Installing J Channel On A Metal Roof

J channels are designed to be used in metal roofing applications.

Installing j channel on a metal roof. Measure the entire length of the existing fascia in linear feet and divide by 12 to establish the quantity of 12 ft. J channel is a surprise j shaped length of aluminum that the soffit fits into against the house. If there are any windows or doors nail j channel around the edges of those as well. Ask a friend to help you lift the panels into the f channel.

To splice the j channel follow these steps. The metal siding will slide into the j trim so. Connect the panels end to end to create a long panel. Use it to anchor any edges of soffit not covered by.

Attach the j trim along the line that will form the upper edge of the metal siding. Insert the screw through the fascia. A simple j channel with no hem a hemmed j channel for exposed applications and a j channel with a nailer that receives the flat portion of a metal roof panel that can be then screwed to a roof. To install vertical metal siding start by applying horizontal furring strips and sheathing to the surface you re working on if it s uneven.

Installing j channel for soffit. Install the roofing screws vertically along each rib in the panel. There are mainly 3 types of j channels. Soffit panels come in 10 foot lengths so divide the measurement by 10 to determine how many panels you will need.

Install inverted j channel along the top of the wall under the eave. Cut out a 1 section of the nailing flange and face return as shown. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line. It also helps waterproofing a roof since its installation is water directional.

Then install the corner posts that came with your siding and nail j channel along the top and bottom of the wall. Drill in a 2 inch screw through the first hole at the top of the j channel. Fascia and j channel sections needed. Continue down the first piece and insert a screw every 12 inches.

Here again leave a 1 4 gap between the j channel and the cornerposts. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. At an interior corner the siding. Nail the soffit to the end of each roof truss.

Measure the length from the first roof truss to the last roof truss. Then add 5 percent. The j channel flashing metal acts as a receiver for metal roof panels ridge caps and headwall flashing. Nail the j trim horizontally along both sides of any interior corners.

Move down 12 inches and insert another screw through the hole at the top of the j channel.