SECTION PRE - ENGINEERED METAL BUILDING MATERIALS

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1 1. GENERAL: 1.01 DESCRIPTION: This supplier shall furnish materials for a Pre - Engineered Steel Structural System, for a new Cafetorium, Gymnasium, Science Labs and Classroom Building, complete with roof panels specified, Roof Insulation, wall panels as specified, structural frames, purlins, girts, and second floor (mezzanine) structure, bar joists, 20 ga. metal decking, misc. structural ` supports, stairs, fire escapes, and accessories as shown on the drawing WORKMANSHIP AND ERECTION: Erection of the Pre - Engineered Metal Building is a separate contract DESIGN CRITERIA: A. The Pre - Engineered Steel Structural System shall be the design of a manufacturer who is regularly engaged in the fabrication of Pre - Engineered structures, and is a member of the Metal Buildings Manufacturing Association. All materials shall be new, unused, free from defects and of American Manufacturer. All structural mill sections or welded-up plate sections shall be designed in accordance with the latest AISC "Specification for the Design, Fabrication and Erection of Structural Steel for Buildings," and all cold-formed steel structural members shall be designed in accordance with the latest AISI "Specification for the Design of Cold-Formed Steel Structural Members." B. The products of the following manufacturers are acceptable provided that the comply with the remainder of this specification: 1. Alliance Steel Building Systems 2. A & S Building Systems, Inc. 3. Butler Manufacturing Co. 4. CECO Building Systems 5. Star Building Systems 6. Varco-Pruden Buildings 7. Whirlwind Building Systems C. Products of other manufacturer's will be considered provided the following design information is submitted to the Engineer for approval seven (7) days prior to the bidding

2 1. Detailed Drawings, Specifications and Design Calculations of Primary Framing, Roof Panels, Gutter, Soffit, and other items covered by this specification shall be submitted for approval. A building brochure is not acceptable. 2. A full scale sample of the roof panel, no larger than 12" x 24", showing the major corrugation, lap fastener, mastic, etc. Supporting documents should also be submitted showing how the panels are fastened to the secondary structurals. Sample should have the manufacturer's name attached. 3. A full scale sample of the gutter, no larger than 12" long, showing shape and color. Sample should have manufacturer's name attached. 4. Samples shall not be returned. D. The following standards and criteria (of most recent issue) should be used where applicable in the structural design of the building covered by this specification. 1. "Recommended Design Practices Manual", Metal Building Manufacturer's Association. 2. "Steel Construction Manual", American Institute of Steel Construction. 3. "Cold Formed Steel Design Manual, American Iron and Steel Institute. 4. "Aluminum Construction Manual", The Aluminum Association. 5. "Code of Welding in Building Construction", American Welding Society. E. Design Loads: 1. The basic Design Loads shall include Live Loads and Wind Loads. All other design loads, whether they be static, dynamic, or kinetic in nature shall be considered as auxiliary loads. 2. Live Load: 20 p.s.f (not reduced); Roof Snow Load: 5.5 p.s.f, Ground Snow Load: 5 p.s.f, Collateral Load: 10 p.s.f., Dead Load: 3 p.s.f. plus weight of structure; Wind Load: 90 mph wind loads per latest MBMA Standards, and in accordance with the International Building Code, I.B.C See Drawing S1. A letter of certification from the Pre - Engineered Steel Structural System manufacturer, bearing the signature and Engineer's Seal, registered in Texas, must be provided to the owner at the completion of project. 3. Deflection Criteria: Frames shall be designed for a maximum lateral deflection of H/300, and a maximum vertical deflection of L/240. Girts are designed for a maximum deflection of L/ Roof system must carry the U.L. Class 90 Wind Uplift Rating. A letter of certification, from the Pre - Engineered Steel Structural System manufacturer, bearing the signature and Engineer's Seal, registered in Texas, must be provided to the owner upon completion of this project. F. Pre - Engineered Steel Structural System supplier will furnish all specialized tools, such as Roof Seamers, etc., that are necessary to erect this building

3 1.04 REQUIREMENTS OF REGULATORY AGENCIES: A. The following criteria shall be applicable: 1. International Building Code, 2012 issue. 2. Structural Steel Painting Council Standards 3. Federal, Military, and Commercial Standards 4. ASTM Standards 5. Ratings by: a. Underwriters Laboratories, Inc. 6. MBMA Standards 7. AISC MB Category, Metal Building System 8. ISO 9000 Certification 1.05 CERTIFICATIONS: A. All bidders must submit with their Bid Proposals, a letter of certification from the Pre - Engineered Steel Structural System's Engineer, certifying that the Pre-Engineered Steel Structural System proposed will be furnished to meet or exceed all of the above design loads criteria and that all structural design will be in strict conformance with these drawings and specifications and the current issue of MBMA "Design Practices Manual". B. Insulation manufacturer shall certify a flame spread of less than 25 on faced insulation furnished on the roof. Roof Insulation shall be R-30. Insulation width shall be as follows: (60" wide) 6 PSK parallel to purlins and 4 unfaced perpendicular to purlins for Vertical Standing Seam Roof. Facing shall be white, poly. faced, scrim reinforced, kraft attached to 6" fiberglass ( PSK) GUARANTEE: A. Roof Panels: 1. Aluminum-zinc alloy coated steel panels must carry a 100 % replacement 20 year material warranty, stating the roof panels will remain free from perforation due to corrosion under normal weather conditions. A copy of this warranty must accompany this bid. 2. Vertical Standing Seam Roof system must carry a 20 year weather tightness warranty from Pre - Engineered Steel Structural System Supplier, covering roof and all accessories furnished and installed. Cost of warranty to be included in bid. A copy of this warranty must accompany the bid

4 1.07 MATERIAL A. The design of the structural system shall be a clear rigid frame with straight or tapered columns, tube columns, and roof beams; with a gable roof. B. Actual building length shall be structural line to structural line and shall be the same as nominal - i.e., the number of bays times length of bays, as shown on Drawings. C. Actual building width shall be structural line to structural line and shall be the nominal building width, as shown on Drawings. D. The roof shall have a slope as shown on Drawings. E. All components and parts of the structural system shall be as indicated on the drawings and/or specifications. 1. All components and parts shall be clearly marked and erection drawings shall be supplied for identification and assembly of the parts. 2. All drawings shall carry the stamp and signature of a Texas Registered Professional Engineer. F. Field modification of parts shall be in accordance with the best standard procedures, require the approval of the manufacturer, and shall be the responsibility of the building erector. G. Foundations 1. All reactions for the proper design of foundations shall be supplied by Pre - Engineered Steel Structural System Manufacturing Company. 2. Anchor bolt diameter and size shall be as specified by Pre - Engineered Steel Structural System Manufacturing Company s standard anchor bolt layout drawings PRIMARY FRAMING A. Rigid Frames 1. Frames shall consist of welded-up plate section columns and roof beams complete with necessary splice plates for bolted field assembly

5 a. All base plates, cap plates, compression splice plates and stiffener plates shall be factory welded into place and have the connection holes shop fabricated. b. Columns and roof beams shall be fabricated complete with holes in webs and flanges for the attachment of secondary structural members and bracing except for field work as noted on manufacturer's erection drawings. 2. All bolts for field assembly of frame members shall be A-325 high strength bolts as indicated on erection drawings. B. Endwall Structurals 1. The endwall structurals shall be welded-up plate sections designed in accordance with the latest AISC Specification. 2. Endwall frames shall consist of endwall corner posts, endwall roof beams and endwall posts as required by design criteria. a. All splice plates and base clips shall be shop fabricated complete with bolt connection holes. All base plates, cap plates, compression splice plates and stiffener plates shall be factory welded into place and have the connection holes shop fabricated. b. Beams and posts shall be shop fabricated complete with holes for the attachment of secondary structural members except for field work as noted on manufacturer's erection drawings. C. Second Floor (Mezzanine) Structurals 1. Mezzanine beams designed to support floor loads specified. 2. Columns shall be square tube columns, sized and spaced to support floor loads as specified SECONDARY STRUCTURAL MEMBERS A. Roof Purlins and Wall Girts 1. Girts shall be "ZEE" or "CEE" shaped sections in a depth to meet code. 2. Purlins shall be "Z" shaped sections in a depth to meet code. B. Eave Struts 1. Eave Struts shall be factory "CEE" sections in a depth to meet code

6 C. Second Floor (Mezzanine) 1. Bar joist with design and spacing to meet loading and Code requirements. 2. Bar joist shall conform to latest AISC-SJI Specifications. 3. Provide horizontal bridging and X-Bracing as shown on Drawing S1 and S8. 4. Metal decking shall be 20 ga., 0.6C Decking. D. Bracing 1. Bracing shall be located as indicated on drawings. 2. Diagonal bracing shall be hot-rolled rod of size indicated on Shop Drawings, and attached to roof beams as shown on the drawings. for bracing in roof plane only. There shall be no wall brace rods or cables and no allowance for diaphragm bracing on these buildings. 3. All wall bracing shall be by Portal Frames as located on drawings. 3. Flange braces, purlin braces, etc., shall be cold formed and installed as indicated on Shop Drawings ROOF SYSTEM A. Roof Panel Location: 1. The roof on the Cafetorium, Gymnasium, Science Labs and Classroom Building shall be covered with a 16" wide, Vertical Standing Seam Roof Panel, moveable clips, and purlin insulation, and installed in accordance with the manufacturer's instructions. 2. Roofs shall be 22 gauge, galvalume. B. Component Description 1. Roof Panel a. Roof panel shall be the factory roll-formed Vertical Standing Seam Roof system panel; 16" wide with 2 major corrugations 2" high, 16" on center. b. Panel material as specified shall be 22 gage aluminum-zinc alloycoated steel Minimum 0.55 ounce coated weight per square foot

7 C. Insulation (approximately 55% aluminum 45% zinc applied by the continuous hot dip method) as determined by the triple-spot test per ASTM A792; 1. "PSK" Faced blanket insulation in 6" thickness plus 4 unfaced fiberglass, with thermal blocks to eliminate "thermal short circuits". D. System Design 1. All components of the Vertical Standing Seam Roof system shall be designed in accordance with sound engineering methods and practices. 2. The panel shall be designed in accordance with AISI "Specifications for the Design of Light Gage, Cold Formed Steel Structural Members - latest edition". 3 The roof system and its attachments shall be designed to support live, snow and wind loads. 4. The panel shall not be considered a safe work platform until completely secured to the structural system. Therefore, walkboards or other safety equipment as required by safety standards shall be provided by the erecting contractor to provide for worker safety during panel installation. E. System Installation 1. The panel shall be attached to the supporting structural by means of a seamed in clip device. The clip shall occur at the panel major corrugation. 2. The panel sidelap shall be designed to form a interlocking seam with a return leg on the lower edge of the female rib. Sidelap sealant shall be factory applied. Seam shall be mechanically seamed to form a Pittsburg Double-Lock Seam. 3. There shall be NO panel endlaps on this building. Panels shall span from eave to ridge in one continuous piece, except roof on Gymnasium. 4. Connections of the Vertical Standing Seam Roof system panel to structural member shall be made with concealed clip. The clip is a movable type which contains a movable tab, which allows for thermal expansion/contraction movement of the Vertical Standing Seam Roof system. The tab shall be factory centered on the roof clip to insure full movement in either direction. The roof shall provide for thermal expansion/ contraction without detrimental effect on the roof panel when there is a ±100 F temperature difference between the interior structural framework of the building and the roof panel. 5. Panel-to-panel connections shall be made with a positive field formed double lock seam, formed by a electrical seaming machine

8 6. Roof panel support structurals shall be insulated so as to eliminate "thermal short circuit" between structurals and roof panel. The heat loss (thermal short circuit) caused by compression of the insulation between the structural and panel is eliminated by the use of a thermal spacer block at each support structural location. 7. Underwriters Laboratories, Inc. - The roof system shall qualify for U.L. wind uplift resistance classification of 90 to ensure structural integrity and possible reduction of insurance rates. 8. Parts shall be compatible and shall not cause a corrosive condition. Copper and lead materials shall not be used with Galvalume 9. U.S. Army Corp of Engineering Guide Specification In addition, the roof system must be tested and certified in accordance with the Army Corps of Engineers Guide Specification (Test Method for Structural Performance of Standing Seam Metal Roof Systems By Uniform Static Air Pressure Difference). 10. Factory Mutual - Class 1 Fire and I-90 Windstorm Classification. Structural Integrity and the fire resistance of the roof system is produced by the complete system as defined by Factory Mutual. 11. FM Global - The roof system shall qualify for Approval as Class 1 Panel Roof (FMRC Standard 4471) and be listed in Factory Mutual Approval Guide - latest edition. 12. National Fire Protection Association - The roof system shall be considered acceptable where Class A roof coverings are required for exterior fire exposure WALL PANELS: A. Wall Panel Description 1. The wall shall be 36" wide "R" Panels with four major corrugations 1-1/4 high, 12" on center, with two minor corrugations between each of the major corrugations the entire length of the panel. 2. Panels shall be 24 gauge steel, painted. 3. Panel design shall be in accordance with AISI "Specifications for the Design of Light-Gage, Cold-Formed Steel Structural Members," and in accordance with sound engineering methods and practices. 4. Panel shall be one piece from base to top of wall

9 5. Wall panels on Gymnasium shall be 2.5 METL-SPAN insulated panels, R-19, 42 wide ( :: ) B Wall Panel Design 1. Panel design shall be in accordance with AISI "Specifications for the Design of Light-Gage, Cold-Formed Steel Structural Members" and in accordance with sound engineering practice. C. Wall Panel Material and Finish 1. R -Panel material as specified shall be a minimum 24 gage galvanized steel conforming to ASTM A653 (G90) - latest issue. 2. METL-SPAN Insulated wall panel with flat exterior profile shall have a stucco embossed texture. 3. The panel finish shall be pre-finished with a full strength, 70% Kynar D. Panel Application fluoropolymer coating, in choice of standard colors. Manufacturer warrants that coating shall not blister, peel, crack, chip, or experience material rust-through for 20 years. For a period of 20 years, chalking shall not exceed #8 - ASTM D4214 and fading shall be 5 E Color Difference Units or less.. 1. Structural system (girts) for wall panel application shall be plumb, level, and aligned as shown on the erection drawings. Any variation of intermediate girts, within tolerance, must be in an outward direction. 2. Panel shall be sealed with a molded foam closure block that fits panel configuration at the top and bottom of the wall panel. 3. All exterior trim shall match the exterior color and embossing of the Flat wall panel except the following: a. All gutter, downspout, eave trim, gable trim, and base trim to be galvanized prepainted steel with fluoropolymer coating. 4. All interior trim shall be painted. 5. All flashing, trim, closure and similar items shall be as defined on drawings as supplied by the manufacturer of the panel. E. Fasteners 1. All base, top, and girt connections shall be made with self-drilling sheet metal screws

10 2. A reinforcement clip shall be used in conjunction with self-drilling sheet metal screws at all METL-SPAN wall panel connections. F. Wall Accessories 1. Factory locations of accessories and framed openings shall be as shown on erection drawings as furnished by Pre - Engineered Steel Structural System Manufacturing Company SOFFIT WELDING 1. Pre-Painted, 24 Ga., Metal soffit panels shall be 12 wide, and have concealed fasteners. 2. Color shall be selected by the Engineer. A. Welding procedure, operator qualifications and welding quality standards shall be in accordance with the American Welding Society structural welding code. Inspection other than visual inspection as defined by AWS paragraph , shall be identified and negotiated prior to bidding. B. Certification of welder qualification shall be supplied when requested STRUCTURAL PAINTING A. General 1. All structural steel shall be prime painted as temporary protection against ordinary atmospheric conditions. Subsequent finish, painting, if required, shall be performed in the field by others. 2. Prior to painting all steel shall be cleaned of loose rust, loose mill scale, dirt and other foreign material. Unless otherwise specified, the fabricator shall not sand blast, flame clean or pickle prior to painting. 3. Factory cover all steel with one coat of red oxide primer paint formulated to equal or exceed the performance requirements of Federal Specification TT-P-636D, TT-P-664C and SSPC Paint Exposed exterior structural members shall be galvanized

11 B. Primary Frames 1. Clean all steel per SSPC-SP2. 2. Apply one coat of water reducible alkyd primer by spray or dip method to a minimum coating thickness of 1.0 mil. C. Secondary Structurals 1. Clean all steel per SSPC-SP8 or SSPC-SP6. 2. Apply one coat of coil applied polyester primer to a minimum coating thickness of 0.5 mil. (purlins and girts). Galvalume is a registered trademark of BIEC International, Inc. Fluropon is a registered trademark of The Valspar Corporation. Kynar 500 is a registered trademark of Elf Atochem North America, Inc. Hylar 5000 is a trademark of Ausimont USA, Inc END OF