™ Assembly and Installation Instructions Section 1 March 2013 PART NO.
Table Of Contents SECTION PAGE 1. General Notes and Guidelines………………………………………………………….. 3 - 4 2. Parts Identification - Fasteners and Accessories…………………………………… 5 - 7 3. Parts Identification - 7” System………………..……………………………..………… 8 - 9 4. Parts Identification - 8” System…………………..…………………………………….. 10 - 11 5. Parts Identification - Misc. Extrusions………………………………………………… 12 - 14 6. Typical Installation configurations…………………………………………………….. 15 7. Frame Assembly…………………….……………………………………….................... 16 - 18 8.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 1: General Notes And Guidelines HANDLING / STORING / PROTECTING ALUMINUM The following guidelines are recommended to ensure early acceptance of your products and workmanship. D. PERIMETER CONDITIONS - Verify that all job site conditions and accompanying substrates receiving the installation are in accordance with the contract documents.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 1: General Notes And Guidelines STRUCTURAL SEALANT JOINT DETAIL H. STRUCTURAL SEALANT JOINTS - The maximum allowable size of the glass lite is controlled by the width and depth of the structural silicone joint combined with the specified design wind load (PSF or Pa). The stress on the structural silicone must not exceed 20 PSI (137 KPa) for a 6:1 safety factor.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 2 - Parts Identification - Fasteners and Accessories Profile Profile EFCO 2012 Fasteners Profile Part # Description #13-16 X 5/8" HWH-SMS 18-8 A GM SFQ5 1/4"-14 X 1 1/2" HWH SHOULDER- SMS 18-8 B SFZ8 #8-15 X 1/2" PL-FH-SMS 18-8 STT6 #8-18 X 9/16" PL-FH-SMS ZC TEK/2 STK4 #8-18 X 1/2" PL-FH-SMS 410 TEK/2 Part # Description STC0 Part # Accessories Description Material WEP8 Standard 1/4” Preset Glazing Gasket
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 2 - Parts Identification - Fasteners and Accessories Profile EFCO 2012 Part # Accessories Description Material HEN2 Standard 2” Setting Block Shore A 85 Duro General Purpose Black EPDM LC08 Standard Perimeter Pocket Filler Rigid PVC HCV9 Captured System Perimeter Joint Plug / Filler Shore 00 60 Duro Black General Purpose Silicone HEN1 Captured System Intermediate Joint Plug Shore 00 60 Duro Black EPDM Sponge HC
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 2 - Parts Identification - Fasteners and Accessories Profile EFCO 2012 Part # Accessories Description Material WEP6 Expansion Mullion Finger Gasket Shore A 70 Duro General Purpose Black EPDM WNA3 Wedge Gasket use with 17S7 Glazing adaptor Shore A 60 Duro Santoprene Page 7
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 3 - Parts Identification - 7” System Profile Part No. Description Tooling Drawing / Cut Formulas 5G12 7” Head / Sill / Jamb 55XT-008 5G13 7” Intermediate Horizontal Cut to length = horizontal D.L.O. 5G14 7” Door Header Cut to length = horizontal D.L.O. 5G15 7” Intermediate Vertical 55XT-001, 55XT-009 FL04 Splice for 5G15, 5G12 Reference FL04 Part Drawing.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 3 - Parts Identification - 7” System Profile Part No. Description Tooling Drawing / Cut Formulas FK20 Splice for 5G16 Reference FK20 Part Drawing. 55XT-011 Splice for 17S2 Reference FL06 Part Drawing. 55XT-012 17S3 7” SSG Intermediate Vertical 55XT-004 FL05 Splice for 17S3 Reference FL05 Part Drawing. 55XT-010 15B7 7” Frame Filler Use with 5G12 and 5G15. Cut to length = horizontal D.L.O. at std. head and sill.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 4 - Parts Identification - 8” System Profile Part No. Description Tooling Drawing / Cut Formulas 5G06 8” Head / Sill / Jamb 55XT-008 5G07 8” Intermediate Horizontal Cut to length = horizontal D.L.O. 5G08 8” Door Header Cut to length = horizontal D.L.O. 5G09 8” Intermediate Vertical 55XT-001, 55XT-009 FL01 Splice for 5G09, 5G06 Reference FL01 Part Drawing.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 4 - Parts Identification - 8” System Profile Part No. Description Tooling Drawing / Cut Formulas FK22 Splice for 5G10 Reference FK22 Part Drawing. 55XT-011 Splice for 17P4 Reference FL03 Part Drawing. 55XT-012 17P5 8” SSG Intermediate Vertical 55XT-004 FL02 Splice for 17P5 Reference FL02 Part Drawing. 55XT-010 15B2 8” Frame Filler Use with 5G06 and 5G09. Cut to length x horizontal D.L.O. at std. head and sill.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 5 - Parts Identification - Misc.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 5 - Parts Identification - Misc. Extrusions Profile EFCO 2012 Part No. Description Tooling Drawing / Cut Formulas FWF2 Strike Plate Adapter Reference FWF2 Part Drawing. FWF3 Strike Plate Adapter Reference FWF3 Part Drawing. FWF4 Strike Plate Adapter Reference FWF4 Part Drawing. FWF5 Strike Plate Adapter Reference FWF5 Part Drawing. FL08 2” Glazing Setting Chair Reference FL08 Part Drawing.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 5 - Parts Identification - Misc. Extrusions Profile Part No. Description Tooling Drawing / Cut Formulas 7419 2” x 3/4” Snap Cover used at Door Header CTWL-219A 17S7 1” Glazing Adapter (2” to 1” for 2 1/2” glazing pocket) Cut to length Horizontal D.L.O. minus 1/16” Vertical D.L.O. Plus 1” FK12 Head Pipe Sleeve Anchor x 1 3/8” Long (1/2” Dia. Fasteners) Reference FL12 Part Drawing.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 6 - Typical Installation Configurations The wall sections below depict the standard types of installations for the S-5500 X-Therm curtain wall. Refer to the approved shop drawings for dimensions and configurations of the frame, anchor and splice. 5G06 5G06 5G06 Head Anchor (Page 33 and 34) Head Anchor (Page 33 and 34) 350” MAX.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 7 - Frame Assembly Apply sealant in reglets of jambs at horizontal locations. Perimeter O.G. Mullion Perimeter O.G. Jamb Mullion Frame Gasket Head Apply sealant in reglets of jambs at horizontal locations. Frame assembly screws : 1/4” - 14 x 1 1/2” HWH SMS 18-8 typical. Vertical Filler Vertical Filler Frame Gasket Figure 4 Intermediate Horizontal Horizontal Filler Apply at installation.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 7 - Frame Assembly 1. Using an approved solvent or cleaner, clean the frame gasket contact surfaces of all oils and other contaminants. 2. Remove the liner from the frame gaskets and apply them to the matching surfaces of the mullions ensuring the holes and edges align as required. See Figure 2, 3, 4, page 17. Butt sealing the ends of the horizontals may be used instead of applying frame gaskets, if desired. 3.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 7 - Frame Assembly 6. Seal the jamb as shown in Figures 3 thru 5 on page 17 at the horizontal locations, and snap the perimeter jamb mullion onto the filler portion of the assembled frame. 7. Fasten the jamb to the filler with SPC9 screws at the horizontal locations.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs Expansion Mullions Typical Left Jamb Frame (See Figure 8, Page 20) Typical Intermediate Frame (See Figure 9, Page 21) Typical Expansion Mullion Frames (See Figure 10, Page 22) Typical Right Jamb Frame (See Figure 11, Page 23) TYPICAL SINGLE SPAN FRAMES Figure 7 EFCO 2012 Page 19
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs Apply all perimeter and intermediate joint plugs that can be pre-installed in the shop as shown and noted below. Perimeter Joint Plug Head Perimeter Joint Plug See Figures on pages 24 and 25 for perimeter plug sealant application. See Figures on page 29 perimeter plug sealant application. Perimeter O.G.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs Apply all perimeter and intermediate joint plugs that can be pre-installed in the shop as shown and noted below. Perimeter Joint Plug Head See Figures on page 29 perimeter plug sealant application. Vertical Filler Intermediate Joint Plug Intermediate Horizontal See Figures on page 30 for intermediate plug sealant application. Field applied joint plugs. See sheet 37 and 39. Intermediate O.G.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs Apply all perimeter and intermediate joint plugs that can be pre-installed in the shop as shown and noted below. See Figures on pages 29 perimeter plug sealant application.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs Apply all perimeter and intermediate joint plugs that can be pre-installed in the shop as shown and noted below. Perimeter Joint Plug Head See Figures on pages 24 and 25 for perimeter plug sealant application. Vertical Filler Intermediate Joint Plugs Field applied joint plugs. See sheet 37 and 39. See Figures on page 26 for perimeter plug sealant application. Intermediate O.G.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs 1. Using an approved solvent or cleaner, clean the joint plug, and the joint plug sealant contact surfaces of the mullions of all oils and other contaminants. 2. Apply sealant to the joint plugs and the joint plug sealant contact surfaces of the mullions as shown and noted below. Be sure to fill the gasket reglets in the vertical mullion at the sealant contact areas. 3.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs 4. Once the plugs are flush and in place as shown, tool the excess sealant over the top and bottom surfaces of the joint plug. 5. Tool the sealant around the plug, sealing it to the surfaces of the glazing pocket, and side of the mullion on the exterior sides of the frame. See figures 16, 17 and 18. 6.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs 8. Using an approved solvent or cleaner, clean the joint plug, and the joint plug sealant contact surfaces of the mullions of all oils and other contaminants. 9. Apply sealant to the joint plug and the joint plug sealant contact surfaces of the mullions as shown and noted below. Be sure to fill the gasket reglets in the vertical mullion at the sealant contact areas. 10.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs 14. Using an approved solvent or cleaner, clean the joint plug, and the joint plug sealant contact surfaces of the mullions of all oils and other contaminants. 15. Apply sealant to the joint plugs and the joint plug sealant contact surfaces of the mullions as shown and noted below. Be sure to fill the gasket reglets in the vertical mullion at the sealant contact areas. 16.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs 17. Once the plugs are flush and in place as shown, tool the excess sealant over the top and bottom surfaces of the joint plug. 18. Tool the sealant around the plug, sealing it to the surfaces of the glazing pocket, and side of the mullion on the exterior sides of the frame. See figures 28, 29 and 30. 19.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs 21. Using an approved solvent or cleaner, clean the joint plug, and the joint plug sealant contact surfaces of the mullions of all oils and other contaminants. 22. Apply sealant to the joint plugs and the joint plug sealant contact surfaces of the mullions as shown and noted below. Be sure to fill the gasket reglets in the vertical mullion at the sealant contact areas. 23.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs 24. Using an approved solvent or cleaner, clean the joint plug, and the joint plug sealant contact surfaces of the mullions of all oils and other contaminants. 25. Apply sealant to the joint plug and the joint plug sealant contact surfaces of the mullions as shown and noted below. Be sure to fill the gasket reglets in the vertical mullion at the sealant contact areas. 26.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 8 - Shop Applied Joint Plugs 30. Using an approved solvent or cleaner, clean the joint plug, and the joint plug sealant contact surfaces of the mullions of all oils and other contaminants. 31. Apply sealant to the joint plugs and the joint plug sealant contact surfaces of the mullions as shown and noted below. Be sure to fill the gasket reglets in the vertical mullion at the sealant contact areas. 32.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 9 - Perimeter Pocket Fillers 1. Apply the LC08 perimeter PVC pocket filler to the head, sill, and jamb of the jamb frames. Note that the LC08 stops 1 1/2” short at each end of the jambs to allow for the installation of the perimeter joint plug. The LC08 at the head and sill runs the length of the D.L.O. dimension. 2. Apply the LC08 perimeter PVC pocket filler to the heads and sills of the Intermediate frames. 3.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 10 - Standard Anchorage Method Refer to the approved shop drawings for job specific conditions, anchor type, anchor bolt sizes, and locations. Install anchor assemblies according to the final approved shop drawings. The anchor type used must be selected based on the structural requirements and the substrate. Masonry or heavy gauge steel condition.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 11 - Install Single Span Frame Components 1. Set the first frame into the opening using dead load shims to level the frame, and make all necessary adjustments to properly locate the frame to established benchmarks. 2. After the frame is plumb and all adjustments have been made, match drill through the holes in the head and sill into the surrounding substrate, and apply the anchor bolts.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 11 - Install Single Span Frame Components 3. Apply sealant to the verticals as shown in Figures 2 and 3 on page 17, to seal the vertical and fillers at the intersection of the heads, sills, and intermediate horizontals. This seal should be made immediately before snapping the filler and the vertical mullions together. 4.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 11 - Install Single Span Frame Components 8. Expansion mullions are required for elevations wider than 20’-0”. The maximum spacing between expansion mullions is 20’-0” to 25’-0” depending on lite size. Refer to the final approved shop drawings for specific locations and more information. 9. Slide mullion clips into the female mullion as shown in Figure 44 prior to installing the frame into the opening.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 11 - Install Single Span Frame Components 13. Apply joint plugs into the open areas of the glazing pocket of the vertical adjacent to the horizontals where the joints plugs were left open for field application as shown in Section 8, beginning on page 29. 14. NOTE: On long runs, check overall frame dimensions at every fifth opening to avoid dimensional build-up. The commercial cut length tolerance is +/- 1/16”.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 11 - Install Single Span Frame Components 15. Once the first expansion mullion frame is installed as shown on page 37, stack in the other expansion mullion frame, mating the mullions together as shown below. The mullion clips will snap the mullions together during this process. Use 1/8” shims in the joint at the back of the mullion to set the joint to the nominal size as required.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 11 - Install Single Span Frame Components 17. Stack the expansion joint frames together as described on page 38, and anchor once the frame is level and plumb. Mullion Clip at 48” o/c max. (FK34 - 7” system) (FK35 - 8” system) Snap fillers in to head and sill. Seal the vertical joint at expansion mullions continuously with sealant (see Figure 47, page 38).
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 11 - Install Single Span Frame Components 18. 19. 20. 21. 22. Seal the vertical at horizontal locations. (See Figure 2 and 3 on page 17). Set the last frame in the run into the opening mating the filler with the intermediate vertical until the filler and vertical snap together. When the frame is set level and plumb, apply the dead load shims below the verticals and anchor points, and apply anchors as shown on pages 33 and 34.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 12 - Install Twin Span Frame Components 1. Set the first frame into the opening using dead load shims at the sill to level the frame, and make all necessary adjustments to properly locate the frame to established benchmarks. 2. After the frame is plumb and all adjustments have been made, match drill through the holes in the head and sill into the surrounding substrate, and apply the anchor bolts at the head and sill.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 12 - Install Twin Span Frame Components 4. Once the frame has been properly set, and securely anchored at the head and sill, place the intermediate wind load anchor flush with the face of the slab and with the side of the jamb mullion as shown in Figure 48 below. Refer to the final approved shop drawings for exact anchor placement and minimum bolt edge distance requirements. 5.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 12 - Install Twin Span Frame Components 9. Match drill the face of the slab through the holes provided in the anchor and attach the assembly to the structure. Refer to the final approved shop drawings, and the bolt manufacturer’s installation instructions for more information. See Figure 50 below. 10. The filler must be attached to the main section of the mullion assembly at the jamb anchor locations.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 12 - Install Twin Span Frame Components 12. Refer to the final approved shop drawings for the size, configuration, and other information for anchors welded to steel structure conditions. Floor Slab Perimeter O.G. Mullion 9/32” Wind Load Anchor Floor Slab Jamb Condition Wind Load Anchor 9/32” Attach the filler and mullion sections together with fasteners as noted in the final approved shop drawings.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 12 - Install Twin Span Frame Components 13. Apply sealant to the verticals as shown in Figures 2 and 3 on page 17 to seal the vertical and fillers at the intersection of the heads, sills, and intermediate horizontals. This seal should be made immediately before snapping the filler and the vertical mullions together. 14.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 12 - Install Twin Span Frame Components 18. Once the frame has been properly set, and securely anchored at the head and sill, place the intermediate wind load anchor flush with the face of the slab and with each side of the intermediate mullion shimming between the anchor and mullion as shown in Figure 54 below. Refer to the final approved shop drawings for exact anchor placement and minimum bolt edge distance requirements.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 12 - Install Twin Span Frame Components 21. Attach the anchors to the mullion using the specified anchor bolts, and flat and spring lock washers as required. See Figure 56. 22. Match drill the face of the slab through the holes provided in the anchor and attach the assembly to the structure. Refer to the final approved shop drawings, and the bolt manufacturer’s installation instructions for more information.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 12 - Install Twin Span Frame Components 25. 26. 27. 28. 29. 30. 31. 32. 33. Continue setting all the intermediate frames following previous steps until all frames have been installed except the final jamb frame. Check frequently to ensure the installed framing is in the proper position with regard to established benchmarks and are level and plumb. Seal the vertical at horizontal locations including the head and sill.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 13 - Glazing Preparation 1. Install Fl08 setting block into bottom reglet as shown below. Setting blocks are typically located at 1/4 points refer to shop drawings for special locations. Customer / Installer Note: EFCO setting block are typically 4” in length worth different depths.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 13 - Glazing Preparation 1. Remove glazing gasket from the reel and allow to shrink. 2. Apply sealant into gasket raceway a minimum of 2” in each direction from the corner. (Figure 59) 3. Once the gaskets have relaxed, cut and install into position. Vertical gaskets must ne cut vertical D.L.O. plus 1 3/4”. Place into position starting a the center of the D.L.O.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 13 - Glazing Preparation 1. Depending on your specific installation sequence, it may me desirable to install temporary glazing retainers to hold the infill glazing in the opening. Apply the retainers as needed: however, it is suggested that they be spaced no more than 30” apart. They are intended for short term temporary applications only and are not to be left unattended, or overnight.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 13 - Glazing Preparation 1. Remove glazing gasket from the reel and allow to shrink. 2. Apply glazing gaskets to the pressure plates. Gaskets must be cut flush at both end of the vertical pressure plate except in multi-story applications, where gaskets are to extend 1” beyond the top end to cross the expansion joint. The pressure plate should extend 3” past the slice. 3.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 13 - Glazing Preparation 1. First attach vertical Pressure Plates and the Horizontal pressure plate into position using #13 x 5/8” S.S. Hex Head screws. Locate screws 6” O.C. and at a maximum of 3” from the ends of each pressure plate. Torque screws to 80 inch-pounds. When possible, work from the center outward on the horizontals and from the sill upward on the verticals 2.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 13 - Glazing Preparation 1. Stretch “W” side blocks, install and position in the jamb cavity as indicated.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 14 - Vertical Splice Joints 1. Splice Joints should occur at the spandrel areas (if Possible). Refer to approved final shop drawings fro actual locations. 2. Depending on the specific job requirements, splice sleeves may be shop or field assembled in the top of the lower mullion. If materials are field fabricated, use the following assembly instructions.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 14 - Vertical Splice Joints Splice sleeve will vary with the system mullion depth and requirements.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 14 - Vertical Splice Joints Install backer rod as required to seal splice joint and pressure plate 3” minimum 1” minimum Use backer rod and sealant to form a ramp to guide water EFCO 2012 Page 57
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 15 - Exterior Cover Installation 1. Locate and apply vertical covers as shown on the approved Final shop drawings. Engage one side, then use the mallet and block to engage the opposite side. 2. Center the horizontal snap cover in the opening and apply it in the same manner. Gaps at the ends should be split equally and are to allow for thermal movement and weepage. Note: Exterior Horizontal covers are cut D.L.O.—1/16”.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 15 - Exterior Cover Installation 1. On vertical covers 1” in depth and over, it is necessary to install a 1/16” x 5/16” roll pin at the horizontal cover locations to prevent slippage. 2. On Horizontal covers 1” in depth and over, it is necessary to mechanically attach the cover to the pressure plate similar to what is shown below to insure against disengagement of cover from the pressure plate.
Series 5500 XTherm™ Curtain Wall Assembly and Installation Instructions Section 16 - Reinforcement 1. At large spans or in high load areas, internal steel reinforcement may be necessary. Reinforcement steel requirements will vary from job to job. Please reference the approved final shop drawings for steel reinforcement requirements. 2. When steel reinforcement is factory installed into the mullions, fasteners will be used to prevent damage or slippage of the steel during shipment.
