Tag Archives: Ceiling loads

Alternative Siding, Building on Slab, and Ceiling Liner Loading

Today’s Pole Barn Guru answers questions about alternative siding and roofing, whether one can build on an existing slab, and if a ceiling liner can hold insulation.

DEAR POLE BARN GURU: Can you build me a steel wall inside and vinyl siding on the outside with asphalt shingles? PAUL in BLUE GRASS

DEAR PAUL: A beauty of post-frame construction is we can design for virtually any combination of roofing and siding materials you may desire. While I am not a huge fan of steel liner panels, yes – your building can have them along with your vinyl siding. Steel liner panels end up posing challenges with trying to attach things to them, like work benches, cabinets, shelves, etc. Gypsum wallboard (sheet rock) is generally far more affordable as well as easier to make attachments to. And, if 5/8” Type X is used, affords some fire protection.

 

DEAR POLE BARN GURU: Can Hansen build the barn on top of an existing slab? CLYDE in BELLVILLE

DEAR CLYDE: Yes, we can design a complete post frame building kit package to be attached to your existing concrete slab. https://www.hansenpolebuildings.com/2014/12/dry-set-column-anchors/

 

DEAR POLE BARN GURU: My trusses are 8 feet on center will the metal ceiling liner span that 8 feet without sagging if I blow in fiberglass insulation? RODNEY in LAKE ELMO

DEAR RODNEY: No, steel liner panels will sag across an eight foot span. If your building’s roof trusses are not designed to support weight of a ceiling load, then they will sag as well – and, in combination with a snow load, may fail.

 

 

 

Properly Treated Poles, Ceiling Loads, and Uplift Plates

Properly Treated Poles, Ceiling Loads, and Uplift Plates

DEAR POLE BARN GURU: My pole barn is approximately 25 years old. My question is, does the foundation need to be treated for maintenance to prevent rotting? The wood that is underground was originally treated wood but how long does that last? The floor inside is concrete but there is no concrete around the framing which meets dirt on the outside. NORMA in CASSOPOLIS

DEAR NORMA: Despite what might be voiced by naysayers – properly pressure preservative treated lumber should, under most circumstances, last longer than you and I (or our grandchildren) will be around to see. If you are curious, excavate the top eight to 12 inches of soil around one or more of the columns and check on the condition of them. We are currently adding onto our warehouse – a 40 year old post frame building. Some of the existing columns were dug alongside and it was determined there had been no noticeable decay at all. I would suspect yours will be the same.

 

DEAR POLE BARN GURU: Can you strap a ceiling for drywall ceiling in a pole barn if the joists are 8 ft apart? TOM in BLAIR

DEAR TOM: I will do what I feel is some interpreting….where “joists” are the prefabricated metal connector plated wood roof trusses, and “strap” would refer to framing placed across (or more probably between) the bottom chords of the trusses.

If your trusses have been designed to support the weight of a ceiling load, then yes. Hansen Pole Buildings uses a 10 psf (pounds per square foot) design ceiling load for instances where gypsum wallboard will be applied. A five psf load might possibly be adequate with bare minimal framing and nothing ancillary hanging from the bottoms of the trusses. You would be well advised to consult with the engineer who designed your building, or the truss fabricator to insure your roof system is indeed adequate to support these loads.

Once truss adequacy is confirmed your engineer can specify the size, species and grade of the material to be used as ceiling joists as well as what he or she requires as a connection between the ceiling joists and the trusses.

DEAR POLE BARN GURU: What is used to hold the post in the concrete? galv nails pounded into the 6×6 treated post post? Rebar drilled through the post as a big nail? Galv-steel anti-lift brackets of some sort? GLENN in PORTLAND

DEAR GLENN: Hansen Pole Buildings now supplies (as a standard feature) one or more UP-Lift plates per each structural column (the required number will depend upon analysis by the Engineer of Record). It would require a significant number of large diameter nails to equal the holding power of a single UP-Lift plate.  Rebar through the column might prove to be adequate, however it does involve a significant amount of effort to drill the holes through the column, cut rebar to short lengths and seal the rebar at the edges of the column to prevent water infiltration. In any case, the ultimate responsibility for design of adequate uplift resistance should be left up to the engineer who designs your building.

For more information on UP-Lift plates read here: https://www.hansenpolebuildings.com/2014/05/up-lift-plates/