1.0  Scope

              This section covers the design, material, fabrication, shipment 
            and erection of arch based building systems.  All material, 
            erection and field work included and excluded shall be in 
            accordance with the "Code of Standard Practice" of the building 
            construction industry.





2.0  Description

              All the various models of buildings listed below utilize the 
            basic bolted arch panel concept to form spans of various shapes.  
            The pre-punched panel bolted construction can be utilized for 
            permanent structures or be easily dismantled for reassembly with 
            virtually no damage to the members.  This portability is an 
            added feature not normally encountered in the pre-engineered 
            building field.




2.1  Building Size

              Building sizes range from 10' wide spans in our Mini models up 
            to unlimited widths in our "multi-span" arch systems.  Lengths 
            are unlimited, based on 18" increments for the Mini building and 
            2'-0" for all other models.  Peak heights and sidewall 
            clearances vary for different model types and cover a wide range 
            of combinations.




2.2  Building Type

            (A) Basic Models

               A single radius clear span arch structure.  Standard sizes range 
               from 19' wide to 100' wide with height being limited to 1/2 span 
               or less.

            (B) Open Sided

               A single radius, partial arch structure, clear span with 
               structural frame supports on open side.  Standard sizes range 
               from 19' wide to 50' wide with open side clearances of 8', 10', 
               12', 14', 16' and varying bay spacings.

            (C) S Series

               A straight sided, multiple radius clear span arch system.  
               Standard sizes range from 20' wide to 50' wide, with straight 
               sides and varying center heights.

            (D) Econospan

               A straight roof, straight sided clear span building system with
               a uniform roof slope of 18 degrees.  Standard sizes range from 
               20' wide to 30' wide with varying center heights.

            (E) Support Arch

               A single radius, arch structure with interior center column 
               support system.  Standard sizes range from 80' wide to 120' wide with 
               varying center peak heights.

            (F) Roof Systems
               A single radius clear span low profile arch structure designed 
               to act as a roof system utilizing conventional wall designs as 
               sidewall support.  Standard sizes range from 30' wide to 90' 
               wide with heights in the 10' to 30' region.

            (G) Multiple Arch Spans

               A series of single radius arch structures sharing a common 
               structural support system as an interior wall.  Standard sizes 
               range from 30' to 70' wide for each individual span, joined side 
               by side in any number of combinations from double span to triple 
               span and upward.

            (H) Conveyor Covers

               Either single radius or multiple radius clear span arch 
               structures designed to cover standard single or double conveyors 
               and acting as a gallery.  Standard sizes range from 10' wide to 
               30' wide with heights and sidewall clearances to accommodate any 
               combination of conveyor and walkway systems.

            (I) Mini Buildings (Security Shelters)

               Single radius clear span arch structure with straight sides.  
               Designed to provide tamper proof, secure cover for remote 
               storage locations such as well-head valves, oil field storage, 
               etc.  Standard sizes range from 10' wide to 20' wide with 
               various peak heights to suit different applications.




2.3 Arch Structures

              All arch structures, other than Mini Buildings, utilize our 
            standard 2'W X 10'L corrugated prepunched panels as the basis of 
            the design.  Panels are cold formed to various radii as required 
            and bolted together to achieve the desired span.  Panels are 
            gang punched to ensure uniformity of manufacture and ease of 
            assembly.




2.4  Endwall Systems

              All endwalls are designed using our standard 18" center 3 1/4" 
            deep corrugated, prepunched panels to form various endwall 
            arrangements as required.  By altering the pattern of panels any 
            size opening can be achieved to accommodate roll-up, overhead, 
            swing or sliding door systems.




2.5  Building Loading

            General
 
                Basic design loads shall include live, snow, wind and earthquake 
              (if applicable) in addition to dead load.  All loading shall be 
              in accordance with the governing building code as prescribed by 
              local building authorities.


            Snow and Wind Load

                Design snow and wind load shall be based on the specified ground 
              snow load and wind pressure respectively.  Distribution of 
              loading over the building envelope shall be in accordance with 
              the applicable governing building codes for the location 
              involved.

            Seismic Loads

                If applicable, the effect of dynamic loads must be considered in 
              combination with other loads.




3.0  Design and Plans

            Plans and Specifications

              The manufacturer shall submit plans and specifications in 
            sufficient detail to establish the design of the structure under 
            consideration, including but not necessarily limited to, all 
            loading conditions, material grades and geometry of the panel 
            section.

            Design Certification

              Upon request, the manufacturer shall furnish a letter of design 
            certification signed and sealed by a registered professional 
            engineer.




4.0  Materials

              Materials shall be new and shall meet or exceed the mechanical 
            and physical properties required by the design and the 
            fabrication process.




4.1  Material Certification

              Upon request the manufacturer shall furnish a letter certifying 
            that current inventory materials meet or exceed the mechanical 
            and physical requirements of the design and fabrication process.  
            Laboratory or mill test reports of current inventory materials 
            shall be available for inspection if required.




4.2  Fabrication

              Fabrication tolerances shall not exceed those recommended by the 
            governing building codes.




5.0  Arch Systems Materials

            Basic arch panel structures are available in the following material:
              
              Galvalume - .027" to .066" AZ180 Galvalume steel (Heavy Commercial 
              Coating with 20 Year Mill Warranty) passivated with regular mill 
              finish.




5.1  Fasteners

              Fastener location and spacing shall be in accordance with 
            manufacturer's standards for the roof (arch) and wall panels.  
            Basic structural fasteners are as follows:

              Indented Hex Washer Head Machine Screws, Organic Coating, 
              Assembled with Neoprene Washers

              5/16 - 18 X 3/4"
              5/16 - 18 X 1"
              3/8 - 16 X 1"

              Square Machine Screw Nuts, Organic Coating

              5/16 - 18
              3/8 - 16




5.2  Sealant

              Manufacturer shall provide, when requested, quality metal 
            building tape sealant for all roof seams and joints.  Sealant is 
            a butyl rubber compound used to seal panels against air, dirt, 
            ice and water.  Material is compatible with most plastics, 
            foams, rubber and other metal building components.




5.3  Trim and Flashing

              Special manufactured standard double angle flashing system is 
            utilized at all endwall to roof transitions.  Flashing is made 
            from heavy gauge (18 & 22) to provide some structural stability 
            as well as finishing features.




6.0  Accessories

              Manufacturer provides a complete array of standard accessory 
            items available for all structure types.




6.1  Swing Doors

              Construction - Pre-hung 4' X 7' panel assembled door suitable 
            for padlock type closure.




6.2  Sliding Doors
 
              Top Hung heavy duty panel construction, with 14 gauge framing 
            and 22 gauge corrugated door panels.  Doors are equipped with 
            pull handles, heavy duty ball bearing rollers, interlocking 
            edge, bottom seals, latch and lock device.




6.3  Hangar Doors

              Manufacturer has a full range of standard double track top hung 
            sliding hangar doors.  Construction is as standard sliding doors, 
            and leafs are on a double track system to allow for partial 
            opening.  Sizes range from 30' in width up to 80' in width in 
            heights for 10'-0" to 20'-0".




6.4  Sectional Overhead Doors and Roll Up Doors

              Framed openings shall be all steel heavy duty bolted 
            construction.  Type of door, hardware required and glazing shall 
            be furnished, installed and painted by others.




6.5  Skylights, Door Lights, Wall Lights

              Manufacturer has a wide variety of fiberglass panels formed to 
            the shape of the basic building components.  Material is a 
            quality 12 oz., 16 oz., or 24 oz. fiberglass panel designed to 
            install as a replacement for standard steel sections for ease of 
            erection.




6.6  Ventilators

              Continuous circular gravity type 12" diameter ventilator or 12" 
            diameter turbine ventilators utilizing heavy duty ball bearing 
            type shafts for quiet long lasting service.




6.7  Roof and Wall Insulation

               Arch type structures are compatible with all conventional 
             insulation methods, spray on, fiberglass rolls or rigid foam.




7.0  Warranties

            Manufacturer's Warranty shall warrant the following:

              1)  All buildings are designed in accordance with the local 
                   governing building code to withstand the published wind and snow 
                   loadings when provided by the seller to the manufacturer.

              2)  All materials will be free of defect in material and 
                    workmanship.




8.0  Shipping

              All arch structures have unique compact stacking capability due 
            to the nesting of the standard panel components.  This stacking 
            feature greatly reduces the bulk found in normal building 
            construction and reduces freight costs.




9.0  Erection

              The manufacturer supplies detailed comprehensive erection guides 
            and blueprints for all building models.  These erection guides 
            contain valuable information to minimize construction problems 
            and speed up installation.