GreenFiber Attic Insulation Nationwide

GreenFiber Attic Insulation: The New Braunfels Owner’s Guide

Most GreenFiber blown-in cellulose insulation jobs in New Braunfels run between $1.80 and $2.80 per square foot installed, depending on the depth and density needed to hit the target R-value. We stock GreenFiber cellulose on our trucks and can usually install same-day or next-day for standard attic fills. Homeowners typically notice the problem when upstairs rooms won’t stay cool in July, energy bills spike 20% or more year-over-year, or they spot thin or settled patches while storing holiday decorations.

Call (830) 243-6352

Which GreenFiber Models This Applies To

GreenFiber produces loose-fill cellulose insulation sold under the All Borate and Low Dust product lines, both common in Central Texas retrofits. The All Borate line carries a higher borate fire retardant load, which matters in New Braunfels because the humid subtropical climate can accelerate mold pressure on under-treated cellulose. Low Dust is what we typically see in homes built between 2010 and 2020, where the original contractor prioritized installer comfort over long-term chemical treatment density.

To identify what you have, check for a faded specification tag on the attic hatch or a stapled receipt near the HVAC air handler. GreenFiber bags are printed with a lot code and R-value chart, but settled cellulose loses 10-15% of its labeled thickness over the first five years. We don’t guess. We probe to the deck with a depth gauge and cross-check against the original bag specs.

Topside Attic Insulation New Braunfels is an independent service provider, not affiliated with GreenFiber. We also stock Reflectix radiant barrier products for hybrid systems where the attic needs both insulation type and radiant heat rejection.

Signs Your GreenFiber Attic Insulation Is Failing

• Uneven temperature between rooms. Cellulose that has settled or been disturbed by rodents or service trades creates thermal bypasses. In New Braunfels, we see this most often above master bedrooms where the original installer skimped on depth near the eaves.
• Energy bills climbing without rate changes. When cellulose compresses below its designed loft, the effective R-value drops proportionally. A home that needed R-38 at 10 inches now has R-25 at 6.5 inches, and the HVAC runs longer to compensate.
• Visible dust or insulation particles in living spaces. This signals air leakage pulling attic contents through recessed can lights, top plate gaps, or duct chases. The insulation isn’t failing; the air barrier is, and the cellulose is riding the pressure difference into your house.
• Wet or stained ceiling drywall near the eaves. In New Braunfels, humid Gulf air hits cooler attic surfaces and condenses where insulation is thin or missing. GreenFiber’s borate treatment resists mold, but it can’t stop moisture from soaking through first.
• Ice damming or heavy frost on nails in winter. Even our mild Central Texas cold snaps expose inadequate insulation. Warm, moist air hits the cold roof deck, condenses on nail shanks, and drips onto the cellulose below, degrading it over seasons.

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Replacement Cost & What’s Included

A full GreenFiber cellulose replacement in a typical New Braunfels home, 1,200 to 2,400 square feet of attic floor, runs between $2,160 and $6,720 installed. That range covers removal of degraded material, air sealing of top plates and penetrations, and new cellulose blown to R-38 or R-49 per your preference and code requirements.

What moves the number: attic accessibility (steep roof pitch or limited hatch size), existing insulation condition (wet or rodent-contaminated material costs more to remove safely), and whether the job includes baffle installation to maintain vented soffit pathways. We itemize each line on the written scope before anyone starts.

Every GreenFiber install carries our 365-Day Done Right Promise. You also get a Documented Photo Record of the completed work and, on applicable jobs, before-and-after blower-door numbers showing the actual air leakage reduction. The number on the blower-door printout tells you what the insulation did. Everything else is just talk.

DIY or Call Us?

Homeowners can safely check two things: measure insulation depth with a ruler at multiple attic locations, and inspect the attic hatch perimeter for visible gaps or missing weatherstripping. Both take ten minutes and tell you whether you’re in the ballpark or far below it.

What we don’t recommend: renting a cellulose blower without first air sealing. GreenFiber performs well only when the attic floor is a continuous air barrier. Skip that step and you’re paying to blow conditioned air into the attic through every can light and wire penetration. We also don’t suggest disturbing old cellulose without a respirator rated for fine particulates; the Low Dust label refers to installation, not decades of accumulated skin cells and rodent activity.

For an honest assessment of what you actually need, call (830) 243-6352. We’ll read your attic with you, show you the depth gauge readings, and give you a written price before any work starts.

FAQs