How To Install J Channel Under Existing Siding

For doors and windows cut and install the top j channel piece flush with the outer face of the side j channels.

How to install j channel under existing siding. Longer than the width of the window. See below for a shopping list and tools subscr. We would ve liked to put 3 j channel to give the windows a bolder look. Mark out a notch 1 in.

Install lengths of j channel along the inner edge of the fascia. Is this possible with the existing siding already there. In from each end and deeply score the inner cutting line with a utility knife. Nail j channel pieces under the fascia.

Even if i somehow put the new j channel over the original j for cosmetic purposes only that would suffice for me. This old house general contractor tom silva shows how to prevent water from leaking in behind vinyl siding. Almost all of my windows have standard j channel that doesn t protrude very far. Cut a section of new j channel 2 in.

You have to wrap the window with vinyl j channel to divert water and to cover the ends of the siding photo 9 you ll probably have to buy new strips for this. The j channel will conceal the cut edges of the soffit lengths and will provide a watertight seal. Cut a tab in the bottom of the side j channels and fold under. Cut and bend the drain tab.