Window installation with exterior insulation is a challenge. Solve the problem with ThermalBuck.

How it Works

ThermalBuck extends the mounting point for windows & doors, and insulates the rough opening to limit thermal bridging. 

Product Sizes 

ThermalBuck outperforms a traditional wood buck, and protects the integrity of your window installation. 

Testing & Technical

PHIUS Verified Psi-Install Data:
Alpen 925 Zenith Nail Fin Installation
with ThermalBuck.

Thermal Bridge Coefficients

News & Events

BRINC BP to Expand Sales Force in Midwest & Western U.S. May 16, 2018

BRINC Building Products, Inc. launched ThermalBuck, the high-performance window buck, in November 2015 at the International Greenbuild Expo in Washington, D.C. And we’ve been trying to keep up ever since. Architects and builders recognize the simple solution ThermalBuck presents to the challenge of installing nail flange windows with exterior insulation.… Read more

ThermalBuck to Exhibit at Humid Climate Conference April 23, 2018

ThermalBuck joins our high performance partners from Alpen windows to exhibit at the 2018 Humid Climate Conference in Austin, TX, on May 21st – 22nd. We will showcase our joint PHIUS Verified Psi-Installation, featuring the Alpen 925 Zenith Nail Fin window with 2.5″ ThermalBuck. Hot, humid climates are not what usually comes to mind… Read more

For information about scheduling a ThermalBuck installation demo in your area email us: thermalbuck@brincbp.com

ThermalBuck Goes Rogue with Matt Risinger

Matt Risinger is a well-known talent in the building industry. Not only for his fine craftsmanship as high-end home-builder Risinger Homes, but also as a building science expert and educator.

Based in Austin, Texas, Matt appears at building events and trade shows across the U.S., and creates easy-to-follow, real-world content from his construction sites (that’s a lot of fun to watch) for his avid followers on social media. 

Matt recently featured hosted a demo in Austin, “Hands-On Building Science: Window Installation with Exterior Insulation” featuring ThermalBuck on Risinger Goes Rogue, as a smart, simple solution to the challenges builders face when installing windows with continuous insulation.

ThermalBuck in Three Minutes

Watch this quick overview to show you how simple the ThermalBuck installation really is. It takes you through the basic steps from the Simple Installation Guide to install ThermalBuck. You’ll see how easy it is to get ThermalBuck installation right, window after window.

For more detailed versions of each step, watch the complete Step-by-Step Installation Series, including tips on cutting and how to integrate the WRB here.