How To Attach An External Window’S Plastic Trim Top?

To install exterior PVC trim, drill two pocket holes into the tops of each window leg casing and apply PVC cement to both parts. Allow the glue to become tacky, allowing the PVC to create a permanent bond. Align the vertical leg to the top casing and clamp so the joint is flush. Once the pieces are aligned, install the pocket hole screws.

In this episode of Shop Class, learn how to measure, cut, fasten, and caulk window casings made of cellular PVC, solid wood, poly-ash boards, or any common molding material. Installing exterior PVC window and door trim can improve your home’s appearance and insulate it from rain and cold. Replacing window trim not only improves your home’s appearance but also insulates it from the rain and cold.

To build and install pre-assembled exterior window trim, follow these tips for a clean and solid installation. Measure and cut the pieces of exterior trim according to your window dimensions, then hold one piece against the side of your window frame using a level or square. One way to install the window 3/4 in. out by placing it over some plywood bucks is to install the window 3/4 in.

Use 2-3/4″ Cortex hidden fasteners every 16-20 inches apart to create a perfect hole for inserting a PVC plug. The most common method of installing PVC trims is using an adhesive such as superglue, which most good commercial superglues use an activator to accelerate the process. Installing the new trim is as simple as nailing it onto your house and sealing the edges with caulk.