that's my interpretation as well. the project i'm doing is a pre-engineered steel frame building with metal siding which falls squarely in the metal building category no matter how you slice it.IMHO … a metal building has structural steel columns and rafters with sheetmetal skin. A farm style building. A metal framed building could have structural steel columns with brick veneer and asphalt shingles. Or a built-up flat roof.
This is correct. Metal framed = framed walls using metal studs (not wood framed, wood studs).IMHO
Metal Framed = Steel stud construction
Metal Building = metal columns Purlins and Girders
Agree. I've worked with many PEMB projects. Up "north" it's not too unusual to have both. I'm used to seeing a pre-manufactured insulated panel as the exterior skin - providing the continuous rigid insulation. This in addition to the interior insulation.This is correct. Metal framed = framed walls using metal studs (not wood framed, wood studs).
Metal building is short for "pre-engineered metal building" which is a system of rigid steel frames, with horizontal wall girts (purlins at the roof) spanning between the frames, usually 20-25 foot spans, spaced every 3 to 5 feet vertically. Then vertical metal siding on the outside, and sometimes with vinyl-faced fiberglass insulation sandwiched in between the girts/purlins and the outer metal skin.
The cavity vs. continuous insulation has to do with the thermal bridging. With both types of construction, there's thermal bridging happening at each vertical metal stud, or at each horizontal metal girt/purlin. The addition of continuous insulation outside the framing helps to reduce or eliminate the thermal briding effect.