Shop Class

How to Install Exterior Window Trim
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.
Shop Class: How to Install Nail-Fin Windows in 5 Common Wall Types
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.
Installing a Nail-Fin Window Over Zip System Sheathing
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.
Installing a Nail-Fin Window Over Rigid-Foam Insulation
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.
Installing a Nail-Fin Window Over Housewrap
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.
Installing a Nail-Fin Window Over Peel-and-Stick Housewrap
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.
Installing a Nail-Fin Window Over a Fluid-Applied WRB
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.
Part 1: Prepare a Rough Opening for a Nail-Fin Window over Zip System Sheathing
Use a piece of bevel siding and some carefully fitted pieces of Zip System tape to flash the sheathing to the framing.
Part 2: Install a Nail-Fin Window in a Wall with Zip System Sheathing
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.
Part 3: Flash a Nail-Fin Window in a Wall with Zip System Sheathing
Wrap the sides and head of the installed window with Zip System tape, but leave the bottom flange of the window untaped for drainage.

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