by R-Value Insulators | Oct 20, 2026 | Industry News
The first real cold snap hits. You pour your coffee, open the blinds, and there it is. Water running down the glass. Puddles on the sill. Maybe even a sheet of ice on the inside of the window. If that sounds familiar, you’re not alone. Wet winter windows is one...
by R-Value Insulators | Sep 16, 2026 | Industry News
If you’ve met RVI recently, it might be through a crew on a custom build somewhere in the Northwoods, or Sam Hartmann walking a builder through what a blower door test shows. What most people don’t know is how Sam got here, or what’s still driving...
by R-Value Insulators | Aug 25, 2026 | Education
If you’re building a new custom home, chances are someone has mentioned a “blower door test” to you. Maybe your builder brought it up. Maybe you saw it referenced in a Focus on Energy certification packet. Maybe you’re a builder that has thought...
by R-Value Insulators | Jul 29, 2026 | Industry News
We work with builders across Northern Wisconsin, so it makes sense that most of our conversations focus on new construction. New-build insulation is important for homeowners who care about comfort, durability, indoor air quality and energy efficiency. Existing homes...
by R-Value Insulators | Jul 8, 2026 | Education
Sam and Ashly Hartmann, owners of RVI, are deep in the process of building their own custom home in Northern Wisconsin this summer and it has us thinking about the importance of building a house you can control. A “Healthy” home means that we have total control over...