MSC - Erection Manual
MSC M echanically S eamed C onstruction
®
ERECTION SEQUENCE
STEP 16
TRI-BEAD TAPE MASTIC
1/4"-14 X 7/8" WT
ROOF CAP
RIDGE-FLASHING Install the ridge flashing starting and ending 4” outside the steel line. Fasten the ridge flashing to the outside closures with 1/4"-14 x 7/8" WT fasteners. Temporarily leave 4' unfastened on each end to allow for the rake trim to be installed later. Fasteners spacing for 18" and 24" panel shown. 24" Wide Panel: Install a fastener 1 1/2” either side of panel seam and 5 1/4" center to center between seams. Five fasteners are required at each panel. 18" Wide Panel: Install a fastener 1 1/2” either side of panel seam and 5" center to center between seams. Four fasteners are required at each panel.
* * Roof Cap to be flush with the outside face of the gable trim. Refer to Section and Detail pages in the Erection Drawings.
ROOF CAP
1 ½"
1 ½"
1 ½"
1 ½"
5 ¼"
24" Panels = 4 SPACES AT 5 ¼" 18" Panels = 3 SPACES AT 5"
DO NOT FASTEN THROUGH THE LOCK OF THE STANDING SEAM.
Apply a bead of Sikalastomer-511, as shown, and install (14)1/4"-14 x 7/8" WT fasteners at roof cap laps. Use a 2" lap dimension.
1/4"-14 X 7/8" WT
OUTSIDE CLOSURE
1/4"-14 X 7/8" WT
1"
TRI-BEAD TAPE MASTIC
ROOF CAP
Refer to erection drawing General Details for expansion joint installation instructions if required.
1"
1 1/2"
SIKA 511
2"
MSC-40
Version 7.2
SUBJECT TO CHANGE WITHOUT NOTICE
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