Steel Building Constructionin Martinsburg, WV

Questions we get before a steel building goes up

• What drives the cost of a steel building?

  Six things, in roughly this order. Footprint and clear span width, because an open floor with no interior columns drives the frame weight. Eave height. The engineered snow and wind loads for your specific site, which the manufacturer designs to and which is not a place to shave. Site work and foundation, which is the number that surprises most owners, since concrete and grading routinely rival the steel package. Insulation and vapor control. Then framed openings and the roof system you choose. We price it as a real scope with all six named rather than a per square foot number over the phone, because that number is always wrong by the time it is a building.

• How long does it take from signing to a standing building?

  The honest answer is that the longest stretch is not ours. After the layout is finalized, the manufacturer produces stamped engineering and permit drawings, those go through plan review, and only then does fabrication start. That fabrication lead time is set by the mill and the manufacturer’s backlog, it moves with the market, and no contractor who quotes you a firm week count before an order is placed is being straight with you. We can pour foundation while steel is in fabrication, which is where the schedule is actually won. Erection itself is the fastest part of the whole job.

• Do I need a permit for a shop building in Berkeley County?

  Yes, and a new building goes through real plan review rather than a counter permit. The county has been on the 2018 IBC since August 1, 2022, and the commercial permit is priced on the whole footprint rather than just a roof area, so it is a real budget line on a shop building. Outside city limits the permit comes from Berkeley County Building Permits and Inspections. Inside the City of Martinsburg it comes from the city’s Planning, Zoning and Building office. We confirm which office owns your parcel and pull the current fee for your square footage before anyone orders steel, because work started without a permit carries an investigation fee on top.

• Standing seam or screw down for the roof?

  Run length and whether the building is heated. Steel moves about three quarters of an inch per 100 lineal feet across a 100 degree swing, and a screw down roof is pinned through the panel at every purlin so it cannot absorb that. On a long run it wears its own fastener holes oval and starts weeping. Screw down is a good, cost effective roof on a shorter unconditioned building or a barn, as long as you know the fastener washers are a maintenance cycle. Standing seam floats on clips with one fixed point per panel, handles long runs, and is what we recommend on any conditioned building.

• Why does the inside of a metal building drip in the winter?

  That is condensation, not a leak, and the tell is that it happens on cold days when it is not raining and the water is clean. Bare metal puts a cold surface against your inside air, and January here averages 32.4 degrees. Warm humid air off a heater, a truck, or welding hits the underside of the panel and gives up its moisture. The cure is a continuous vapor retarder facing on the warm side with taped laps, sealed at the base angle and every opening, plus thermal blocks or a banded liner so the insulation is not crushed flat at every purlin. It is designed in at the start, and it is expensive to add after the building is closed in.

• Can you re-roof or repair the metal building I already have?

  Yes, and that is a different scope from this page. Depending on what we find it is a re-screw with oversized fasteners and new washers, a retrofit sub purlin system that goes over the existing ribs without a tear off, or a full panel replacement. We walk it, pull fasteners, check the laps and curbs, look for wet insulation in the cavity, and show you the findings before quoting. Details are on our commercial metal roofing page.