Other applications can use 1 1/4-inch galvanized roofing nails to fasten the eave trims to the lowest roof purlins. Specific fasteners positioned between 12 and 24 inches apart secure the eave trim in place. “It is installed onto the roof, then the inside closure is installed on top the eave trim, which when the panel is installed, will close of the open voids left by the profile of the roof panel.” While eave trim must be cut and folded to fit the fascia and gable, it requires minimal angling to make a proper fit. “The eave trim terminates the roof panel at the eave end of the panel to the wall panel,” says Ken Gieseke, vice president of sales and marketing at McElroy Metal, Bossier City, La. It can be installed both over and under the underlayment. As a rule of thumb, eave trim should be installed prior to installing the roofing panels when possible. Interfacing with the gutter or drainage system, it is installed on the lowest point on the roof and must handle any runoff from the roof’s upslope portions. Metal eave trim (sometimes called eave drip) pieces redirect rain runoff away from the perimeter of the roof fascia. It should be in complete contact with the end dam, closures and the roof panel without any voids or gaps. To prevent leakage at the ridge that could drip or run under the installed roof system or into portions of the structure, confirm the sealant is in the correct location. Ridge caps should be end lapped a minimum of 4 to 6 inches.Ĭheck to ensure all end dams and closures are correctly assembled.Each screw should be positioned 1/2 inch above the edge of the ridge cap and should be driven until the neoprene gasket on the screw begins to spread out from beneath the metal washer. Drive one 2-inch, self-tapping metal roofing screw through both sides of the metal ridge cap into the roofing material. HOW TO INSTALL GABLE TRIM METAL ROOF DRIVER
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