The Weekend Warriors Home Improvement Show · PARR

Insulating and Air Sealing

·46 min·2 clips

They sealed a studio so tight that the door bounced back open and they had to add a vent.

Tony and Corey open by folding insulation and air sealing into their Energy Efficiency Series. They frame it as one of the most important home topics for anyone living through a cold winter. The talk keeps coming back to the basic question of how a house holds heat, and why that question changes the minute the bill arrives. They compare homes built across different eras. They also point out that code expectations and insulation values have moved over time, and that the changes are still continuing. From there, they get into the numbers. They talk about common targets like R15 for some walls, R21 for two-by-six walls, R25 to R30 for floors, and R38 for cathedral ceilings. The episode makes a simple point out of a lot of bad DIY instincts: if a cavity is meant for a certain size of insulation, cramming in a bigger batt does not magically improve performance. Instead, compression cuts the insulation's effectiveness. That idea keeps coming back as a useful checkpoint through the discussion. They then shift to materials. Fiberglass comes up as the familiar baseline. Roxul and rigid foam are presented as alternatives when a project needs more R value per inch. The hosts talk through foam board sizes and thicknesses, and they note that rigid foam can deliver roughly R6.5 to R6.8 per inch depending on the product. That matters in tight spaces. Cathedral ceilings are the example they use to show why thickness constraints can force a different material choice. They also mention that some assemblies still need to reach higher targets like R38 even when the framing leaves less room to work with. The material list broadens again with pink foam, blue foam, foil-faced foam, R-Max, Celotex, and polyiso. They treat the options as tools with different jobs, not as one-size-fits-all upgrades. Polyiso gets a specific mention for slab and garage applications, especially when insulating a garage floor. The discussion stays grounded in what fits, what performs, and what an average homeowner is likely to run into. Rather than chasing fancy theory, the hosts keep returning to practical performance, cost, and the shape of the space in front of you.

As heard by us

A practical look at why insulation fit and air sealing matter more than guesswork.

Tony and Corey spend the hour on insulation and weatherization, treating the subject as the unglamorous work that can make a house feel either livable or punishing.

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Why you'd press play

You want the insulation basics before your next bill or remodel decision.

Read the full recommendation in PlayNext →

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