Sealing the envelope
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Practical guidance on spray foam, fiberglass, attic air sealing, energy loss and fire barrier code — written by the crew that installs it.
Both are spray foam, but they behave completely differently around moisture, sound and R-value. Here is how we decide which one goes into a job.
Most of the heat leaving a Tri-State home does not conduct through the insulation — it leaks around it. That distinction is where the savings come from.
Read How Spray Foam Insulation Actually Lowers Your Energy BillsWe install both, so we have no reason to oversell either. Here is where fiberglass is genuinely the better choice — and where it is a false economy.
Read Fiberglass vs Spray Foam: An Honest Comparison From a Contractor Who Installs BothSpray foam has to be covered by a fire barrier. Here is what that means, when a coating can replace drywall, and what inspectors are looking for.
Read What Is DC 315 Fireproof Coating and Why Does Code Require It?Insulation does not announce when it has stopped working. These are the symptoms we see most often on the calls that turn into full attic replacements.
Read Seven Signs Your Attic Insulation Needs to Be ReplacedThe framing stage is the only moment insulation is cheap and easy. Here is the sequence that avoids the expensive corrections after drywall goes up.
Read Insulating a New Construction Home: Getting It Right While the Walls Are Open
