The first steel building I ever did I used a Michigan cast iron Z purlin hanger that had a lock bolt like a top beam and it slipped right on the bottom of the purlin, even had the angle of the lip of the purlin cast into it. Worked well but they were $$, only came in 3/8", the rod stays perpendicular to the roof slope. I used sammy express hangers on one too, upper lip of the purlin under the roofing, again only 3/8". They were ok too. I haven't used the swivels but I would guess they go on the upper lip as well? I was told (when we were installing angle for the 1/2" rood hangers) not to drill the vertical of the purlin. These engineered steel buildings are strange animals.
Tom Duross GRS FGOL Besides the Erico and Sammy products, Tolco has a universal swivel the you can install on most rod-type clamps and anchors that allows the load to hang plumb even if the attachment is sloped. Steve Leyton Away from the office - sent from my BlackBerry _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
