WRB & Flashing

Replacing a 30-Year Old Replacement Window in a 100-Year-Old Wall That Was Upgraded With Exterior Foam Insulation 25 Years Ago

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.
Oct. 10, 2024
Dan Morrison
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Betsy and Joe's 100-year-old farmhouse was retrofitted a couple of decades ago in one of Building Science Corporation's early examples of a "deep energy retrofit." Remodeler David Joyce digs into the walls to check the performance of the exterior foam and construction tapes.

By removing the replacement window and the original window frame and then reframing the opening, David makes the viewable area bigger. By using triple-glazed windows, he makes the bigger area more comfortable.

The videos

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Framing

How to Install A New Flanged Window into an Existing WRB, Part 3: Reframing and Flashing

Removing the old window frame and weight pockets, reframing the rough opening, and flashing a new-construction flanged window into the old existing WRB
Feb. 21, 2022
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Siding & Exterior Trim

New Flanged Window in an Old Wall, Part 4: Final Insulating and Trim-Out

Replacing the exterior foam parts and trimming out the exterior
March 7, 2022
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WRB & Flashing

New Window, Old Wall 2: How to Surgically Remove An Old Window Without Destroying the Air Barrier

Replacing a 30-Year old replacement window in a 100-year-old wall that was upgraded with exterior foam insulation 25 Years ago (part 2 of 4)
Feb. 7, 2022
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WRB & Flashing

How to Install A New Flanged Window in an Old Wall 1: Overview

Replacing a 30-Year old replacement window in a 100-year-old wall that was upgraded with exterior foam insulation 25 Years ago (part 1 of 4)
Jan. 31, 2022
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