OVER AND OUT
THURSDAY, SEPTEMBER 4 I 4 P.M. ET/1 P.M. PT I 60 MINS
EXTERIOR INSULATION FOR ROOF ASSEMBLIES
Design the right roof for your build and climate zone to achieve thermal continuity and long-lasting performance
A whole-house continuous insulation strategy includes the roof
An exterior insulated roof—also known as an “overroof”—is a critical part of the continuous insulation whole-house strategy to eliminate thermal bridging and improve durability of the assembly. Maintaining thermal continuity is important in any climate for efficiency, whether you’re heating or cooling the home.
This session will explore the most common types of roof designs, including flat, low-slope, and pitched roofs, as well as the different approaches to insulating. Much like exterior walls, roofs can be insulated from the exterior only, split insulated (both exterior and interior), and interior only.
The panelists, including R‑Class regulars Randy Williams and Travis Brungardt and guest builder Randy Rand, will discuss the many factors to consider when choosing exterior continuous insulation vs. interior batts, the benefits of stone wool insulation in these assemblies, and when it makes sense to consider a mixed material design.
You’ll learn how to:
Choose the right insulation assembly design: exterior only, split, or interior based on roof type and climate factors
Plan efficient installations: board sizing, framing patterns, fastening, and transition details to maximize speed, minimize waste, and ensure performance
Design vapor open roof assemblies: to permit drying, and minimize risk of moisture damage
Meet performance targets and ensure durability: thermal continuity, ventilation requirements, and rainscreen integration
Recognize the importance of material selection: where and how to integrate stone wool with other insulating materials when needed
Register now to join the discussion.
📅Event Date: Thursday, September 4
⏰ Time: 4 p.m. ET / 3 p.m. CT / 1 p.m. PT for 60 mins
Meet our guest builder
Randy Rand
Randy Rand is a high-performance builder, consultant, and training director with passivehausMAINE. He is a certified Passive House tradesperson who applies his deep knowledge and passion for quality to all his builds. His business philosophy at r.haus design build is to build more than just homes—they create lasting spaces that combine sustainable design, craftsmanship, and innovation. He also happens to be the very first winner of ROCKWOOL’s R‑Class Won & Done Sweepstakes.
R‑CLASS ROUNDTABLE CO-HOSTS
Meet the panel
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Travis Brungardt
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Randy Williams
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Nick Stone
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Chris Caporuscio
Travis Brungardt
Travis Brungardt, co-founder of Catalyst Construction, is a leading figure in innovative building and design. He brings a wealth of knowledge and diverse expertise to every project, with a focus on design excellence, building science, and versatile trade expertise. Travis is passionate about promoting builder education; when he’s not on the job site he’s traveling the country as one of the innovators behind the Building Science Symposium series, cohosting the Building Consensus podcast and contributing to the Build Show Network. Catalyst Construction was founded by Travis and his business partner Joe Cook; they are known for delivering exceptional craftsmanship and creative solutions in both remodeling and new home construction.
Randy Williams
An energy auditor who comes from a family of builders, Randy Williams shares his expertise as editor for Green Building Advisor; he has also served as a consultant for power companies and the building community through the Midwest Building Symposium. Randy primarily works with homeowners and fellow builders on existing homes, conducting energy audits and blower door tests. Randy shares his insights as a regular contributor to the ROCKWOOL R‑Class Webinar series.
Nick Stone
Nick Stone is a dedicated Residential Architectural Specialist at ROCKWOOL, supporting the Northeast, US. He collaborates with architects, builders, and industry professionals to deliver high-performance insulation solutions that enhance energy efficiency and sustainability in residential construction.
Chris Caporuscio
Chris Caporuscio is a dedicated Key Account Manager on ROCKWOOL’s Builder Development Team. With a focus on fostering strong partnerships, Chris works closely with builders to deliver tailored insulation solutions that enhance building performance and sustainability.
Join Us Live – Register Today
Discover expert insights, practical strategies, and solutions to elevate your next building project. Engage with industry leaders and expand your knowledge on high-performance construction practices. Don’t miss this opportunity to learn, connect, and grow!