Kemko has been in business continuously for over forty-five years. A high percentage of our employees have worked here for over 20 years. Our building components are made from the highest quality first-run steel. We never use “seconds” in our buildings. Our software is state-of-the-art and is updated continuously to reflect the latest changes in building codes. Kemko buildings are fabricated in our 40,000 square foot manufacturing facility located in Daphne, Alabama. All of Kemko’s buildings are custom designed for each customer’s intended purpose. We do not treat metal buildings as generic commodities. In the overwhelming majority of the cases, a buyer is not going to get what he or she wants or needs by simply selecting a building from a list of pre-priced kits. Kemko’s experienced sales staff works with each customer to make sure the finished building will meet the customer’s requirements Even when exactly the same information is given to different metal building suppliers, there are almost always some differences in the actual building being quoted. These differences can materially affect the price. A buyer should check a number of items when a building is quoted.

  • Building Code and Edition – Building codes in Kemko’s local
    market area include several editions of the International Building
    Code and the latest edition of the Florida Building Code. It is
    important to know that your building complies in all respects with
    the ever increasing complexity of the building code requirements.
  • Wind Speed – Kemko is able to design your building to exact wind
    loads, even down to 1 mph increments as required by one jurisdiction.
  • Open/Enclosed/Partially Enclosed Building – Current codes
    require that each building be classified as one of these three types.
    A partially enclosed building, because of a “windsock” effect, must
    necessarily be built heavier to withstand the design wind loads
    than enclosed or open buildings.
  • Exposure Categories – Each building must be assigned an
    exposure classification depending upon the terrain surrounding
    the building. Exposure “B” calls for numerous closely spaced
    structures or trees around the building. Exposure “C” contemplates
    that the terrain is flat and open. Because an Exposure “C” building
    has greater exposure to the wind, it must incorporate more steel
    than an Exposure “B” building.
  • Occupancy Categories – The building codes require that each
    building be assigned a wind load importance factor based on the
    intended use of the building. Buildings that represent a substantial
    hazard to human and buildings that will be used as fire, rescue
    and police stations must be assigned higher load factors than
    agricultural or general-use residential and commercial buildings.
  • Dead, Live, Collateral and Variable Loads – These represent the
    weight of the building envelope, construction loads, and other
    loads such as interior lighting fixtures, ceilings, HVAC components,
    facades, cranes, electrical, mechanical and sprinkler systems.
    Your building must be designed for these loads if they are present.
  • Deflection and Drift Limits – This is the allowed movement of the
    building components in high loading conditions. A building that
    incorporates stucco, masonry, glass walls and other “brittle”
    components must not be allowed to move as much as a building
    that incorporates only metal panels. Reduced allowed movement
    results in higher building costs because of the additional steel that
    is used to stiffen the building structure.
  • Edge Strip Loading – Because the edges of the building envelope
    are subject to greater wind loading than the center areas of the
    walls and roof, current codes require that greater edge strip loading
    be incorporated into the design.
  • Rigid Frames – These frames form the backbone of the building
    and are generally spaced every 20 to 30 feet along the length of
    the building. The columns and rafters can be tapered, constant
    depth or a combination of the two. Tapered members are “built up”
    from steel plates. Constant depth members can be either “built-up”
    members or hot-rolled wide flange shapes. If inside clearances
    or shapes of the columns and rafters are important, then the
    metal building supplier must incorporate this into the quote.
    Tapered members are generally more economical in our local
    market when the building width exceeds 40 feet.
  • Endwall Frames – Among the different types of endwall frames,
    in order of lowest to highest cost, are: (1) cold-formed post-and
    beam, (2) hot-rolled or “built-up” post-and-beam, (3) half-load rigid,
    and (4) full-load (expandable) rigid frames. Kemko has elected
    not to use cold-formed post-and-beam frames because they are
    more susceptible to damage and early failure. The difference in
    cost between the other frames types can be considerable.
  • Purlins – These are medium gauge secondary structural members
    that, among other things, tie the rafters together, serve as mounting
    points for the roof system and transfer roof loads to the rigid frames.
    Generally, Kemko uses “Z” shaped purlins in depths from 8 inches
    up to 12 inches in gauges from 16 up to 12, depending on the
    specific application. Minimum yield strength of the purlins used
    by Kemko is 55,000 psi.
  • Girts – These are medium gauge secondary structural members
    that, among other things, tie the columns together, serve as
    mounting points for the wall system and transfer wall loads
    to the rigid frames. Generally, Kemko uses “Z” shaped girts
    in depths from 8 inches up to 12 inches in gauges from 16 up
    to 12, depending on the specific application. Minimum yield
    strength of girts used by Kemko is 55,000 psi. Kemko generally
    uses bypass (lapped) girts in the endwalls and sidewalls. This
    is more economical because lapping of the members at the
    columns adds to their strength. Occasionally, a customer will
    need a building with flush mounted girts. Flush mounted girts
    are inherently weaker, and more are required to meet code.
  • Roof Panels – Kemko’s standard roof panels are roll-formed
    in the “PBR” profile, which are through-fastened to the secondary
    roof structure with long-life ZAC (zinc-aluminum alloy cast head)
    screws. The “PBR” (purlin-bearing leg) panels are stronger than
    other suppliers’ standard “R” panels. The standard thickness that
    Kemko uses is 26 gauge. Heavier gauges are available. Kemko
    also offers a number of hidden fastener standing seam roof panels.
    Because of the high wind loads in our local market area, we
    generally recommend machine seaming when a standing seam
    system is used. Standing seam panels are more costly, more
    expensive to install, and require more secondary structure in
    the building than “PBR” panels.
  • Wall Panels – Kemko utilizes 26 gauge “PBR” panels as our
    standard. Kemko also offers a number of other wall panels systems
    to fit our customers’ needs.
  • Roll-Up Doors – Kemko’s standard roll-up doors are Overhead
    Door Corporation Model 790CW Commercial Windlock doors.
    Windlock doors feature metal hooks on the vertical edges of the
    doors that lock onto the door guides and help keep the doors
    from failing in high wind load conditions. In our local market area,
    this type door is necessary to meet code requirements.
  • Roll-Up Door Frames – Because roll-up door frames are exposed
    to the weather and subject to rust, Kemko uses galvanized
    jambs and headers. Each door frame is individually designed
    to insure that it is strong enough to meet the high wind loading
    requirements of our local market.
  • Insulation – Kemko’s standard roof and wall insulation is a 3 inch
    thick fiberglass blanket with reinforced white vinyl facing to resist
    tearing. Other insulation systems are available to meet
    customers’ needs.

We hope that you will use a Kemko building for your next project. Our buildings are of the highest quality and are competitively priced. We have the desire and experience to meet your needs, give you the customer service you deserve, and the customer support you need after the sale.

27153 North Pollard Road • P.O. Box 1163 • Daphne, Alabama 36526
(251) 626-0594 • 800-831-1652 • Fax (251) 626-8851
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