How To Install Vinyl Siding Around Windows With Built In J Channel

J channels are used around windows and doors on inside corners and where the siding meets the soffit or roof at an angle.

How to install vinyl siding around windows with built in j channel.

Simply slide the siding panel into the folded j channel. Mark out a notch 1 in. The thing is im doing tyvek and fan foam. Next house gets going next week.

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. Mark cut and notch the top. My wife and i after living in a very old house for a long time are having a new house built. In from each end and deeply score the inner cutting line with a utility knife.

Im installing new construction windows with built in j. Cut a section of new j channel 2 in. I think im going to tack the windows in place. 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.

3 one final post i saw elsewhere suggested just putting the casing trim around the window and butted up to the integrated j channel all around but nothing in the window s integrated j. Well done installation of the j channel gives the vinyl siding a professional look in corners doors windows and other edges of your home. Longer than the width of the window. That doesnt leave room to slide the vinyl siding into the windows j channel.

Im rehabbing very old houses. That same post suggested you also use a drip cap below and above the top portion of the vinyl casing trim and caulk generously around the entire window.