Mastering the art of installing a perfectly square window

How To Install a Window | Generation Next | This Old House · 7:26 · Video: This Old House · Watch at the source

In short: Watch as Jeff demonstrates how to install double hung windows with precision. This video covers essential techniques for ensuring windows are completely square and introduces a modern method for waterproofing sills using stretch tape to simplify corner sealing.

This demonstration is part of the Generation NEXT initiative, which aims to address the critical shortage of skilled workers in the American building trades. By pairing apprentices—ranging from complete novices to those with several years of experience—with master professionals, the program seeks to bridge the growing skills gap in home construction.

The footage highlights the importance of technical accuracy in carpentry, specifically focusing on the structural necessity of square window frames and efficient waterproofing solutions.

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