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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 : V E R T I C A 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
ROOF CURB INSTALLATION INSTRUCTIONS VERTICAL 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 _____Attach Cap Strips Step 6 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 Cap Strip #14 - 1 1/8” Neoprene Self-Tap Screw Back-up Channels( eld notch) 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.
ROOF CURB INSTALLATION INSTRUCTIONS VERTICAL STANDING SEAM PANEL 2 LAYOUT CURB ON ROOF PANEL Mark cut lines by setting roof curb(s) in place on roof panel (see ” inu s7 Cut Line drawing 2.1) (DO NOT USE LEAD PENCIL). Upslope cut line will be r bm o f cu 3” less than outer edge of curb base ange (see drawing 2.2). gth Len Downslope cut line will be 4” less than outer edge of base ange (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 Opening Roof Opening and cut opening (see drawing 2.2). Insulation Cu rb Ba se ge Fla n ng e Fla Drawing 2.3 B ase rb Cu*Notice* Sub-frames and purlins not shown in the above picture. Drawing 2.2 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 tsid rL ine Drawing 3.1 eD of Back-up channels in place im Su en b-F sio ram no e fB ack -up Ch a nn el WARNING! Page 2ALWAYS USE FALL PROTECTION WHILEWORKING AROUND ROOF OPENINGS.
ROOF CURB INSTALLATION INSTRUCTIONS VERTICAL 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 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 vertical 11 Remove marked section of rib rib and crimp tight. Apply caulk A before folding C Must ll end of standing B seam with caulk. The upslope of curb is to be The downslope of curb is to be installed UNDER the roof panel. installed OVER the roof panel. Roof Curb Roof Panel Caulk (apply as shown) Caulk (apply as shown) 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.
ROOF CURB INSTALLATION INSTRUCTIONS VERTICAL STANDING SEAM PANEL 5 FASTEN CURB TO ROOF PANEL Roof Panel Fasten curb to roof panel using #14 - 1 1/8” neoprene self-tap screw 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. Drawing 5.1 Self-Tap Screws *Notice* Sub-frames and purlins not shown in the above picture. 6 ATTACH CAP STRIPS Turn the cap strips upside down and run a bead of caulk down the middle of the cap strips and ll each end of cap strip (see drawing 6.1). Install cap strips over the Roof Panel curb/roof panel sidelap. Fill any void at ends of cap strips with caulk. The cap strip should extend approximately 6” past both upslope and downslope base of roof curb. End View Curb base Cap strips furnished Sealant tape with curb Cap Strips Roof Panel (length varies) Drawing 6.1 *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.