LMCurbs Roof Curb Installation Instructions For Universal Standing Seam
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 : U N I V E R S 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 UNIVERSAL 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 UNIVERSAL 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 3” s 7” inu rbm less than outer edge of curb base ange (see drawing 2.2). o f cu g th 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. Top View Roof Panel Drawing 2.1 Roof Opening Layout throat opening on the insulation Throat Opening and cut opening (see drawing 2.2). Insulation Cu rb Ba ge se n Fla Fla Drawing 2.3 ng e B ase rb Cu*Notice* Sub-frames and purlins not shown in the above picture. Drawing 2.2 Edge of roof opening 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 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 Back-up channels in place Drawing 3.1 Ce nte Ou rL tsid ine eD of Su CONVERT TRIPLELOK SEAM TO QUADLOK (if needed) im b-F en ram Convert a TripleLok panel seam to a QuadLok. Use duck billed crimpers to sio no e atten the panel seam. Steps 1 through 3 below illustrate how to properly fB ack -up crimp the seam. Ch a nn el TRIPLELOK SEAM QUADLOK SEAM Step 1 Step 2 Step 3 WARNING! Page 2ALWAYS USE FALL PROTECTION WHILEWORKING AROUND ROOF OPENINGS.
ROOF CURB INSTALLATION INSTRUCTIONS UNIVERSAL STANDING SEAM PANEL 4 APPLY SEALANTS & SET CURB IN PLACE The upslope highs are to be Apply a strip of sealant tape and generous bead of caulk on the installed UNDER the roof panel. 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 Roof Curb align with sub-frames and roof panel. Roof Panel The downslope highs are to be installed OVER the roof panel. Caulk (apply as shown) Caulk Sealant Tape (apply as shown) Drawing 4.1*Notice* Sub-frames and purlins not shown in the above picture. Must ll end of standing 5 FASTEN CURB TO ROOF PANEL seam with caulk. 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. Self-Tap Screws Drawing 5.1*Notice* Sub-frames and purlins not shown in the above picture. WARNING! Page 3ALWAYS USE FALL PROTECTION WHILEWORKING AROUND ROOF OPENINGS.
ROOF CURB INSTALLATION INSTRUCTIONS UNIVERSAL STANDING SEAM PANEL 6 ATTACH CAP STRIPS Turn the cap strips upside down and apply sealant tape to the entrie length of both inside legs. Then run a bead of caulk down the middle of the cap strips and Roof Panel at each end of cap strip (see drawing 6.1). Install cap strips over the curb/roof panel sidelap, fasten with screws alternating on 6” centers (staggered on both sides). The capstrip should extend approximately 6” past both upslope and downslope base of roof curb. Cap strips furnished with curb Sealant tape Caulk Cap Strips Screws staggered 6” on center (length varies) (both sides)Curb base Roof Panel Sealant tape (both sides) Caulk Drawing 6.1 1” between each bead of caulk at each end *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.