R O O F C U R B I N S TA L L AT I O N I N S T R U C T I O N S :             H O R I ZO N TA L S TA N D I N G S E A M PA N ...
ROOF CURB                                                                                     INSTALLATION INSTRUCTIONS   ...
ROOF CURB                                                                                                  INSTALLATION IN...
ROOF CURB                                                                                             INSTALLATION INSTRUC...
ROOF CURB                                                                                      INSTALLATION INSTRUCTIONS  ...
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LMCurbs Roof Curb Installation Instructions For Horizontal Standing Seam

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Roof curb installation instructions for horizontal standing seam roof.

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LMCurbs Roof Curb Installation Instructions For Horizontal Standing Seam

  1. 1. R O O F C U R B I N S TA L L AT I O N I N S T R U C T I O N S : H O R I ZO N TA L S TA N D I N G S E A M PA N E Lp: (800) 284-1412 f: (903) 759-3598 www.lmcurbs.com 827 fisher rd longview, tx 75604
  2. 2. ROOF CURB INSTALLATION INSTRUCTIONS HORIZONTAL STANDING SEAM PANELInstallation Check List: _____Attach Sub-Frames Step 1 _____Layout Curb on Roof Panel Step 2 _____Back-up Channels Step 3 _____Apply Sealants & Set Curb in Place Step 4 _____Fasten Curb to Roof Panel Step 5 PARTS LIST Flat Washer Polyurethane Sealant Caulk Triple Bead Sealant Tape Nut 14 Gauge Galvanized Steel Subframe Bolt 5-1/2” tall Length is equal to the purlin spacing minus 1-3/8” Mounting Clip Back-up Channels( eld notch) #14 - 1 1/8” Neoprene Self-Tap Screw BEGIN INSTALLATION 1 ATTACH SUB-FRAMES (framed opening is already installed) Attach mounting clips to sub-frame and align the top of the sub-frame under Roof Purlin Sub-frame vertical box of roof curb and ush to the bottom side of roof sheets. Use the mounting clip as a template, mark on purlin where 7/16” holes are to be drilled. Once holes are drilled, attach mounting clips to purlins using at washers, nuts, and bolts (see drawing 1.1). Finger tighten all hardware, then upset threads to secure nuts. Attach sub-frames to mounting clips using at washers, nuts, and Drawing 1.2 bolts (see drawing 1.2). Flat washer Nut 3/8” x 1” Bolts Mounting clip Drawing 1.1 Roof Purlin *NOTICE* Sub-frame max. loading 500 lbs. WARNING! Page 1ALWAYS USE FALL PROTECTION WHILEWORKING AROUND ROOF OPENINGS.
  3. 3. ROOF CURB INSTALLATION INSTRUCTIONS HORIZONTAL STANDING SEAM PANEL 2 LAYOUT CURB ON ROOF PANEL Mark cut lines by setting roof curb(s) in place on roof panel (see Cut Line drawing 2.1) (DO NOT USE LEAD PENCIL). Upslope cut line will be s7 ” inu bm 3” less than outer edge of curb base ange (see drawing 2.2). o f cu r gth Downslope cut line will be 4” less than outer edge of base ange Len (see drawing 2.2). Remove exterior panel leaving the insulation face showing (see drawing 2.3) and cleanup all metal shavings and debris. Drawing 2.1 Top View Roof Panel Layout throat opening on the insulation Throat OpeningRoof Opening and cut opening (see drawing 2.2). Insulation Cu rb Ba se Fla n ge ng Fla e se Ba rb Drawing 2.3 Cu Drawing 2.2*Notice* Sub-frames and purlins not shown in the above picture. 3 BACK-UP CHANNELS Notch back-up channels (see drawing). Slide back-up channels under roof panel on top of sub-frames. Do not screw back-up Edge of roof opening channels to subframes. They will be secured when curb is fastened down. Cut leg of channel and fold under to form notch for sub-frame (typically 4 places). Back-up Channel Ce nte Ou rL ine Drawing 3.1 tsid eD of im Su b-F Back-up channels in place en ram sio no e fB ack -up Ch a nn el WARNING! Page 2ALWAYS USE FALL PROTECTION WHILEWORKING AROUND ROOF OPENINGS.
  4. 4. ROOF CURB INSTALLATION INSTRUCTIONS HORIZONTAL STANDING SEAM PANEL 4 APPLY SEALANTS & SET CURB IN PLACE Apply a strip of sealant tape and generous bead of caulk on the upslope side of the roof curb and on downslope side of the roof panel , apply a generous bead of caulk where the panel overlaps the side of roof curb and where side of roof curb overlaps panel (full perimeter) before setting roof curb in place (see drawing 4.1). Position roof curb over roof opening and lower into place, shift curb to align with sub-frames and roof panel. Prepare Upslope Panel Seams /2” Mark rib for cutting Fold over rib and 11 Remove marked section of rib crimp tight. Apply caulk Must ll end of standing A B before folding C seam with caulk. The downslope of curb is to be The upslope of curb is to be installed OVER the roof panel. installed UNDER the roof panel. Roof Curb Caulk (full length of curb) Roof Panel Caulk Caulk (apply as shown) (apply as shown) Caulk (full length of curb) Sealant Tape Drawing 4.1*Notice* Sub-frames and purlins not shown in the above picture. WARNING!ALWAYS USE FALL PROTECTION WHILE Page 3WORKING AROUND ROOF OPENINGS.
  5. 5. ROOF CURB INSTALLATION INSTRUCTIONS HORIZONTAL STANDING SEAM PANEL 5 FASTEN CURB TO ROOF PANEL Fasten curb to roof panel using #14 - 1 1/8” neoprene self-tap screw Roof Panel on 4” centers (see drawing 5.1). DO NOT FASTEN CURB OR ROOF PANEL TO SUB-FRAMES. Please ensure all self-tap screws are properly tightened before moving to the next step. Must ll end of closure with caulk. Self-Tap Screws Drawing 5.1*Notice* Sub-frames and purlins not shown in the above picture. COMPLETED INSTALLATION **Clean up installation debris before leaving area. WARNING! Page 4ALWAYS USE FALL PROTECTION WHILEWORKING AROUND ROOF OPENINGS.

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