Window installation with exterior insulation is a challenge. Solve the problem with ThermalBuck.
ThermalBuck extends the mounting point for windows & doors, and insulates the rough opening to limit thermal bridging.
ThermalBuck outperforms a traditional wood buck, and protects the integrity of your window installation.
PHIUS Verified Psi-Install Data:
Alpen 925 Zenith Nail Fin Installation
with ThermalBuck.
News & Events
BRINC Building Products, Inc. has expanded ThermalBuck distribution in the Northwestern U.S and Canada through a partnership with Small Planet Supply, a well-known regional high-performance building material supplier for over 10 years. Small Planet Workshop (the original company name) emerged from a division of West Coast Associates to support the… Read more
Most people would assume it makes zero sense to build a passive house in a hot climate. The indoor/outdoor temperate differences aren’t as extreme as they tend to be in other climate zones. But a passive house still offers a huge performance increase from traditional building methods, and a great… Read more
If a window isn’t installed properly, it won’t matter how energy efficient it is.
Installing windows on a building with exterior insulation isn’t easy. The window and the rigid foam or mineral wool need to line up on the same plane for good drainage, proper cladding attachment, and to prevent compression of the insulation. Rough openings have always been the weakest spot on any building for air and water infiltration, and “bumping” the window out only makes it more difficult to achieve a good air and water seal.
Traditionally a wood buck is built to extend the mounting point of the window to create a flush plane. But wood can rot, warp, and shrink over time. Wood is a poor insulator, allowing thermal bridging around each window and door. Not only does it reduce the energy efficiency of the building, it causes condensation to form, and potential damage from moisture – which can lead to extensive repairs.
ThermalBuck is cut to fit on site, and installed with DAP Dynaflex 800 sealant & roofing nails.
ThermalBuck extends and insulates the RO with an R-value of 4.4 per inch.
The window is fastened through ThermalBuck into the structure (min 1-1/4″).
ThermalBuck solves the challenge of installing nail flange windows & doors with exterior insulation by extending the mounting point to create a flush plane for cladding. It also insulates the rough opening, limiting thermal bridging around windows & doors.
Coated with a waterproof resin and secured to the rough opening with an air & water barrier sealant* and nails, it’s simple to install and easier to flash than a wood buck. Dimensionally stable and strong, it will not warp, rot, or shrink, and helps to support the weight of the window. ThermalBuck outperforms a traditional wood buck, and protects the integrity of your window & door installation.
The continuous insulation solution for the high-performance building envelope.
*We recommend ThermalBuck installation with DAP Dynaflex 800 Modified Polymer Sealant or Dow Corning 758 Silicone Sealant
“Once you see it, you really understand the problem this solves for builders like me.”
– Matt Risinger, builder, building science expert, Risinger & Co., Austin, TX
For information about scheduling a ThermalBuck installation demo in your area email us: [email protected]
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.
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