In this video, Ross Trethewey explains how air filtration systems work and how to build a localized DIY air filter.…
Ask This Old House home technology expert Ross Trethewey explores the design and testing of asphalt roof shingles that can…
Ask This Old House home technology expert Ross Trethewey helps install a robotic wall to maximize space for a small,…
Ask This Old House renewable-energy expert Ross Trethewey shows host Kevin O'Connor why Texas is the ideal environment for a…