Learn why placing HVAC ducts outside your home is the number one biggest mistake in HVAC system design. Join Matt Risinger in this informative video as he explains the problems with exterior ducts, the building science behind the issue, and practical solutions for both new construction and remodeling projects.

Matt discusses the prevalence of this issue in Southern construction due to slab-on-grade and crawl space construction methods. He explains the negative impacts of exterior ducts on energy efficiency, condensation, and indoor air quality, showcasing examples of microbial growth and insulation problems caused by this design flaw.

The video offers solutions, such as insulating at the roof line and treating crawl spaces like short basements, to bring ductwork inside the conditioned envelope of the house. Matt emphasizes the importance of building science, efficiency, and health in HVAC system design.

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Huge thanks to our Show sponsors Builders FirstSource, Polyguard, Huber, Rockwool & Viewrail for helping to make these videos possible! These are all trusted companies that Matt has worked with for years and trusts their products in the homes he builds. We would highly encourage you to check out their websites for more info.

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