yellow, but not always.

(MRI quench vents that open at ground level usually have fencing round it.)
Steven Bruneel, Retired Architect
Senior Member
Username: redseca2

Post Number: 718
Registered: 12-2006


Posted on Friday, June 23, 2023 - 03:55 pm:   Edit PostDelete PostPrint Post

I am used to specifying safety rails to put around roof hatches that often include a removable chain across the open end where you would access the roof hatch. These are usually yellow. The intent of the roof hatch safety railing is to prevent someone walking into an open roof hatch, specifically fire fighters on a smokey roof. I assume this is just a modular adaption based on the same kit of parts, possibly from the same manufacturer.

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