Installing Vinyl Siding Around Windows With Integrated J Channel

When i know a house will be sided in vinyl i select windows that have either an integral j channel or a slot to receive an applied cap that creates a receiver channel.

Installing vinyl siding around windows with integrated j channel.

Caulk behind the vinyl nailing flange of the window first then install grace strips over the flange and then you can run your siding right into the window j channel. Don t drive them tight. Mark cut and notch the top. I only use plywood.

No pieces to separate. Alternatively i use vinyl window and door casing which is essentially a 2 1 2 in. Cut and position an undersill trim if necessary see when to use undersill trim. For the window first position the j channel against the window casing.

Some modern vinyl windows however incorporate a j channel right into the. Through the middle of the slots. On the top of the window don t run it to tight leave room for the water to run off. Drive roofing nails every 8 to 10 in.

Another option is crane board makes an adapter that snaps onto the windows built in j channel that turns it into a 1 1 4 deep j pocket for use with their insulated siding. The intergral j is a real bad idea. Continue installing courses of siding along the sides of the window leaving 1 4 inch spaces within the j channel at the end of each piece of the siding for expansion. Traditionally j channel was a siding trim molding fastened around windows and doors which then received the siding.

Install j channel under the window. Nail it to the wall but remember not to nail it tightly. Integral j is fine its actually better. The vinyl siding trim pieces should slide back and forth slightly.

Windows and doors install the j channel vinyl siding around all four sides of a window or three sides of a door.