.Perhaps the most common addition to a house is an extension of the first
floor, a project that can be as small as a bay window or big enough to include
one or more new rooms. In general, room-size or larger additions require all
the key operations illustrated in this section—from building a foundation,
walls, and a roof to supplying power and heat.
A Walk-Out Bay Window
- Two Ways to Frame a Bay
- Clearing the Way for Cantilevers
- A Platform of Extended Joists
- Redirecting Joists
- Completing the Platform
Framing and Fitting the Window
- An Opening in a Platform-Framed Wall
- An Opening in a Balloon-Framed Wall
- A Knee Wall to Support the Window
- Installing the Unit
- Adding a Ready-Made Roof
Underpinnings for an Extra Room
- A Three-Sided Foundation
- Tying the New Floor to the Old
- Precision Fitting for a Concrete Slab
Grafting New Walls to Old
- Preparing the Attachments Points
- Assembling the. Walls
- A new bay window
Splicing On a New Roof
- Two Cornice Styles
- Building a Shed Roof
- Erecting a Gable Roof
- Roofs that Intersect
- Extending Gable Roofs
Finishing an Addition Roof
- Leak-proofing Joints
- Adding Gutters
Opening the Common Wall
- A Header Concealed in the Ceiling
Wiring for a Small Addition
- Mounting Outlet Boxes
- Running Cable to the Addition
- Wiring the Boxes
- Making Service-Panel Connections
Supplying Heat to the Room
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