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Our story

Our founder Jeff is a father of two that simply wanted to save money and reduce his family's carbon footprint by re-insulating his own home as safely and efficiently as possible. Sitting down with a cup of coffee to research existing insulation options, Jeff was surprised to find very few options on materials that could be installed from the exterior of his family’s home. More research revealed the limitations, huge costs, and in many cases the toxicity of working with these limited options.

Another cup of coffee and a few clicks of the mouse later, Jeff ran into a start-up insulation company that worked with loose fill sheep’s wool insulation. With a curious entrepreneurial attitude, Jeff hopped into his Subaru and made the drive out to meet these people. The initial meeting grew into a partnership. Initially, Jeff worked with installers, consumers and distributors across the country, and it quickly became obvious that the sheep wool was the cleanest most durable insulation material available for many building applications. After testing sheep wool in a see-through test wall, and with heat scanning equipment, it also became apparent that wool by itself didn’t have the density to push past old fiberglass and into drafty voids, and was not suitable for “retro-fitting” into walls of existing homes.

Back to his own home project, Jeff wisely piled the sheep wool high into his family’s attic. Yet he remained un- willing to remove his existing drywall, and Jeff’s home continued to let way too much heat escape through the walls.

With an afternoon iced coffee half way down on his commute home, our founder had an interesting idea; “why not combine fluffy clean wool, with high density cellulose insulation? The springy wool will help cellulose fight gravity in the wall cavity and last longer, and the cellulose will carry the wool into the walls.”

His experiments evolved from garage to laboratories. Jeff worked with one the world’s foremost scientists on heat transfer Dr. David Poirier, and with the Portland State University’s Green Building Research Laboratory. After testing numerous ratios, fiber lengths and installation machines, SheepWÜL was born!