Learn how to measure, cut, and build window casing made of cellular PVC, solid wood, poly-ash boards, or any common molding material. Plus, get tips for a clean and solid installation.

Builder Jake Bruton demonstrates trusted window-flashing details for walls with the following water-resistive barriers: Zip System sheathing, exterior rigid-foam insulation, housewrap, peel-and-stick membrane, and fluid-applied WRB.

In this Shop Class video series, builder Jake Bruton demonstrates flashing best-practices for installing a flanged window in a wall built with Zip System sheathing.

In this edition of Shop Class, builder Jake Bruton demonstrates trusted flashing details for a flanged window installed in a wall covered in a layer of rigid-foam insulation.

In this Shop Class video series, builder Jake Bruton demonstrates durable flashing details for a flanged window in a wall covered in housewrap—in this case, Benjamin Obdyke Hydrogap.

In this Shop Class video series, builder Jake Bruton shows how to flash a flanged window in a wall covered in a self-adhered housewrap, such Henry Blueskin VP100.

In this edition of Shop Class, Builder Jake Bruton demonstrates how to get the flashing details right when installing a flanged window in a wall with a fluid-applied WRB.

Use a piece of bevel siding and some carefully fitted pieces of Zip System tape to flash the sheathing to the framing.

Run a bead of sealant around the sides and top of the rough opening before setting, squaring up, and fastening the window to the framing.

Wrap the sides and head of the installed window with Zip System tape, but leave the bottom flange of the window untaped for drainage.