Window Installation and Replacement Guide

How to frame the conversation with customers to clarify which information is most relevant to their window choice.

Sash and jamb liners may make sense if the existing window frame is level, square, and in very good shape.

Sealing the layers—and overlapping them right—is how high-performance building gets done

A thermal break and solid backing puts the window on the outer face of a thick wall. Now, there's room on the inside window sill for cats and bowling trophies

Recessed into thick layers of insulation, innie windows are protected from the weather

The general idea of installing windows is to plug the big hole that you just cut in the wall.

Protradecraft traveled to the home of Building Science Corporation founders Betsy Pettit and Joseph Lstiburek, aka Dr. Joe, to film a replacement window replacement scenario not seen very often.

A deep energy retrofit in Concord, MA illustrates everything you need to know to bring a house to energy überville

The complete video collection on insulating, air sealing, and installing windows in a superinsulated sunroom addition in Wayland, MA

Three videos covering the step by step process for flashing, installing, and airsealing an in-betweenie window in a Passive House Retrofit

From extension jambs to mullions, begin with the biggest piece and work to the smallest

Water and air leaks in a building shell are difficult enough to detail on simple buildings. Complex structures can cause headaches for builders, remodelers, and architects who don't pick up their pens and trace at the design stage.

Integrating a new drainage plane into an existing one is not as easy as it looks on a phone, but you've got to start somewhere, right?

Down to the studs: removing the old window, along with the interior- and exterior trim, to the rough framing