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Tools & Materials

Insulation for Homes in the Wildland Urban Interface

Noncombustible insulation gives homes a stronger chance of surviving a wildfire.

By Ben Bogie

As wildfires continue to destroy homes and communities across the country, building professionals are looking for insulation solutions that prioritize fire safety and resilience. Enter ROCKWOOL Comfortboard®, a noncombustible insulation option designed for homes in the Wildland Urban Interface (WUI).

Use it in wall or roof assemblies along with other noncombustible materials to build more fire-resistant structures without sacrificing performance or efficiency. Watch the video above or keep reading to learn more from high-performance builder and lead carpenter Ben Bogie.

Here’s the Transcript

We’re here in the ROCKWOOL booth at IBS and we want to talk about a very timely set of building assemblies — WUI (Wildland Urban Interface) assemblies. These are assemblies put together with areas that might be susceptible to fires in mind.

We have a couple of different options here. This is a noncombustible wall assembly that’s prepared for wildland fires. You have a noncombustible stucco in this case — or noncombustible cladding — a ventilation space, and then noncombustible insulation in the form of ROCKWOOL Comfortboard®.

We also have some roof assemblies. Here we have an unvented roof assembly using the ROCKWOOL Comfortboard®. This is for climate zones 1 through 3, and there will be details for climate zones 4, 5, and 6 as well.

Then there are options for venting. This is a soffit-vented WUI assembly, and this is an overvented WUI assembly. All of these assemblies give you options that will help your building withstand the risks of fire.

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Videos in the Series

  • A Closer Look at Smart Water-Leak Detection Systems

    This device will help ensure you never get surprised by a high water bill again.

  • A Drip-Free, Through-Window Heat Pump

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  • An Impressive Air-to-Water Heat Pump

    See why air-to-water heat pumps might become the new industry standard.

  • Insulation for Homes in the Wildland Urban Interface

    Noncombustible insulation gives homes a stronger chance of surviving a wildfire.

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About This Video Series

This year at the International Builders' Show in Las Vegas, we checked out tons of incredible booths. These clever accessories, noteworthy upgrades, and innovative products made us stop and take a closer look. Follow along as Ben Bogie, Brian Pontolilo, and Josh Salinger show off some of our favorite finds from IBS 2025. More about this Video Series

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