The Home Envelope | Insulation, Air Sealing and More

Your house is still drafty after new windows, and the glass is rarely to blame. Here's where the cold air is really getting in.Learn why the chill across your ankles is often a fake draft off cold glass, how the stack effect turns your home into a chimney, and why 1 recessed can light can leak 9 CFM50 into your attic. We break down the top plate gap that equals a window left open 4 to 5 inches all winter, how leaky ducts and closed bedroom doors pull cold air through your walls, and the attic-first air sealing order to follow before you replace another window.Nealon Insulation has kept Connecticut homes warm since 1977. Based in Clinton, Connecticut, we serve homeowners across the state. Book your free estimate at https://www.nealoninsulation.com/#DraftyHouse #AirSealing #StackEffect #EnergyEfficiency #Insulation #Connecticut #HomeImprovement

Insulate your old plaster walls the wrong way and you can rot the framing—or send hundreds of pounds of plaster crashing to the floor.Pre-1950s homes hide empty wall cavities that bleed heat through a constant convective loop. This episode breaks down the fix: why dense pack cellulose packed to 3.5 lbs per cubic foot is the gold standard for historic walls, cutting cavity air leakage up to 90% and reaching R-13 in a 2x4 wall. You'll learn the "knuckle tap" test that keeps your plaster from pillowing off the lath, why burying live knob-and-tube wiring is a fire hazard, how insulating without air sealing is a sweater with no windbreaker, and why the right retrofit can trim heating bills 30-50%.Brought to you by Nealon Insulation, Connecticut's trusted insulation contractor since 1977. Based in Clinton, Connecticut, and serving homeowners across the state—get a free estimate at https://www.nealoninsulation.com/#DensePackCellulose #PlasterWalls #HistoricHomeInsulation #CTHomeowners #HomeImprovement #Insulation #Connecticut

Ice dams aren't a roof problem — they start in your warm attic. Here's why Connecticut homeowners get them every winter and how to stop them for good.We break down the physics: a foot of snow acts like an R10–R15 blanket, your warm attic melts it from below, and it refreezes into a wall of ice at your cold eaves. You'll hear why your gutters are innocent, why hacking at the ice with a hammer or running electric heat cables only makes it worse, and the 3-step permanent fix — air sealing, R-49 to R-60 attic insulation, and balanced ventilation. Plus the weird pantyhose-and-calcium-chloride trick for emergency relief (never rock salt).Brought to you by Nealon Insulation, Connecticut's trusted insulation contractor since 1977. Based in Clinton, Connecticut, and serving homeowners across the shoreline and statewide. Get a free estimate at https://www.nealoninsulation.com/#IceDams #AtticInsulation #AirSealing #CTHomeowners #Insulation #Connecticut #HomeImprovement

Why does your upstairs always feel 10 degrees hotter than the rest of your house, even when your air conditioner is running nonstop?In this episode of the Nealon Insulation Podcast, we break down the building science behind one of the most common homeowner complaints. You'll learn why the problem often has little to do with your air conditioner and everything to do with airflow, air sealing, attic insulation, ventilation, and how your home actually works as a complete system.We also cover common mistakes homeowners make, like closing supply vents or installing a larger AC unit, and explain why those "solutions" can actually make the problem worse. If you've ever wondered why your second floor never seems comfortable during the summer, this episode will help you understand the real cause and the best ways to fix it.If you're in Connecticut and struggling with a hot upstairs, Nealon Insulation can help. Our team has been improving comfort and energy efficiency in Connecticut homes since 1977 by identifying the real causes of temperature imbalances, not just treating the symptoms. Contact Nealon Insulation for a free estimate and let us help make your home comfortable year-round.Visit https://www.nealoninsulation.com or call (860) 669-0333 to schedule your free estimate.

In this episode, we take a deep dive into ceiling insulation and why it plays such a critical role in cold-climate homes, especially in Connecticut. From winter heat loss and the stack effect to attic moisture, mold, ice dams, and building code requirements, we break down the science behind keeping homes warmer, safer, and more energy efficient.We’ll explore Connecticut’s current insulation standards, including R-60 attic requirements, the importance of proper air sealing, and why even the best insulation can fail if hidden ceiling bypasses are left unsealed. The episode also covers common insulation materials like cellulose, fiberglass, spray foam, and rigid foam, along with the differences between vented attics, unvented roof systems, and cathedral ceiling assemblies.Before any insulation project begins, safety matters. We also discuss key hazards such as active knob-and-tube wiring, asbestos-containing vermiculite, mold, and roof leaks that can delay or prevent weatherization work.Whether you’re a homeowner, contractor, energy auditor, or building professional, this episode explains what really matters above the ceiling: controlling heat, air, and moisture to create a more durable and efficient building envelope.Nealon Insulation of Clinton, Connecticut