Installing Exterior Window Trim Over Aluminum Siding

The head flashing is installed in a bed of caulking onto the top of the window frame.

Installing exterior window trim over aluminum siding.

Prepare the area for installation of the new window. If the trim is being applied over the hardi panels. The client had a tight budget and just wanted to patch in new siding to match the existing siding. Add the corner posts.

To remove the old window you will first need. The wrb is lapped over the head flashing or the flashing is taped. The rain screen battens are run down to the top of the window flange. These will be easy to trim to exactly the right length at the end.

You can use shims if necessary to level and plumb the. Foam board is the most commonly recommended underlayment application for aluminum siding. And that s how we got our exterior ready for some siding. Once the old siding has been removed clean the exterior walls thoroughly removing any old paint.

Slide the new window frame into place. On this particular job the home already had aluminum siding. And my dad notched the front door trim around the new threshold so it would run all the way down to the porch floor. Aluminum windows are usually installed by attaching them through a flange to the wall framing and then the flange is covered with the siding.

Instruction on how to install exterior 2x4 trim around a new or old window. Cut the horizontal piece to size and snap it in place over the vertical moldings. How to install windows on a home with aluminum siding removal of old window. Before you replace the siding cut and install new j channels to prevent water from leaking into your home.

The cement board panels are fastened to the battens. To reach the flange you need to remove the aluminum.