Hops Warehouse Line Hanging

[Dormer1975]

I'm currently working on a hops warehouse (0.30 gpm/ft^2 and 2600 ft^2) and actually will be doing 3 more in the next few months. My question involves the hanging method for the line piping. The current hops warehouse is existing construction and has insulation panels (celotox or other brand) up to 2 layers thick (roughly 3" thick) under z-purlins. Customarily, in new construction we hang lines to the vertical component of the z-purlin with steel super sammy screws (SWDR) in the horizontal configuration. However, without removing the panels for every hanger, that isn't viable here. It should be noted that we do pull down panels to install eye rods for trapeze hangers as the main piping is 6".

In the past, we've hung lines with ceiling flanges and ran 2 tek screws through the insulation into the bottom member of the z-purlins. I've considered vertical steel sammys, but due to the thickness of the insulation it requires pre-drilling and filling with insulation foam. Additionally, the gauge of the bottom member of the z-purlin has to be thick enough to use DST sammy screws, otherwise it requires one of their newer sammy expresses, which work great but are significantly more expensive.

I'm leaning towards ceiling flanges as it's been done in the past, but I'd appreciate any other suggestions.

 

[TravisMack]

Be sure to check with the metal building supplier to determine if the bottom of the Z purlin can handle that loading? You may find that the purlin is not capable of such loading. I had a warehouse in PA that we had similar issues with hanging. If I recall correctly, we ended up using Sammy Express anchors installed no more than 3/4" from the vertical web member of the Z purlin. The metal building supplier would not sign off on the roof if we used ceiling flanges or wide mouth beam clamps on the bottom flange.

Travis Mack
MFP Design, LLC

 

[fireguy519345]

Please hurry with the construction of this hop barn. Have you noticed the price of hops? There is a world shortage of hops, so it is of the utmost importance that you do your part in stabilyzing the price and availability of hops.